installation code 2016 isallais c water installations code cs-csi-p1c2 issue : 0 16-10-2016

Low Voltage Electricity & WaterI n s t a l l a t i ons Regu l a t i ons

WATER INSTALLATION CODE 2016

CS-CSI-P1/C2

His HighnessSheikh Tameem Bin Hamad Al-Thani

Emir of the State of Qatar

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EWater Installations Code CS-CSI-P1/C2

Issue : 0 16-10-2016 Unclassified

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Message from KAHRAMAA

Dear consultants, contractors and valuable customers.

Qatar General Electricity and Water Corporation “KAHRAMAA“ is committed as per its mission “To provide our customers with high quality electricity and water services, whilst creating value of our shareholders“, based on customer services Department mission to provide customers with high safe and secure.

The Customer Services Department (CSD) would like to present the book of (Regulation of internal water Installations and connection works).

As part of the Customer Services Department effort to facilitate communications, the book can be downloaded from KAHRAMAA website http://www.km.com.qa

The book is the only approved reference book approved by KAHRA MAA and from now then update and upgrade of the installation regulations book will be available on KAHRAMAA website.

In this case, KAHRAMAA reserves its right to update and upgraded the book of (Regulation of Internal Water Installation and Connections Works) without prior notice.

Kind Regards…

Engineer Yousef Ahmed Al Jaidah Manager of Customer Services Department Qatar General Electricity and water corporation “KAHRAMAA“

KAHRAMAACustomer services Department Customer Installation Section Tel +974 4462 8559Fax +974 4462 8294http:// www.km.com.qa

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Water Installations Code CS-CSI-P1/C2


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CONTENT

01 Regulation Purpose 02 Scope03 Application Categories04 General05 Definitions06 Villa, Raw House & House requirements07 Residential Compound requirements08 Towers, Residential flats, offices (High) Buildings09 Malls, Commercial Centers (offices, retails, Shops10 Fire System12 MDPE Services Connection13 Water Meter Cabinet 14 Customer’s Number Plate15 Usage Guide16 Appendix

16.1 Typical Drinking Water Quality

16.2 Site Environmental Conditions

16.3 General Specification Of Materials

Drawings & Forms

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Regulations Of Water Services Connection And Installation

1. Regulation Purpose.

2. Scope.

3. Application Categories.

4. General.

The regulation presented in this document form part of the requirements for water services connection and installation. The purpose of this regulation is to prevent misuses, waste, undue consumption or erroneous measurement of water and most importantly, to prevent leakage of drinking fresh water. These regulations would replace the former Rules and Regulation Guide Plumbing works, the previous additions 2006, 2007 and May 2009.

This document is intended for use by the designers, consultant, engineers, and plumbers across the State of Qatar and are applicable for all types of properties such as towers, multi stories high buildings residential compounds, Malls, retails, commercial centers and industrial sectors where the portable water would be supplied by KAHRA MAA.

Applicants (freehold Owners) intending to install all plumbing system must ensure that the systems comply with KAHRA MAA requirements of this regulations.

Application for proposed plumbing systems and its installations must be submitted to KAHRAMAA, Customer Services Department (CSD) for review, comments and subsequent approval. For any plumbing installation, the applicant (Freehold owner) should consider using an Approved Water Installation Plumber.

Useful contacts:

Qatar General Electricity & Water Corporation (KAHRAMAA). Customers Services Department, Tel: 4628282 / 4628344 Building Permit Complex - Doha, Tel: 49505050 Website: www.kahramaa.com.qa

Prior to starting any installation activities related to services connection or installation to the following development, the applicant must submit a preliminary design drawings attached with the building permit application to KAHRA MAA, Customer Services Department for review and subsequent approval.

• Villas, Compounded Villas.

• Multistory Buildings (Towers).

• Any premises betterment.

• Villa complex.

• Mall, Retails & Commercial Centers.

• Individual villa, industrial Sector.

• Commercial Sector.

4.1 GENERAL INFORMATION FOR OBTAINING WATER SUPPLY

4.1.1 Simplified Procedure

4.1.1. 1 Under the simplified procedure introduced for the design and installation of water service installations within the customer’s premises, water service workers have full control over the water service works under their charge and due to KAHRAMAA jurisdiction.

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In brief, the procedure requires the water service to notify KAHRAMAA before commencement of water service works by submitting all plumping drawings like site plans and schematic drawings of the water service installation. Upon completion of the water service works. Service Work certifying that the water service installation is completed in accordance with Kahra Maa (Water Supply) Regulations.

Water Service Work

Water service work, plumping shall only be carried out due to KAHRAMAA water service jurisdiction of an appropriate class as prescribed by the latest edition of this KAHRAMAA (Water Supply) Regulations. Developer / Customer shall engage an appropriate water service works by consultant to design, construct, alter or repair at his own cost. The water service installation within his premises to convey the supply of water from KAHRAMAA water networks.

Water Service Works / plumping Requiring a Professional Engineer (consultant)

KAHRAMAA, Customers Services Department decision are mandatory requirements for implementation in the above mentioned project during execution. The applicant in this stage exposed to these obligation for implementation of the project.

All material for services connection such as MDPE (Medium Density Polyethylene) pipes & fittings, Electronic Water meter, Water meter cabinet, etc. shall be subject and comply with the latest edition of KAHRAMAA General Specification of Main lying of Materials.

Material used in direct connection with portable water services connection must comply with the international Standard (ISO, BS, EN, DIN). These standards have a set of specification for the materials usage.

Any material used in direct contact with portable water, that cause or likely to cause contamination to portable water in service renewal, repair or replacement, which conveys or receives water supplied for domestic or food production purposes, should be disinfected and sterilized prior to such connection. Moreover, all materials to be used in contact with portable water must have health certificate issued by the world wide known quality body certifier (Either one of the following listed in section 16.47 in this Regulation).

Turn-on of Water Service

When all water service works are completed. The Customer / Owner will need to apply for water supply at the Customer Services Department for the installation of water service to the premises.

Inspection made by KAHRAMAA inspectors

KAHRAMAA inspector will carry out checks on completed water service installation on a premises. Where the water service installation is found to be not in compliance with the requirements specified as KAHRAMAA will require the water service the owner / developer or customer to alter, repair or rectify the water service installation.

Developers / customer applying for water service supply to their private property / project , development need completion certificate only pay a connection fees, depending on the size of connection to the development. The connecting pipe will then be laid from Kahra Maa water main to the meter service cabinet after the payment is made.

4.1.1.2

4.1.2

4.2

4.2.1

4.2.2

4.2.3

4.2.4

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Annual Inspection and cleaning of Water Storage TanksFor any part of a water service installation having any water storage tank from which water for human consumption is drawn in residential premises, the customer has to do the necessary maintenance and clean the storage tanks annually, as part of the water service installation is required to ensure that:

i. The storage tank (including any tap fitted to the storage tank) and its ancillary equipment.

ii. The premises where the storage tank and its ancillary equipment are located; are located, are kept properly locked at all times;

iii. Checks are conducted regularly for the purpose of ascertaining (including any tap fitted to the storage tank) or its ancillary equipment which comes to his knowledge.

Water Ground Storage Capacity

The following considerations affect the storage capacity:

i. The number of customers

ii. The type of building

iii. The number of fittings to be served

The ground storage tank capacity should be sufficient for 2 days of water demand.

Each case should be judged based on its merits, but for general guidance, the following table may be used in calculating the water demand during the design.

Land Use Category Unit Daily Water Consumption (Liters)

Residential Building (Per Capita) 250-400

Qatari Villas (Per Capita) 500-800

Worker Labor Accommodation (Per Capita) 80-150

Mixed Use Residential (Per Capita) 250-400

Table X-1 Unit Water Demands (Domestic Category)

(Source: KAHRAMAA Water Development Guidelines for Bulk Customer, April 2012)

4.2.5

4.3

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In this by laws booklet, the following words and expressions shall have the meanings defined as follows :

Applicant: Means a person who is of a communal service.

Approval or Approved: Means approval in writing or stamp by KAHRAMAA.

AMI: Advance meter infrastructure for the AMR

AMR: Automatic meter reading system for remote reading.

Back Flow: Means the flow in a direction contrary to the intended normal direction of flow.

Branch meters: denote all sub meters that supply different apartment in the residential buildings, villa compound, retails, shops in side mall or commercial centres.

Bulk Customer: is defined the customer who has demand exceeding 600m3 per day as a daily demand.

Customer: Means any person, persons or corporate body supplied with, or applying to be supplied with water by KAHRAMAA. Reference to “ Customer “ in these by laws shall include applicant as defined before.

Land Use Category Unit Daily Water Consumption (Liters)

Mixed Use Commercial (Per Capita) 60-80

Commercial Building (Per Capita) 60-100

Mosque (Per Capita) 10-50

Restaurant (Per Meal) 10-20

Hotel (Per Room) 200-300

Shop (Per Capita) 60-80

Office (Per Capita) 60-80

School (Per Capita) 60-80

University (Per Capita) 60-80

Medical (Per Bed) 60-80

Public Amenities (Per Capita) 20-50

Nursery (Per Capita) 60-80

Guard House (Per Capita) 60-80

Retail (Per Capita) 60-80

Theatre (Per Capita) 10-50

Stadium (Per Capita) 15-20

Town Centre (Per Capita) 60-80

Manufacturing (Per Capita) 60-80

Table X-2 Unit Water Demands (Non-domestic Category)

5. Definitions.

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Customer Premises: denote the owner property land like villa, house, building, etc. that has owner deed.

Corrosion Resisting Material: Means any material which is highly resistant to any corrosive action to which it is likely to be subjected in the circumstances in which it is to be used.

Cylinder: Means cylindrical closed vessel capable of containing water under pressure greater than atmospheric pressure.

Capacity In Relation To Storage Cistern Or Tank: Means the capacity of the cistern or tank measured to the highest level that water can reach when the float valve or other approved device for controlling the inflow of water is fitted.

Charge: Means any charge for water, any deposit or fees payable to the KAHRAMAA. The actual cost , or other works carried out by the KAHRAMAA, and any other charge, including any surcharge which is payable under these by laws.

Cistern: Means a fixed container for holding water at atmospheric pressure like tanks, sectional panel GRP tank or concrete tank.

Closed Loop: Means any system of pipes and water fittings through which water circulates in the internal network (In Residential Complex) and from which water is drawn for use, that feed or supplying water to cistern. Distributing Pipe: Means any pipe (Other Than An Overflow Or A Flushing Pipe) conveying water from a storage cistern or from a hot water apparatus supplied from, a feed cistern, or under pressure from that cistern.

Distributing Main: Means a pipeline that conveys water to the premises by means of service connection.

Domestic Water System: Means the water system which includes the distributing pipe and all associated apparatus within premises up to the point, where water is drawn for use.

Fire Service: Means the pipes, tanks, pumps, fittings and apparatus in any premises installed for the purpose of fire fighting.

Flot Valve: Means a valve, for controlling the flow of water into a cistern, the valve being operated by the vertical movement of a float riding on the surface of the water.

Flushing Cistern: Means a cistern provided with its discharging apparatus for discharging the stored water rapidly into a water closet pan, urinal, drain or sewer.

Header: Means the pipe conveying water from the downs stream tank ( Or Roof Tank ). In building through OTS ( Open To Sky ) supplying the corresponding floor.

Inside Service: Means the pipes and fittings in premises after the ground storage tank and any pipes and fittings between the storage tanks and the termination of the water network service connection, which shall normally be at the meter.

Insulating tubes: All roof plumping tubes / Pipes ( cooper / PPR / MDPE ) should be heat insulated by insulating materials, that should be bad conductor of heat ( Fibrous Material or Cellular material ) with Aluminum cladding. That protect and thermal block tubes from direct sun radiation.

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ISO: Means the International Organization for Standardization.

Internal Network: Means a pipeline that conveys water from the main cistern to the individual villa or buildings and other utilities inside the residential complex by the set of water pumps.

Meter: Means any appliance or device owned and maintained by KAHRAMAA for the purpose of measuring consumption.

Main Meter: Means meter that water is conveyed from the distribution network to the premises through it to the adjacent ground tanks.

Meter Cabinet: Means the aluminium box that design and approved by KAHRAMAA in which water meter will be install in.

Meter Chamber: Means manhole underground in which electronic sensor will install in connected to the GRP bulk meter cabinet by 2 inches conducts for the sensor cord to the EDU (Electronic Display Unit).

Over Flow Level: Means the lowest level at which water can flow in to the overflow pipe of a cistern or tank.

Potable Water: Means water supplied by KAHRAMAA which is suitable for drinking and culinary purposes.

Premises: denote any land, house, building possessed or revert to the owner. That house, building, apartment or part of a house and the cartilage thereof in respect of which water is supplied or applied for.

PRV: This defined as pressure reducing valve or check valve that regulate the flow in the appropriate pressure.

Riser: Means pipe that conveying water from downs stream of booster pump up to the roof tanks on the roof floor of the building.

Sub Main: Mean those water meters inside the compound (Complex), through which water is conveyed to the buildings from the internal network inside the complex, in case of complex composed of villa and buildings.

Sub Meters: Means those individual meters downs stream of the main meter or sub main through which water is conveyed to flats or villa in building or complex. Registered Plumbing Contractor: Means a person authorized by the KAHRAMAA, to carry out plumbing work of the grade indicated.

Service Pipe: Means so much of any pipe / arrangement of pipes for supplying water from a distribution main to any premises as it is subject to water pressure from that main and ends at the water meter at the customer’s boundary provide that only one pipe be connected to the water meter.

Service Connection: Means the part of pipes and fittings between the distribution main up to and including the water meter at the customer’s boundary.

Spill Over Level: Means the level at which the water in a cistern or vessel will first spill over if the inflow exceeds the outflow through any outlet and any overflow pipe.

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Stop Valve: Means any device other than a draw off tap, for stopping the flow of water in a pipe. Sub main meter: Means Meter install for each building inside the residential compound as tapping from compound’s internal water network.

Swimming Pool Plant Room: Means the mechanical room for swimming pool in which filtration, dosing and circulation of water is done through the surge or balance tank.

Stoppage Tank: Means any tank other than a flushing cistern having a free water surface under atmospheric pressure, but does not include a drinking trough or drinking bowl for animals including poultry.

Water Booster Pumps: Means set of pumps that boosting water from the main cistern to the villa or flat utilities. Very important to detect the pump’s total head and the height of the premises and relevant loses.

Warning Pipe: Means an overflow so fixed that its outlet, whether inside or outside the building is in a conspicuous position where the discharge of water can be readily seen.

Water installation works: denote all plumping works within the owner premises.

At the building permit stage all proposal project drawings submitted to Installation section (CSD) at the building permit complex and should be full of allusion documented to the KAHRAMAA requirements as follows:

6.1 Water meter cabinet

Compatible with the AMR system is required for water service connection. Service cabinet must be installing on the boundary wall to the nearest point to KAHRAMAA water networks either in front of the premises or at the back but must be closer to the main ground water tank not exceed 5 meter far. The pipe line must be MDPE. (22 mm up to 54 mm Water Meters) with the appropriate service cabinet see figure (CSD-CSI-1-2012) will emanate the installation. For meter size (22, 28 and 42mm), service cabinet embedded and install at height 1.1 m. from the ground level (Road Level), bottom of the embedded service cabinet there must be 80mm PVC duct embedded in the wall till - 0.3m of the road level end with 45 degree 80mm PVC elbow.

But the gate valve must be install indoors between the cabinet and the ground tank ball valve, all fittings should be soldering.

6.2 Ground water tank:

The cistern that holding the ultimate demand including Domestic or others if exist, must be determine. Citation signatory demand will be in Building permit Form see figure (BPW).

For villa, raw house, public house required ground tank should be minimum (2000 US gal), in case of more than 7 persons in a villa/raw house/public house, additional capacity of 85 US gallons (320 Litre) x no. of persons per villa/raw house/public house is required. The ground water capacity should be sufficient for 2 days of water demand.

• This water Tank should be under shade or shelter form direct sun radiation for conservation reasons.

• In case of villa or public house, that use pressurizes system the ground tanks must be sufficient relevant high consumption.

6. Villa, Raw House & House requirements.

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• In case of public or villa that may have ground tanks and roof tanks

• In case of villa with slope roof floor or Gobles, workshops the roof tank must be install in steel stand to as elevated tank. See figure (CSD – CSI – 09 -01) will emanate the installation.

• The Ground tank should be located near the water meter cabinet according to the KAHRAMAA specifications, the distance should not exceed 5 meters.

• In case of agricultural surfaces and swimming pool, it is recommended to require extra ground storage tank and that will be separate tank for domestic ground reservoir.

• In case of mixed commercial/residential properties, separate ground / roof tanks should be provided for residential and commercials and each ground tank capacity should be sufficient for 2 days of water demand.

• The water booster pump must be install in legal position at the downstream (out let discharge point from that tank) with non-return valve (one directional valve) then conveyance water towards roof tank.

• All All roof plumping: all tubes / Pipes (cooper / PPR / MDPE) should be heat insulated by insulating materials, that should be bad conductor of heat ( Fibrous Material or Cellular material ) with Aluminum cladding. That protect and thermal block tubes from direct sun radiation.

• All the under mentioned points should be submitted at the building permit stage, to be revised by KAHRAMAA and gain the approval.

6.3 Roof Tank:

Should be minimum (600 US gal or 2.3 m3) for public house or villa and other utilities building (guard room).

This water tank should be under shade or shelter for conservation and protected for direct sun radiation.

• All roof plumping: all tubes / Pipes (cooper / PPR / MDPE) should be heat insulated by insulating materials, that should be bad conductor of heat (Fibrous Material or Cellular material) with Aluminum cladding. That protect and thermal block tubes from direct sun radiation.

6.4 Roof plumping:

All tubes / Pipes (cooper / PPR / MDPE / HDPE) should be thermal heat insulated by insulating materials. That should be bad conductor of heat (Fibrous Material or Cellular material) with Aluminum cladding. To protect and thermal block from direct sun radiation.

6.5 The water booster pumps:

• Water pump is required for boosting and conveying the water from the ground water tank to the roof water.

• All the pumps must be automatic with floating switch on (low level or High level switch).

• Water pump must be set under the maximum pressure not exceeding 3 bar or 43 PSI.

• Water pump total head should be more the 20m a head fo two stories building, for other should be decided by the designer.

• All the under mentioned points should be submitted at the building permit stage, with all relevant drawings to be revise KAHRAMAA and gain the approval.

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7. Residential Compound requirements.

Residential compound could be one of two types:

• Pure villa compound see figure (Housing Complex Drawing. Nos. 1 And 2)

• Combine Villa & Building compounds see figure (Building Complex) or of villa and buildings, this will emanate the installation.

7.1 Water Meter Service Cabinet AMR compatible:

• Approved water meter service cabinet compatible with the AMR system is required see fig (CSD - CSI - 1 - 2012) will emanate the installation. This cabinet must be install and embedded in the boundary wall to then at point nearest to KAHRA MAA water networks either in front of the premises or at the back. The pipe line must be Copper or MDPE (22 mm up to 54 mm) Water Meters.

• Meter chamber is required in case of tie in point to the residential compound should be 80 mm or more, the water meter chamber is required, see figure (GIS / STD / 52 / 06 / A).

• All tapping for branch service connection inside the compound should be from the internal water network, by using Gun metal ferrule for each service connection see (DRG.no. GIS/STD/51) .

• All roof plumping: all tubes / Pipes (cooper / PPR / MDPE) should be heat insulated by insulating materials, that should be bad conductor of heat ( Fibrous Material or Cellular material ) with Aluminum cladding. That protect and thermal block tubes from direct sun radiation.

• All the under mentioned points should be submitted at the building permit stage, with all relevant drawings to be revise by KAHRA MAA and gain the approval

7.2 Compound Water Tanks (break tanks, each villa ground tank):

The villa compound water tanks requirements:

7.2.1 For each villa in a compound:

• Main Ground reservoir capacity should holding for each villa in a compound minimum (2000 US gal, in case of more than 7 persons in a villa/raw house/public house, additional capacity of 285 US gallons x no. of persons per villa/raw house/ public house is required) for each break down villa in the compound. Ground tank must be as per KAHRA MAA approve water tanks. Water tank must be on concrete base 0.2m thick.


• The supply inlet point to water tank must be on top to water tank with ball valve see figure (House Complex Drawing. no. 1) will emanate the installation.

• The water booster pumps should be fixed legally on the downs stream discharge points from water tank.

• Roof tanks: each villa should have roof tank with minimum capacity (600 US gal or 2.3 m3) using the gravity as power conservation system.

• The compound main break tanks will be 1/4 of the total compound ground tanks demand if each separate villa in the compound has its ground tank see figure (House Complex Drawing. no. 2) will emanate the installation.

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• Clearly the compound main water tanks capacity should be holding no. of villas in a compound x 2000 US gal, in case of more than 7 persons in Villa additional capacity of no. of villas in compound x 285 US gal x No. of persons / villa). This storage tank should be near the service cabinet on concrete plinth. The inlet supply from top tank through ball valve.

• All roof plumping: all tubes / Pipes (cooper / PPR / MDPE) should be heat insulated by insulating materials, that should be bad conductor of heat ( Fibrous Material or Cellular material ) with Aluminum cladding. That protect and thermal block tubes from direct sun radiation.

• All the under mentioned points should be submitted at the building permit stage, with all relevant drawings to be revise by KAHRAMAA and gain the approval.

• Sectional Panel GRP Tank: Must be as per KAHRAMAA specifications. This tank must hold the design proposal water demand as shown above. This tank should submit with all the relevant requirements in drawings at the building permit stage in the location and capacity on the appropriate 0.30m concrete plinth.

• Concreter Tank either Underground or above The Ground : Must be constructed due to “QCS” latest edition, utilization of epoxy coated reinforce steel bar, in accordance with the specification, with commensurate water demand, required the ventilation, GRP ladder and manhole cover exposed 0.10m above the floor level. To avoid the surface water entries, see fig. (CSD – CSI – 09 – 04) will emanate the installation.

• Each villa roof tank would typical as mentioned above in point (6.3)

• All the under mentioned points should be submitted at the building permit stage, with all relevant drawings to be revise by KAHRAMAA and gain the approval.

7.3 Roof plumping:

All tubes / Pipes (cooper / PPR / MDPE / HDPE) should be thermal heat insulated by insulating materials. That should be bad conductor of heat (Fibrous Material or Cellular material) with Aluminum cladding. To protect and thermal block from direct sun radiation.

7.4 Compound internal water network:

The internal water network inside the compound:

• Internal water network should be laid in only one side of the service road inside the compound.

• Pipes should be (HDPE or MDPE) with the inner diameter (80mm,100 or 150mm).

• Pipes should be laid in 0.60m depth for the road level. 0.20m dune sand is required as base for the network pipes. Further, 0.30m backfill of the dune sand over the network pipes.

• For any network pipe crossing the service road the 150/200mm PVC duct cover by concrete is required.

• Internal water network pipe should be on the other side of the sewerage network pipes to avoid the contamination.

• All tapping for branch service connection inside the compound should be from the internal water network, by using Gunmetal ferrule (gunmetal refer to BS 1400 - LG2), for each service connection see (DRG.no. GIS/STD/51).

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• Network control valves should be gate valves with (100x100mm) service box on the ground level, no manhole that used with flange gate valves.

• All of the above mention points should be documented in all submitted drawings at the building permit stage. In order to be reviewed by Installation section engineers due to KAHRA MAA regulation and specifications.

• At the service connection stage this internal network should be inspected before the embankment of the compound internal network. The pressure test under 6 bar, checking pipe type, gate valves, also checking fire hydrant, PVC ducts (sleeves) and control valves service boxes, then the embankment will be 0.3m sand on top of water pipes. Beside 0.2m dune sand bed.

• All the under mentioned points should be submitted at the building permit stage, with all relevant drawings to be revised by KAHRA MAA and gain the approval.

7.5 The Residential compound water booster pumps:• Set of 3 water pumps is required for boosting and conveying the water from the main water

tanks into the internal water network.

• All the pumps must be automatic with the pressurize system to switch on.

• All pumps must be set under the maximum pressure not exceeding 3 bar or 43 PSI.

• Selection of water pumps should be with the sufficient total head.

• All the under mentioned points should be submitted at the building permit stage, to be revise by KAHRA MAA and gain the approval.

7.6 Individual Branch water meter for flats or offices or apartments:• Water meters could be installed in each floor for all flats or apartments in dwelling buildings,

moreover inside the combine residential compound.

• Branch water meters could be install on the roof under the below conditions:

1. Should 24hours accessibility of entering the roof for monitoring, maintenance meters.

2. Minimum 2 roof tanks should be above the stair case. The downstream discharge header should be minimum 80mm tube.

3. Those meters should installed vertically and embedded on small wall 2.0m height.

4. Bottom of the cabinets there should be steel trench that protect all plumping.

• Each villa, club house, guard house and any other utilities buildings inside the compound should be with separate meter in approved service cabinet see figure (CSD – CSI – 1 – 2012) and (CSD – CSI – 2 – 2012) will emanate the installation. At 1.0 m bottom edges high form the compound road level.

• Flats or apartment should have separate water meter in approved branch water cabinet see fig. ( CSD – CSI – 2 – 2012) will emanate the installation.

• Sub main meter required for each building inside the combine compound meter should be in the approved meter cabinet compatible with the AMR system.

• All the under mentioned points should be submitted at the building permit stage, with all relevant drawings to be revise by KAHRA MAA and gain the approval.

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8. Towers, Residential flats, offices (High) Buildings.

For Residential multi stories Buildings, Tenement and Towers requirements:

• All individual apartments, flat, office, retail, should have its separate water meter. Install at the same floor in approved branch meter cabinet AMR compatible.

• Citation in all relevant drawings submitted by consultant e.g. Schematic Diagram for over all building showing the 22mm branch water meters should be in each floor.

• All branch water meters should be installed in the approved branch meters cabinet AMR compatible, see fig. (CSD - CSI - 2 - 2012) will emanate the installation.

• Roof plumping: all tubes / Pipes (cooper / PPR / MDPE) should be heat insulated by insulating materials, that should be bad conductor of heat (Fibrous Material or Cellular material) with Aluminum cladding. That protect and thermal block tubes from direct sun radiation.

• The consultant must determine the location of sub Meter to be closer to OTS duct (open to sky) through which the 100mm discharge Header is Pass through.

• Allusion by Consultant must consider the individual meters Cabinets to be in suitable location e.g. Corridor for easy monitoring and handling (at 100mm from the finish floor level).

• Clear citation of the pressure reducing valve in each floor taping before the corresponding individual sub meters must be set less or equal to 3 Bar or 42 PSI for meter accuracy see figure (CSD - CSI - 2 - 2012) will emanate the installation.

• Non Return Valve is required at the downstream of the propose meter to be install in see figure (CSD – CSI – 2 – 2012) will emanate the installation.

• Drain is required at the bottom of the cabinet conveying water to (OTS) Duct.

• All of the above citation must be mention in the submitted drawings specifically water schematic diagram at BP stage.

8.1 Main Water Meter Cabinet:

• Approved water meter cabinet AMR compatible is required for the service connection (54mm).

• It must be install and embedded in the boundary wall of the plot or premises adjacent to KAHRA MAA water main. This should be mention in the drawing Service Site Plan (SSP) water layout in building permit stage.

• In case of big diameter water service connection. Required the meter chamber. It must be constructed at the approved drawings BP (Building Permit) stage as in figure (GIS / STD / 52 - 06A) will emanate the installation.

8.2 Branch Water Meter Cabinet (AMR) compatible is required:

• Branch meters orientation could be installed in each floor with 32mm PVC conduit with nylon robe from the branch meter cabinet AMR compatible see fig. (CSD - CSI - 2 - 2012) will emanate the installation.

• Each flat, apartment, retail, office should have separate water meter install in each floor inside the approved branch meter cabinet AMR compatible see fig. (CSD – CSI – 2 – 2012)

• The branch meter cabinet should be installing 1.0m above the floor level. The branch meter cabinet should be embedded in the wall.

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2. Minimum 2 roof tanks should be above the stair case with header minimum 80mm.

3. Those meters should installed vertically and embedded on small wall 2000mm height.


8.3 Tower water demand & Multi stories building:

• The total demand for all flats, apartment, is (500 US gals or 1.9 cubic meter) for each flat / apartment that should be sufficient for 48hrs.

• The total demand should be calculated and should be in the ground tank capacity.

(500 US gal or (1.9m3) x total number of flats or apartment)

• The ground tank or reservoir that holding this total demand calculated as mention above. This ground tank could be in the ground floor, or basement.

• This reservoir or tank that holding the total demand could be regular PE tank or concrete tank or sectional panel GRP tank.

• Water ground reservoir could be approved Tanks or sectional panel GRP tank or underground concrete tanks see figure (CSD-09-04), citation of this total demand should be clearly at the (BP) stage to be revised by CSD engineer.


• All the under mentioned points should be submitted at the building permit stage, with all relevant drawings to be revise by KAHRA MAA and gain the approval.

8.4 Towers & Multi stories Buildings lifting Pumps:

• Determine the proposal pump total head, foregoing your set of pumps total head that required conveying the domestic water via the roof tanks.

• Determine the lifting pump total head that exceed the tower’s height, otherwise the break tanks at suitable floor is required, until reach the Tower roof floor. And so on till reach the roof floor and convey water to by gravity to all apartments / fats / offices.

• This to be allusive clearly in water schematic diagram submitted at the BP stage.

8.5 Roof plumping:

• All tubes / Pipes (cooper / PPR / MDPE / HDPE) should be thermal heat insulated by insulating materials. That should be bad conductor of heat (Fibrous Material or Cellular material) with Aluminum cladding. To protect and thermal block from direct sun radiation.

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9. Malls, Commercial Centres (offices, retails, Shops, etc).

9.1 Main Water Meter Cabinet:

• Approved water meter cabinet AMR compatible is required for the main service connection.

• It must be install and embedded in the boundary wall of the plot or premises adjacent to KAHRA MAA water main. This should be mention in the drawing Service Site Plan (SSP) water layout in building permit stage.

• In case of big diameter water service connection. Required the meter chamber. It must be constructed at the approved drawings BP (Building Permit) stage as in figure (GIS / STD / 52 - 06A) will emanate the installation.

9.2 Branch Water Meter Cabinet AMR compatible is required:

• Branch meters orientation could be installed in each floor with 32mm PVC conduit with nylon robe from the branch meter cabinet AMR compatible see fig. (CSD - CSI - 2 - 2012) will emanate the installation.



2. Minimum 2 roof tanks should be above the stair case with header minimum 80mm.

3. Those meters should installed vertically and embedded on small wall 2000mm height.


• Each (shop, retail, office... etc.) required water in the Mall should have separate water meter install in each floor inside the approved branch meter cabinet AMR compatible see fig. (CSD – CSI – 2 – 2012).

• The branch meter cabinet AMR compatible should be installing 1.0m above the floor level. The branch meter cabinet should be embedded in the wall.

• All roof plumping all tubes / Pipes: (cooper / PPR / MDPE / HDPE) should be heat insulated by insulating materials, that should be bad conductor of heat (Fibrous Material or Cellular material) with Aluminum cladding. That protect and thermal block tubes from direct sun radiation.

9.3 Malls & commercial Centres total water demand required:

• The total demand for total number retails, shops, offices. is (400 US gals or (1.5 m3) per each (office, retail, shop, ..,etc.) in the Mall there should be sufficient tank for 48hrs.

• The total demand should be calculated as above should be in the ground tank capacity.

(400 US gal or (1.5m3) x total number of (retails, shops, offices…etc.)

• The ground tank or reservoir that holding this total demand calculated as mention above. This ground tank could be in the ground floor, or basement.

• This reservoir or tank that holding the total demand could be regular PE water tanks or sectional panel GRP or concrete tank or tank refer to figure (CSD - CSI – 09 – 04).

• This water Tank should be under shade or shelter form direct sun radiation to reduce the water heat for conservation reasons.

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• Water ground reservoir could be PE tanks or sectional panel GRP tank or underground concrete tanks see figure (CSD-09-04) / (CSD-CSI – 09 – 04), citation of this total demand with all relevant drawings should be submitted at the (BP) stage to be revised by CSD engineer.

9.4 Roof plumping:

All tubes / Pipes (cooper / PPR / MDPE/ HDPE) should be thermal heat insulated by insulating materials. That should be bad conductor of heat ( Fibrous Material or Cellular material ) with Aluminum cladding. To protect and thermal block from direct sun radiation.

All the under mentioned points should be submitted at the building permit stage, to be revise by KAHRA MAA and gain the approval.

Fire system used in buildings is usually either sprinkler system type or hose reel type this will be authorized by authorized by CDD. So water meter is required for fire system at the upstream of the fire if separate water tank.

Fire system inside residential complex will be approved by CDD, but if there is separate fire water tank, the water meter at the upstream to tank is required.

If there are combined water tanks, water demand required for fire must be considered in calculation with the domestic demand and others.

• Separate fire tanks for the fire system in the building:

In case of separate fire tanks, fire water meter will be installing in the upstream of the tanks.

• Fire system supply from the combine water reservoir:

In case of combine water tanks, fire meter should be installed at the down steam within 1.5m spool pipe far from the fire water pumps. This should be clearly mentioned in the submitted drawings, and mention clearly in water schematic diagram at the BP (Building Permit) stage in order to be revised by CSD authorized engineers.

12.1 MDPE Installation:

• This specification covers laying of MDPE (Medium Density Poly Ethylene) pipes with associated fittings for size range 20 mm (1/2”) up to 63 mm (2”) underground and aboveground.

• Excavation and backfilling for MDPE service connection will be in accordance with section 4 and 5 of this specification, noting that, the pipe depth shall be 600 mm as detailed in the attached drawing no. (GIS / STD / 51B).

• MDPE service pipe shall have 100 mm sand bedding, 150 mm sand cover above crown of the pipe, another 150 mm selected backfill material with 100 % compaction and backfill material of varied depth up to ground level, all in accordance with road department highways maintenance section requirements.

• Trench marker tape with aluminium strip in the middle shall be laid at minimum 300 mm depth below ground level along route of pipe. Marker tape should be detectable warning tape of 150mm wide, 250 microns thickness to detect the pipe through metal detector.

10. Fire System& fire Meter and Requirements.

12. MDPE Services Connection.

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• The contractor shall tap distribution main at depth of minimum 900 mm and bring MDPE pipe from ferrule to a higher elevation without use of any fittings, as far as possible, so that MDPE pipe could be laid at a minimum depth of 600 mm from ground level, from distribution main till it reaches customer’s boundary wall.

• The minimum width of trench excavation is to be service pipe duct diameter (Either 100 mm Or 150 mm) used plus 200 mm and maximum width of trench excavation is to be service pipe duct diameter used plus 300 mm.

• When laid above ground along customer’s wall premises or elsewhere, polyethylene pipe shall be protected with GRP duct of minimum thickness 3 mm.

• Two sizes are allowed; 2” duct for 20 mm (1/2”), 25 mm (3/4”) and 32 mm (1”) and 3” duct for 50 mm (1 1/2”) and 63 mm (2”).

• The GRP duct shall start from ground level and be extended to an appropriate height to secure exposed MDPE pipe near the water meter service cabinet. The GRP duct shall be of semi-circular shape and be firmly fixed to the wall with brackets.

• MDPE pipes shall be multi-layer construction ( i.e. Black MDPE With Outer Layer Of Blue MDPE).

• Installation of MDPE pipes and fittings shall be carried out by plumbers who have been trained and certified by the manufacturers for pipes and fittings. The contractor shall submit copies of plumbers training certificate issued by the manufacturer to KAHRA MAA as proof of their skill and competency in performing such installations.

• All other clauses of section 12 such as pressure testing, sterilization are applicable for laying MDPE pipes and fittings.

• Note: From customer side, the following requirements shall be satisfied before giving a MDPE service connection;

• Domestic service cabinet shall be fixed inside the customer’s wall along with a UPVC duct underneath and minimum 300mm below the ground level and continued with a 90 deg bend to allow easy access of MDPE service connection.

• Since KAHRA MAA is installing ‘Lockable Stop Valve’ inside water service cabinet which can be operated only by KAHRA MAA, the customer must fix his own gate valve or stop valve after the water meter, to control water supply in case of any leak in his internal line. Another stop valve just before customer ground tank is optional, which customer can fix, if he desires for maintenance and service performance.

12.2 Materials MDPE:

• Polyethylene pipes shall be MDPE, PE - 80, SDR 11 and PN - 12.5 bar at 20°C. and shall be multi-layer construction (i.e. Black MDPE with outer layer of Blue MDPE).

• Polyethylene pipe shall be protected with PVC / GRP duct of minimum thickness 3 mm when laid aboveground along customer wall premises or elsewhere. Two sizes are allowed; 2” PVC duct for 20 mm (1/2”), 25 mm (3/4”) and 32 mm (1”) and 3” PVC duct for 50 mm (1 1/2”) and 63 mm (2”).

• The GRP duct shall start from ground level and be extended to an appropriate height to secure exposed MDPE pipe near the water meter service cabinet. The PVC / GRP duct shall be of semi-circular shape and be firmly fixed to the wall with brackets.

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• To trace route of polyethylene pipe laid underground, a 150 mm wide trench marker tape of 250 micron thickness with aluminum stripe at its centre, shall be laid above the polyethylene pipe, at 300 mm minimum depth below ground level in order to detect it through metal detector.

• PE pipes are normally supplied in bundles in coils of 200, 300, 400 or 500 m. length depending on their size.

• Fitting shall be compression type (Gunmetal) to suit MDPE pipe and must be UV resistant and shall have a pressure rating of PN16 @ 50 deg C for standard fittings and PN 12.5 for universal transition couplings (PE To Copper, PVC - U, Steel).

The water meter cabinet has different types, each one is used for different application depending on the case, these types are as per the following:

• Domestic Electronic Water Meter. (CSD-CSI –1-12).

• 2 “ Ø Electronic Flow Meter (Integral Type). (CSD-CSI –1-12).

• Branch Domestic Electronic Water Meter. (CSD-CSI –2-12).

• Bulk Electronic Flow Meter (Remote Type) 3” To 16”. (GIS/STD /52/06/A).

Note: Detailed design for each type is shown in the drawings.

Plate indicating the customer number shall be fixed on the corresponding premises see figure (Drawing No. FSD / FCS / 65). This customer number as reference number in the billing system for the relevant customer account for both Kahra Maa services.

There is some form in the appendix for applicant relevant to water services application:

• Residential complex internal water network Hydro test.

• Form “C“ for temporary supply, diversion and increase meter diameter.

• Building Permit Form.

• Building Permit Form for bulk customer.

• Water inspection check list.

14. Customer’s Number Plate.

13. Water Meter Cabinets.

15. Usage Guide.

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16.1 Typical Drinking Water Quality:

W.H.O. and E.U. Guidelines

Parameters Unit KM Requirement (MCL)

Physical

pH - 6.5 - 8.5

Appearance Qualitative Acceptable

Chemical

Total Alkalinity as CaCO3 mg/l 60 - 120

Lead mg/l 0.01

Manganese mg/l 0.05

Aluminium mg/l 0.2

Disinfectants

Chlorine dioxide mg/l ≥ 0.05 mg/l

Disinfection by-products (DBP)

Bromate µg/l 10

Trihalomethane (THM)

Chloroform µg/l 200

Microbiological

Total Coliform cfu Nil per 100ml

16. Appendix.

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Humidity % Temperature ° C Month

Mean Min. Mean Max. Mean Daily. Mean Min. Mean Max.

51.9 90.7 17.5 13.1 22.3 January

38.7 82.8 17.5 12.7 22.7 February

40.9 85.3 21.8 16.8 27.5 March

37.3 80.9 25.3 20.0 31.3 April

20.8 67.6 30.7 24.3 37.6 May

20.1 64.2 33.6 26.0 41.0 June

24.6 71.0 34.6 28.3 41.5 July

30.7 77.7 34.1 28.3 40.7 August

38.9 86.5 32.0 25.9 38.3 September

37.0 83.7 29.0 23.0 35.2 October

37.6 89.9 24.5 19.5 29.8 November

46.5 86.1 19.4 14.5 24.8 December

16.2 Site Environmental Conditions:

State of Qatar is classified as being among the world’s most arid and desert regions. The rainfall is concentrated in the winter and spring period (December to March) with an average of 50 - 80 mm per annum. No discernible pattern in rainfall occurrence is apparent, but there is a tendency of rainfall to occur more often during February and March. Rainfall can be heavy with poor natural drainage resulting in surface flooding.

• Minimum recorded related humidity is 100 %.

• Maximum recorded direct sunlight temperature is 75° C.

• Maximum recorded ambient shade temperature is 51° C.

• Minimum recorded ambient shade temperature is 0° C.

• Site elevation is 2 - 20 M AOD ( State of Qatar ).

Guideline Value Organisms

Must not be detectable in 100 ml sample. All water intended for drinking E. coil thermo tolerant coli form bacteria.

Must not be detectable in 100 ml sample.

In the case of large supplies, where sufficient sample are examined, must not be present in 95 % of samples taken throughout any 12 month period.

Treated water entering the distribution system.E coil thermo tolerant coli form bacteriaTotal coli form bacteria.

Bacteriological Quality Of Drinking Water

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• Prevailing winds are mainly northerly occasionally with south easterly gusts up to 140 Km / h.

• Sandstorms though not severe, do occur and can persist for several days.

• The site is not subject to industrial pollution, but due to being near the coast, the air can be salt laden with occasional fog. During the winter and spring periods, sever electrical storms with sheet and forked lightning can occur.

General Specification Of Materials:

Specification Of Polyethylene Pipes And Fittings For Services Connection (MDPE)

General:

Polyethylene pipes and fittings used for conveyance of potable water shall be manufactured in accordance with DIN - 8074, BS 6730, BS 6572, ISO 4427 or equivalent and shall be manufactured by ISO certified company.

Polyethylene pipes shall be MDPE, PE - 80, SDR 11, PN - 12.5 bar.

Polyethylene pipes shall be multi-layer construction (i.e. Black MDPE with Outer layer of Blue MDPE) with blue stripe to distinguish potable water.

Test pressure for the pipes shall be 1.5 times the nominal pressure at 50°C.

Polyethylene pipes and fittings shall be kite marked certifying it complies with ISO 4427 or equivalent, DIN, BS standards.

Pipe manufacturers must furnish test certificate in accordance with EN 10204 - 3.1 for batches of MDPE supplied.

Polyethylene pipe shall be protected with GRP duct when laid aboveground along customer wall premises. Two sizes are allowed, 2” duct ( For 20 mm, 25 mm And 32 mm ), 3” duct for 50 mm and 63 mm. The GRP duct shall be of semi – circular shape and firmly fixed to the wall with brackets.

Polyethylene pipe shall have trench marker tape of 150mm wide, 250 micron thickness with aluminium stripe to detect the pipe through metal detector.

Polyethylene Pipes ( Material ):

The polymer used for the manufacturing or the products must be approved by worldwide known quality body certifier such as WRC, DVGW, in contact with potable water at +50° C.

The pipes and fittings used for conveying potable water or likely to come into contact with potable water shall not constitute a toxic hazard, shall not support microbial growth and shall not give rise to unpleasant taste, or odour, cloudiness or discoloration of water.

Polyethylene shall be manufactured from virgin polyethylene resin of a single or bi-modal process of manufacture. Master batching and/or re-grind material is not permitted.

Polyethylene pipes installed in the water meter service cabinet between stop cock and water meter or in direct sunlight shall be black in colour, UV resistant, of solid wall construction to ISO 4427, all as per discretion of the Engineer.

16.3

16.3.1

16.3.1.1

16.3.1.2

16.3.1.3

16.3.1.4

16.3.1.5

16.3.1.6

16.3.1.7

16.3.1.8

16.3.2

16.3.2.1

16.3.2.2

16.3.2.3

16.3.2.4

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16.3.2.5 Pipes must be UV resistant with maximum 2.5 % carbon content.

16.3.2.6 The polyethylene pipe shall meet the following specifications:

16.3.3 Length and Size:

16.3.3.1 PE pipes are normally supplied 12 Mtrs. in coils as per the table below:

MDPE Pipe Sizes (In mm) And Coils (In Mtrs.):

16.3.3.2 The ovality of the pipe in coils as manufactured shall not exceed the value of 0.06 of the nominal size of the pipe.

16.3.3.3 The ovality of the pipe in coils after relaxation and straight pipe shall not exceed the value of “1 + (0.008 Of The Nominal Size Of The Pipe).

Specification Value

Minimum Density Measured According To ISO 1872 949 Kg / m3

Melt Flow Rate Measured According To ISO 1133 @ 2.16 Kg. Load = 0.18 g / 10min.@ 5 Kg. Load = 0.18 / 10min.

Tensile Strength At Yield 18 MPa

Elongation At Break 600 %

Elongation 10 %

Thermal Conductivity 0.32 W / m º K

Vicat Softening Point At 1 Kg. Load 122 ºC

Flexural Modulus ASTM 790 900 MPa

Tensile strength ASTM D638 30 MPa

HDT @ 0.46 MPa ASTM 648 90 ºC

HDT @ 1.82 MPa ASTM 648 58 ºC

Nom. Ø Min. Ø Max. Ø Min. Wall Thickness

Max. Wall Thickness Max. Coil Length

20 20 20.30 2.30 2.80 500

25 25 25.30 2.30 2.80 400

32 32 32.30 3.00 3.50 300

40 40 40.30 3.70 4.30 300

50 50 50.30 4.60 5.30 300

63 63 63.40 5.80 6.70 200

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16.3.4 Fittings: 16.3.4.1 Fitting shall be compression type (Gunmetal) to suit MDPE Pipe and must be UV resistant.

16.3.4.2 Pressure rating : SDR = 11, Bar = 12.5 bar

16.3.4.3 Inlet connection to be suitable for MDPE pipe, outlet connection to be threaded BSP female.

16.3.4.4 Fittings for polyethylene shall be approved to ISO 9080 (Plastic Piping And Ducting Systems - Determination Of The Long Term Hydrostatic Strength Of Thermoplastic Materials In Pipe Form By Extrapolation) or equivalent.

Flanged Fittings:

Flange adaptor to join MDPE pipe to flanged equipments ( 63 mm OD MDPE Pipe To 2” Dia. Flange To BS 4504 / ISO 7005, BS EN 1092 - 2 With PN 16 Rating ), Material l: black coated Steel or SG Iron to BS EN 1563 : 1997 Grade EN - GJS - 450 - 10, Gasket : EPDM Compound Grade ‘ E ‘.

16.3.4.5 Fitting bodies and nuts shall be made from polypropylene using at least 90 % virgin raw material so to comply with the following performance:

16.3.4.6 Fittings for PE connection shall be supplied complete with pre - assembled and captivated grip ring and “O” ring.

16.3.4.7 Fitting color shall be black so as to minimize potential light transmission and / or UV degradation.

16.3.4.8 Fittings shall comprise an internal positive stop to ensure perfect installation.

16.3.4.9 The compression fittings must conform with the following relevant internationally standards performance requirements:

Properties Test Method Value

Flexural Modulus ASTM D790 900 MPa

Tensile Strength ASTM D638 30 MPa

Elongation ASTM D638 10 %

HDT @ 0.46 MPa ASTM D648 90 ºC

HDT @ 0.46 MPa ASTM D648 58 ºC

Density ASTM D792 0.9 g / cc

Chemical Resistance - Excellent

Water Absorption - None

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Stop valve shall be made of gunmetal suitable in connecting MDPE pipes. For underground installation, stop valve shall be made of gunmetal BS 5433 crutch head with gunmetal ended compression couplings to fit MDPE pipe both sides for all size range from 20 mm up to 63 mm.

For aboveground installation inside / outside service cabinet before water meter, stop valve shall be of brass tamper proof lockable type as per discretion of the concerned engineer. Suitable size of gunmetal or polypropylene ( PPR ) compression couplings at both sides shall be used in connecting MDPE pipe of all size range from 20 mm up to 63 mm.

16.3.4.10 Ferrule and saddles shall be suitable to suit MDPE and shall be manufactured of gunmetal for underground installation application.

16.3.5 Saddle Straps: 16.3.5.1 Saddle straps for service connections shall be flat boss type suitable for tapping up to 2” diameter ferrule. The strap shall be suitable for making service connections under pressure or dry using approved tapping machine into DI, AC Steel or PVC pipes. The saddle shall be of two parts fitted with EPDM sealing gasket in a groove on the underside of the flat boss.

16.3.5.2 The flat boss shall be cast with a hole or marking through the boss to facilitate the drilling and tapping process. The straps shall be supplied undrilled.

16.3.5.3 The saddle strap shall be of gunmetal to BS 1400 - LG2 with stainless steel nuts, bolts and washer to ISO 3506 and shall be suitable for a working pressure of up to 16 Bar.

16.3.5.4 The name of manufacturer, patent number, pipe diameter to which the strap is suitable, and pipe material shall be engraved on the saddle strap.

16.3.5.5 The saddle strap shall be accompanied by manufacturer’s certificate stating date of manufacture and material specification.

16.3.6 Ferrule:

FERRULE SHALL BE OF GUNMETAL BS1400 LG2 BODY WITH GUNMETAL COMPRESSION COUPLING OUTLET SUITABLE TO FIT DIRECTLY WITH MDPE SERVICE PIPE OF ALL SIZE FROM 20MM TO 63MM, FOR UNDERGROUND APPLICATION. GUNMETAL WITH PE COMPRESSION COUPLING OUTLET IS UNACCEPTABLE

Test Criteria Standard

Dimensions Of The Threads ISO 7 / 1, BS 21

Pressure Testing - Tightness Of The Joints ISO 3458

Internal Pressure Resistance Of The Joints When Subjected To Bending Stress

ISO 3503

Resistance To Pull - Out Of Test Assemblies @ 20ºC ISO 3501

Internal Under - Pressure Test ISO 3459

Long Term Pressure Test ISO / DIS 14236

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FERRULES SHALL BE THE SCREW DOWN VALVE TYPE ALLOWING FOR THE SHUT OFF OF THE FLOW BY MEANS OF Ω” SQUARE HEAD SPINDLE EXTENDING FROM THE TOP CAP FOR OPENING AND CLOSING. THE VALVE SHALL CLOSE CLOCKWISE.

16.3.6.1 The ferrule outlet shall be compression type to fit polyethylene service connection pipes.

16.3.6.2 The ferrule stern, banjo, spindle, inner plug and top cap shall be of gunmetal to BS 1400 - LG2. The washers shall be of EPDM and shall provide the sealing between the outer body and the ferrule stem. A polyethylene top plug shall prohibit the ingression of dirt.

16.3.6.3 The ferrule shall be designed as a main stem with a 360° swivel outlet at 90° with control of water flow via the threaded inner plug. The inlet shall be male taper thread to BS 21.

16.3.6.4 The ferrule shall be suitable for drinking water at a temperature of up to 50 °C and capable to sustain a working pressure of up to 16 Bar without leakage.

16.3.6.5 The ferrule shall permit the installation of service connection using under pressure tapping through flat boss saddle straps.

16.3.7 Joints:

16.3.7.1 Pipe jointing shall be compression type or tighten type using a dynamic sealing method and positive grip.

16.3.8 Marking: 16.3.8.1 Pipes shall be marked as follows:

1. Manufacturer’s name.

2. Standard.

3. Nominal size of pipe in mm [ nominal outside diameter x nominal wall thickness ]

4. SDR.

5. Pressure rating in bar.

6. Month and year of manufacture.

7. Pipes shall have blue stripe to distinguish potable water.

8. Body of the fittings should have manufacturer’s name / logo.

16.3.9 Packing:

16.3.9.1 All compression fittings must be individually packed in transparent protective bags indicating its type and size.

16.3.9.2 All compression fittings must be packed in cartoon boxes.

16.3.9.3 If only one type of product is packed all cartoon boxes shall have a label showing the manufacturer identification, the description of the product, the drawing of the product, the relevant size and the quantity.

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16.3.10 Handling And Storage:

16.3.10.1 Pipes and fittings shall be handled and stored carefully as per manufacturer’s recommendation.

16.3.10.2 From manufacturer to laying stage, pipes and fittings shall be stored and transported in covered area to avoid direct sunlight.

16.3.10.3 All damaged pipe and fitting due to mishandling shall be rejected.

16.3.10.4 The height of stack of pipes shall be as per manufacturer’s recommendation.

16.4 WORLD WIDE KNOWN QUALITY BODIES CERTIFIERS:

WRc Evaluation And Testing Center,WRAS “ Water Regulations Advisory Scheme “.Fern Close, Pen-y-Fan Industrial EstateOakdale, Gwent NP11 3EH, U.K.Tel.: 44 - 01495 248454Fax: 44 - 01495 [email protected]

WRc - NSFHenley Road, Medmenham, MarlowBucks SL7 2HD, U.K.Tel.: 44 - 01495 636500Fax: 44 - 01495 [email protected]

LaboratoRI SpAVia Vitorchiano, 165 / 16700189 Roma, ItalyTel.: 0039 06 57992600Fax: 0039 06 [email protected]

Note: Manufacturer shall get from one of these Quality Bodies (Laboratories), certificate for their product for the suitability in contact with potable water at 50 ºC as per the requirement of BS 6920 or equivalent. All submitted certificates shall either be “original“ or “notarized copy” and if the certificate does not state such information, the full test report (form the certifier) for the raw material or material product including the product name, test conditions and methods, extract temperature for the sample, and the final results is required either original or notarized copy by a third party.

DVGW “ The German Technical AndScientific Association For Gas And Water “.

Josef- Wirmer - Straße 1-3,D - 53123 Bonn, Germany

Tel.: 49 - 228 - 9188 - 5Fax: 49 - 228 - 9188 - 990

http://www.dvgw.de [email protected]

NSF “ National Standard Foundation “.P.O. Box 130140

789 N. Dixboro RoadAnn Arbor, MI 48113-0140, USA

Tel.: (+1) 734 - 769 – 8010Fax: (+) 734 – 769 - 0108

www.nsf.org [email protected]

Aquacheck LtdEuropa Business Park, Barcroft Street BURY,

Greater ManchesterBL9 5BT, U.K.

Tel.: +44 (0)161 7638777Fax: +44 (0)161 7638788www.aquacheck.co.uk

[email protected]

Kiwa Water Research Groningenhaven 7

3433 PE NieuwegeinPO Box 1072 3430 BB

Nieuwegein, HollandTel: +31 30 606 95 11

Fax: +31 30 606 11 [email protected]

SIRIM QAS International Sdn. Bhd1, Persiaran Dato Menteri ,Seksyen 2 ,

Peti Sural 7035 40911 Shah AlamSeiangor Darul Ehsan, Malaysia

Tel: 60 - 3 - 5544 6400Fax: 60 - 3 - 5510 9439www.sirim-qas.com.my

Australian Water Quality CenterHodgson Road, Bolivar, South Australia

Postal Address: Private Mail Bag 3,Salisbury SA 5108

Tel.: (08) 8259 0211Fax: (08) 8259 0228

[email protected]

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Drawings & Forms

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installation code 2016 isallais c water installations code cs-csi-p1c2 issue : 0 16-10-2016

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