invitation to tender “itt” no. ps20130473 first...

FINANCIAL SERVICES GROUPSupply Management

October 18, 2013

INVITATION TO TENDER “ITT” NO. PS20130473 First Avenue and Boundary Road Pump Station Replacement

ADDENDUM NO. 4

RE: Appendix 4 - Drawings

PLEASE ADD: 1. The following Reference Drawing has been included to show a similar prefabricated Smith & Loveless pump station to the First & Boundary Pump Station. 75D2 ‐ 1st & Boundary Reference Drawing – Smith & Loveless Plan.pdf RE: Appendix 3 - Specifications

2. Add the following Specifications Section 15600 – Sluice Gates 3. Existing SCADA Panel

Scope of Work for existing SCADA panel to include removal of 96 interposing relays (6.1mm wide, Phoenix Contact) and replacing the units with 96 terminal blocks (6mm, screw type). Salvaged interposing relays to be delivered to COV for their use.

Include costs for this work in Payment Item 7.5 This addendum forms part of the Tender Documents and shall be read, interpreted, and coordinated with all other parts. The costs of all work contained herein shall be included in the Tender submission. The following revisions, changes, corrections, additions, and or deletions supersede the information contained in the original Documents to the extent referenced and shall become part thereof.

This addendum must be completed, and attached to your Proposal form.

If you have already submitted your Tender, this addendum shall be submitted to the Purchasing Services Office, City of Vancouver, 453 West 12th Avenue, Vancouver, British Columbia, Canada, V5Y 1V4, (Courier Delivery and Drop off is at the Information Desk, Main Floor Rotunda of the same address), prior to the Closing Time: 3:00:00 pm Local Vancouver, BC Time,in an envelope clearly marked “Addendum No.4 to Invitation to Tender No. PS20130473: First Avenue and Boundary Road Pump Station Replacement before the closing time of 3:00 p.m., October 29, 2013.

NAME OF VENDOR

SIGNATURE OF AUTHORIZED SIGNATORY

DATE

Linda Roussy Contracting Specialist

CITY OF VANCOUVER SLUICE SECTION 15600 1ST & BOUNDARY PUMP STATION PAGE 1 OF 6 TENDER NO. PS20130473 GATES OCTOBER 2013

1.0 GENERAL 1.1 Description .1 Provide all labor, material and equipment necessary to

furnish and install stainless steel flow control sluice gates and operators/actuators and as shown on the contract documents.

.2 Sluice gates and actuators are to be installed in a hazardous area and will be required to meet the requirements of the CEC (Canadian Electrical Code) for wet wells.

.3 Sluice gates are to be fitted with 50mm operating nuts as indicated on the drawings.

.4 The equipment provided under this section shall be fabricated, assembled, erected, and placed in proper operating condition in full conformity with the drawings, specifications, engineering data, instructions and recommendations of the equipment manufacturer unless exceptions are noted by the engineer.

.5 Gates and operators shall be supplied with all the necessary parts and accessories indicated on the drawings, specified or otherwise required for a complete, properly operating installation, and shall be the latest standard product of a manufacturer regularly engaged in the production of fabricated gates.

1.2 Governing Standards

.1 Except as modified or supplemented herein, all sluice gates and operators shall conform to the applicable requirements of AWWA C561, latest edition.

1.3 Quality Assurance

.1 The manufacturer shall have experience in the production of substantially similar equipment, and shall show evidence of satisfactory operation in at least 50 installations. The manufacturer’s shop welds, welding procedures and welders shall be qualified and certified in accordance with the requirement of the latest edition of ASME, Section IX.

.2 Gates shall be shop inspected for proper operation before shipping.

Issued for Addendum #4


.3 The manufacturer shall be ISO 9001: 2000 certified.

1.4 Submittals .1 The manufacturer shall submit shop drawings showing the detailed dimensions, gate and seal construction details and materials used in the gate and lift mechanism. Submittals shall also be coordinated with and include shop drawings for gate actuators. Submittals shall be in accordance with Division 1 requirements.

2.0 PRODUCTS 2.1 Acceptable

Manufacturers .1 H. Fontaine Ltd (Smith Cameron, Surrey, B.C. Ltd 604-

596-5522 ) . Slide Gate Series 20 Model 202 or;

.2 Golden Harvest (Golden Harvest Burlington Washingtion, USA 360-757-4334). Slide Gate Model equivalent.

2.2 Performance Specifications

.1 Leakage: Sluice gates shall be watertight under the design head conditions, subject to the following leakage allowances. Under the design seating and unseating head, the leakage shall not exceed 0.05 U.S. gallon per minute per foot (0.60 l/min per meter) of seating perimeter (one half of AWWA C561 requirements).

.2 Design Head: The sluice gates shall be designed to withstand the design head shown in the sluice gate schedule.

.3 Seal Performance Test: The gate’s sealing system shall have been proof tested through a cycle test in an abrasive environment and should show that the leakage requirements are still obtained after 25,000 cycles with a minimum deterioration.

2.3 Sluice Gates .1 General Design Gates shall be self-contained of the rising stem, configuration as indicated on the drawings and the gate schedule.

.2 Wall Thimble: Not applicable. Gates shall be wall mounted using grout pad as indicated.



.3 Frame: The gate frame shall be constructed of structural members or formed plate welded to form a rigid one-piece frame. The frame shall be of the flange back design suitable for mounting on a concrete wall (CS), concrete wall with extra-wide flange (CWX) as indicated. The guide slot shall be made of UHMWPE (ultra high molecular weight polyethylene). The frame and configuration shall be of the flush-bottom type and shall allow the replacement of the top and side seals without removing the gate frame from the concrete or wall thimble.

.4 Slide: The slide shall consist of a flat plate reinforced with formed plates or structural members to limit its deflection to 1/720 of the gate’s span under the design head.

.5 Guides and Seals: The guides shall be made of HUMWPE (ultra high molecular weight polyethylene) and shall be of such length as to retain and support at least two thirds (2/3) of the vertical height of the slide in the fully open position.

.6 Side and top seals shall be made of UHMWPE (ultra high molecular weight polyethylene) of the self-adjusting type. A continuous compression cord shall ensure contact between the UHMWPE guide and the gate in all positions. The sealing system shall maintain efficient sealing in any position of the slide and allow the water of flow only in the opened part of the gate.

.7 The bottom seal shall be made of resilient neoprene set into the bottom member of the frame and shall form a flush-bottom.

2.4 Operators and

Stem .1 Sluice gate is manually operated as indicated on the

drawings and in the gate schedule.

.2 Stem and Couplings: The operating stem shall be of stainless steel designed to transmit in compression at least 2 times the rated output of the operating manual mechanism with a 40 lbs (178 N) effort on the crank.



.1 The stem shall have a slenderness ration (L/r) less

than 200. The threaded portion of the stem shall have machined cut threads of the ACME type.

.2 For stems in more than one piece and with a

diameter of 1 ¾ inches (45 mm) and larger, the different sections shall be joined together by solid bronze couplings. Stems with a diameter smaller than 1 ¾ inches (45mm) shall be pinned to an extension tube.

.3 The couplings shall be grooved and keyed and

shall be of greater strength than the stem.

.3 Gates having a width greater than two times their height shall be provided with two lifting mechanisms connected by a tandem shaft.

.4 Stem Guides: Stem guides shall be fabricated from type 304L stainless steel. The guide shall be equipped with an UHMWPE bushing. Guides shall be adjustable and spaced in accordance with the manufacturer’s recommendation. The L/ratio shall not be greater than 200.

.5 Stem Cover: Rising stem gates shall be provided with a clear polycarbonate stem cover. The stem cover shall have a cap and condensation vents and a clear mylar position indicating tape. The tape shall be field applied to the stem cover after the gate has been installed and positioned.

.6 Lifting Mechanism: Manual operators of the types listed in the schedule shall be provided by the gate manufacturer. .1 All bearings and gears shall be totally enclosed in a

weather tight housing. The pinion shaft of crank-operated mechanisms shall be constructed of stainless steel and supported by roller or needle bearings.



.2 Each manual operator shall be designed to operate

the gate under the maximum specified seating and unseating heads by using a maximum effort of 40 lbs (178 N) on the crank and shall be able to withstand, without damage, an effort of 80 lbs (356 N).

.3 The crank shall be removable and fitted with a

corrosion-resistant rotating handle. The maximum crank radius shall be 15 inches (381 mm).

.7 Yoke: Self-contained gates shall be provided with a yoke

made of structural members or formed plates. The maximum deflection of the yoke shall be 1/360 of the gate’s span.

2.5 Materials Part Material

Frame, yoke, stem guides, slide, stem extension

Stainless Steel ASTM A-240 Type 304L

Side seals, stem guide liner

Ultra high molecular weight polyethylene (UHMWPE) ASTM D-4020

Compression cord Nitrile ASTM D-2000 M6BG 708, A14, B14, E014, E034

Bottom Seal Neoprene ASTM D-2000 Grade 2 BC 510

Threaded Stem Stainless Steel ASTM A-276 Type 303 MX

Fasteners ASTM F593 and F594 GR1 for Type 304

Pedestal, Crank Tenzaloy aluminum

Gasket (between frame and wall)

EPDM STM 1056

Stem Cover

Polycarbonate STM D-3935

Lift Nut, Couplings Manganese Bronze ASTM B584



UNS-C86500

2.6 Schedule Sluice Gate Identification

Wet Well Gate

Model (Series 20) 202 (NR1)

Wall Opening - Diameter 450 mm

Actuator Nut on stem c/w intermediate support

Head (Seating / Unseating)

6 meters

Mounting

CW

Note: Dimensions and elevations are approximate only and to be confirmed by the Contractor and shown on submittal drawings for review by the Engineer. Gate Type: Self-Contained

3.0 EXECUTION 3.1 Installation .1 Gates and appurtenances shall be handled and installed

in accordance with the contract drawings and manufacturer’s recommendations.

3.2 Field Tests .1 Following the completion of each gate installation the gates shall be operated through at least two complete open/close cycles. For electrically operated gates, limit switches shall be adjusted following the manufacturer’s instructions.

.2 Gates should be checked for leakage by the contractor (refer to the “Performance” section for approval criteria).

END OF SECTION


CITY OF VANCOUVER PUMPS SECTION 15452 1ST & BOUNDARY PUMP STATION AND PAGE 1 OF 22 TENDER NO. PS20130473 PIPING OCTOBER 2013

1.0 GENERAL 1.1 Description .1 The work of this section includes the installation of

pumping and piping systems and related equipment in the sewage pump station wet well and pump room.

.2 Stainless steel is to be used for piping in the wet well and coated steel piping in the pump room and other non- corrosive locations as indicated or specified.

1.2 Work Included .1 The work of this section includes but is not limited to the

items generally described following: .1 Supply and installation of new pumps and motors

and related equipment as indicated on the drawings;

.2 Provision of factory pump and motor performance data for all pumping equipment as specified in the contract documents. Pump data shall confirm pumps and motors do not contain any natural frequencies within the specified operating pump speed range assuming a rigid foundation.

.3 Supply and installation of new stainless steel

suction piping in the wet well with related equipment as indicated on the drawings.

.4 Supply and installation of new steel piping in the pump room complete with check valves, plug valves and related equipment as indicated on the drawings.

.5 Installation of approved pumping equipment in the station in accordance with the contract documents using qualified personnel and precision alignment techniques.

.6 Testing and commissioning of installed pumping equipment and related piping systems and related mechanical and electrical equipment and appurtenances in co-ordination with Division 15 and Division 16 specification requirements including co-ordination of equipment suppliers.

.7 Coordination with others in implementing a PLC control program for pump operation (Consultant to provide and load PLC program).



.8 All piping cutting, fitting, welding and touch up of coatings required for the new discharge piping.

.9 Coordination with Division 16 electrical work to ensure all equipment is wired, connected and approved for start-up.

.10 Supply and installation of all other mechanical items, equipment and components required or necessary to provide a complete working installation.

.11 Inspection of pump installations. The pump supplier shall inspect the installation of all pumps and all related items at appropriate times during installation (before and after pouring concrete support bases and confirm in writing that the assemblies have been installed in accordance with the pump supplier’s recommendations.

.12 Certification that the pumps have been correctly installed by the Contractor and that all warranties are in effect prior to start-up.

.13 Start-up and commissioning services to confirm correct operation of the new pumps over the specified speed range when operating on VFD’S as specified.

.14 Testing and commissioning of all piping & pumping systems and all related mechanical and electrical equipment and appurtenances. Testing and commissioning to be in co-ordination with other Division 15 work and Division 16 electrical work.

1.3 Shop Drawings .1 Provide shop drawings for new pumps and discharge

piping and all related mechanical equipment in the wet well and pump room including valves, couplings, fittings, pipe supports, brackets, fasteners and other equipment.

.2 Submit mill certificates for all stainless and carbon steel

pressure piping showing mechanical and chemical properties and indicating compliance with steel pipe specification requirements.

.3 Shop drawings to Section 01340.



1.4 Related Sections .1 Metals Section 05500

.2 Standby Generator Section 015834 .3 Electrical Division 16

1.5 Coordination of Pump Motor & Variable Frequency Drives

.1 The Contractor is advised that pumps and motors supplied must be co-ordinated with the selection and supply of the corresponding variable frequency drive to ensure that the continuous rated current output of each VFD in amps exceeds the maximum current in amps required by the pump motor when operating on VFD over the total specified pump flow range with the pump operating at full speed (not reduced speed). The maximum required pump motor current/power over the specified flow range shall be obtained from the pump manufacturer.

.2 The continuous rated current output in amps of each VFD

must exceed the maximum required motor current (current required operating on PWM VFD) by at least 8 % when the pump motor is operating on a PWM type of VFD under maximum load. The Contractor is advised that pump motors require more current when operating on VFD’S than on utility sinewave power. The Contractor shall be responsible for obtaining the required motor current in amps from the motor manufacturer and co-ordinating the supply of VFD’S which meet the load requirements specified.

.3 The Contractor will be required to submit certified data

with the tender that the pump motors and variable frequency drives meet the specifications and in particular that the continuous rated current output of the drives exceeds the required maximum motor by the specified amount. Drives and motors which do not meet the requirements of the specifications will not be acceptable for use on this project.

.4 See Division 16 and other specification sections for

Variable Frequency Drives.



2.0 PRODUCTS 2.1 Carbon Steel

Pipe & Fittings to 600 mm Nominal Diameter

.1 All steel pipe shall be ASTM A53, ERW, Grade B or steel pipe with equivalent or better mechanical, chemical properties with the following wall thickness: .1 100 mm to 250 mm diameter inclusive: schedule

40.

.2 300 mm diameter: standard weight, 0.375 inch wall.

.3 350 – 600 mm diameter: 0.375 inch wall thickness.

.2 Steel butt weld fittings: Steel butt weld fittings shall be in accordance with ANSI B16.9 with wall thickness to match connecting pipe wall. .1 Steel butt weld reducers as shown on the drawings.

.3 Steel Pipe Flanges: Steel pipe flanges for steel fittings shall be forged carbon steel to ASTM A181, Grade II, Class 150.

.4 Steel Pipe Flange faces: Flanges shall be flat face where connection is to flat face flanges and raised face where connection is to raised face flanges. Raised face flange facings shall be the same for connecting flanges.

.5 Steel Plate: to CAN3-G40.21-92, Grade 300W.

.6 Victaulic Couplings: Style 07

2.2 Stainless Steel Pipe & Fittings

.1 Stainless steel pipe shall be fabricated in accordance with ASTM A312/ASME SA312 with bevel ends.

.2 Stainless steel fittings shall be fabricated in accordance with ASTM A403/ASME SA403. Fittings shall be Grade WP Class W or as otherwise approved.

.3 All stainless steel pipe and fittings shall be grade 316L, Schedule 10S for wet well and suction piping. All small bore stainless piping to be schedule 40 316 stainless.

.4 Dimensions and wall thickness of pipe shall be to ASME B36.19.

.5 Dimensions and tolerances for fittings shall be to ASME B36.19.

.6 Slip on stainless steel flanges shall be to ASTM A182 and



316L material and welded to pipe inside and outside.

.7 Certification stainless steel pipe is 316L with appropriate wall thickness along with materials specification and mechanical properties shall be supplied prior to pipe fabrication.

2.3 Small Bore

Instrument and Related Piping

.1 Small bore instrument and related piping shall be 316 stainless steel piping

.2 Small bore piping 75 mm and smaller shall be schedule 40

316 threaded or flanged stainless steel pipe and in accordance with item 2.2.

2.4 Sewage Pumps .1 Self priming sewage pumps are to be Gorman Rupp V6A-

B-1 belt driven units as supplied by the John Brooks Company Ltd. in Coquitlam B.C. constructed with:

.1 Cast Iron casings; .2 200 mm x 150 mm 125 lb ASA suction and discharge

spool flanges; .3 Two vane stainless steel impeller; .4 Metal bellows seal; .5 Air Mate automatic glass filled polyester body air

release valve; .6 Seal plate and wear plate; .7 High pump temperature shut down kit; .8 Pump Drain Kit with stainless steel fittings:

.1 Supply one 30 foot long quick connect hose to be used for all four units.

.9 Cartridge type mechanical seal; .10 Suction and Discharge Gauge Panel Kits with stainless

steel pipe fittings:

.1 Discharge gauge range: 0 – +50 meters;

.2 Suction gauge range: -10 – +5 meters;

.3 Fitted to pump with pump with brackets and flexible hoses and stainless steel isolation ball valves on suction and discharge.

.2 Rated Pump Capacity: Each pump shall be rated at 66 l/s

at a total dynamic head of 25 meters. .3 Pumps are to be mounted on a continuous steel base rigidly

supporting the pump, motor, motor stand and all other pump accessories.



.4 Pump motor stand shall be designed to allow complete

removal of rotating assembly from the seal side of the pump without interference with the motor stand.

.5 Pump speed reduction from nominal 1800 rpm motor speed

to specified speed at rated capacity shall be obtained by shives and belt assembly. Estimated pump speed for rated capacity is 1470 rpm.

.6 Pump motors are to be purpose designed to operate on

VFD’s and incorporate spike resistant windings. .7 Pump base: See attached shop drawing appended to this

specification. .8 Pump Coatings: Pump, motor and pump base are to be

coated with manufacturer’s enamel finish and shall be suitable for top coating to match pump station piping colour if required.

.9 Spare Parts: Spare parts to be provided with the self-priming

pumps include the following items:

Pumps Spare Parts to be Supplied

Nos. Required

Self-Priming Sewage Pumps

One complete rotating assembly

One only

Internal Check valve Three (one for each pump)

Pivot cap Three (one for each pump)

Cleanout Cover Gasket Three (one for each pump)

Shim set Three (one for each pump)

Bearing HSG O-Ring Three (one for each pump)

Seal end Plate O-Ring Three (one for each pump)

Front wear plate Three (one for each pump)

Suction Hd Gasket Three (one for each pump)

2.5 Electric Motors Self Priming Pumps

.1 Ratings

.1 Motors for self-priming sewage pumps shall be 575



VAC, three phase, 60 Hz, 50 hp, solid shaft,

premium efficient, inverter duty motors, with nominal synchronous rpm rotational speeds specified.

.2 Motors shall be NEMA B designed squirrel cage rotor induction motors with 1.15 service factor, NEMA frame CSA approved.

.3 Motors shall be designed, rated and specifically

labelled for use with inverters meeting all requirements of NEMA MG-1, Part 31, latest edition.

.4 Motors shall have class F insulation and class B temperature rise at a 1.15 service factor when operating on sine wave power.

.5 Motor manufacturer shall provide temperature rise and service factor information when operating on PWM vector type inverter.

.6 Motors, motor shafts, keyways and shives shall be balanced (as a complete unit) to refined standards, as per Nema MG1, part 7 and shall have a peak velocity (free/rigid) not greater than 0.06 inches/second and peak velocity (resilient) not greater than 0.08 inches/second.

.2 Dual Nameplates

.1 Dual motor nameplates shall provide all NEMA design information under sine wave power as well as under VFD use.

.3 Frequency Range

.1 Pump motors shall be operable over a frequency range of 20 Hz to 60 Hz using 600 VAC, Vector Type Variable Frequency Drives sized for the motor loads associated with standard torque characteristics of a centrifugal pump.

.4 Thermal Protection

.1 Pump motors shall include thermostats designed to open on high temperature in windings and bearings



2.6 Sump Pump .1 Provide sump pump capable of handling wastewater from

washdown activities in station, complete with integral float switch control

.2 Standard of acceptance: .1 Grundfos Unilift AP35

2.7 Level Floats .1 Provide Flygt ENM-10 liquid level float switches, standard version complete with form-C contact, minimum 10 m cable (or length to suit without requiring inline splicing), strain relief connectors and cable weights for each float. Provide additional strain relief connector, Flygt Cat. No. 130598310 for each float switch.

.2 See drawings for installation of floats in pump room sump.

2.8 Ultrasonic Level Sensing Equipment

.1 Ultrasonic level monitors shall be Miltronics HydroRanger Plus c/w XPS transducer, submergence hood and extra cable. Splice cable to manufacturer’s recommendations as shown on the Contract Drawings.

.2 Transducers shall be XPS 15 c/w submergence shield and adequate cable to reach explosion proof junction box, shall be mounted to City of Vancouver specifications. See drawings for details.

2.9 Pressure

Transmitters .1 Pressure transmitters shall be industrial grade transmitter

with 4-20 ma output, factory calibrated for specified spans, rated for 600 psi working pressure and operated from a 24 VDC power supply.

.2 Zero, and span shall be field adjustable on-site using either LCD display as well as Hart communicator. Hart communications unit to be supplied with pressure transmitters.

.3 Transmitters shall be flange mounted as detailed in the

Contract Drawings.

.4 Transmitters shall have:

.1 0.2% accuracy of specified range;

.2 4-20ma output;

.3 316 stainless construction including process connections, ceramic diaphragm;



.4 Stainless steel brackets and stainless steel bolts for

pipe mounting;

.5 LCD display meter, linear, user scalable;

.6 Factory calibrated for specified span. .5 Shop drawings and complete product data are required for

all pressure transmitters.

.6 Unit assembly .1 Transmitters shall be factory spanned and calibrated

for the specified pressure spans specified within the specified pressure range and shall be factory certified and tagged to confirm the span and range of the transmitter.

.7 Span for Transmitters .1 Discharge transmitters: -14 psi to + 100 psi span.

Shall be spanned for 4 - 20ma output over a negative -14 psi to positive +100 psi span (or as instructed by the Engineer. Confirm span prior to ordering).

.2 Suction transmitters: -14 psi to + 15 psi span. shall be spanned for 4-20ma output over a (negative -14 psi to positive 15 psi (or as instructed by the Engineer. Confirm span prior to ordering).

.3 Note: Negative pressure span to be as close as possible to 0 psi absolute (-14.7 psi gauge).

.8 Contractor to confirm model number with options & submit product data for review by Engineer prior to ordering.

.9 Acceptable models: .1 Flush mount Sitrans P DS111 (7MF4133-1DA70-

1NC6-Z B21 M42.

2.10 Compound Pressure Gauge Assemblies

.1 Pressure gauges shall be liquid filled, 85 mm diameter size, 0.5% accuracy to ANSI/ASME B40.1, grade 2A, with black phenolic case.

.2 Suction Gauges:-15 psi to +15 psi.

.3 Discharge Gauges: - 15psi to +100 psi

.4 MA Stewart G2 stainless steel ball valves shall be used for



gauge isolation.

.5 All pipe and fittings in the gauge assemblies to be stainless steel.

.6 Gauge spans shall be confirmed with the Engineer prior to ordering.

.7 Gauges to be Ashcroft Duragauge or equivalent Wika or approved equal.

.8 All gauges to be fitted with an isolation diaphragm.

2.11 Magnetic Flow Meters & Local Converters

.1 The magnetic flow meter assembly shall be to the dimensions indicated on the drawings.

.1 One on the main forcemain discharge line in the pump room;

.2 The magnetic flow meter assembly shall be pulsed DC unit as indicated on the drawings including:

.1 Flanged Flow tube: 304 stainless steel;

.2 150 carbon steel flanges with drilling and dimensions conforming to ANSI 16.5

.3 Polyurethane interior liner.

.4 Two completely insulated cylindrical and diametrically opposed ANSI 316 stainless steel, or Hasteloy bullet nosed self cleaning electrodes fixed in place within the control portion of the meter tube.

.5 316ss grounding rings.

.6 Pressure ratings: ANSI Class 150 flanged unit shall have 200 psi working pressure rating with water temperature less than 20 degrees Celsius.

.7 Integral local converters/transmitters mounted on flowtubes.

.8 Flow meter sizes as indicated on the drawings.

.9 Flow meter assemblies are to be rated 0.2% accuracy instruments.

.10 Flow meter assemblies shall be complete with electrical and electronics connections to meet or exceed IEC 529 IP68 continuous submergence to 30



feet of water;

.11 Flowmeters approved for use in Class 1 Zone 1 areas.

.3 Approved Flow Meter Units (subject to meeting specification requirements):

.1 Siemens Sitrans MAG 5100 flow sensor and MAG 5000 transmitter.

.2 250 mm diameter.

2.12 Local Magnetic

Flow Meter Transmitters

.1 Local magnetic flow transmitters shall be integral part of the flow meter and shall have the following minimum features:

.1 Two (2) line LCD touch display to simultaneously indicate rate of flow in engineering units and total flow.

.2 Bi-directional flow, indication and totalization in both forward and reverse direction.

.3 Isolated 4-20 ma DC output into 750 ohms

.4 Pulse output, integral alarms and discrete output

.5 Noise reduction algorithms

.6 Self diagnostics

.7 Program edit protection

.8 All memory data to be stored in non-volatile memory for 10 years without battery back-up.

.9 Automatic zero stability and a signal: media noise factor based on the square root of the multiplication of the magnetizing current (Amps peak to peak) and coil exiciter frequency (HZ) capability of nominally 4.0

.10 System accuracy at reference conditions of +/- 0.5% of reading for >.3 m/s or +/- 0.0015m/s for <0.3m/s.

.11 Digital full scale mean velocity adjustment from 0.25 m/s to 10m/s with media conductivities down to 1 micromho/cm

.12 Convertors shall be factory calibrated for following flow span:



.13 Discharge flowmeter: 0 – 200 l/s.

.14 Power supply: 120VAC.

2.13 Grout for Pipe

Supports & Piping Inserts

.1 Grout for base elbow and pipe supports shall be a high strength non shrink grout as detailed on the drawings. All grout shall be Masterflow 928.

2.14 Pipe Linings & Coatings for Carbon Steel Pipe & Related Items

.1 Pipe linings and coatings for steel pipe shall be shop applied following fabrication and all welding.

.2 All steel pipe, fittings, flanges, couplings, fasteners and all attached accessories shall be coated and lined to pipe standards except where noted otherwise.

.3 Pipe linings and coatings shall conform in all respects with the following AWWA standard:

.1 AWWA C210 - 84: "Liquid epoxy coating systems for the interior and exterior of steel water pipelines."

.2 Colour: green (confirm with Owner).

.3 Top coat: two coats urethane to match existing colour or colour as specified by Owner.

.4 The supplier will be required to provide certification that the lining and coating material meets the required specification and that the application contractor is a qualified AWWA applicator and has proper facilities.

.5 Acceptable Products:

.1 Interior pipe linings: ICI Devoe - Bar Rust 236 or approved equal with black colour;

.2 Exterior pipe coatings: ICI Devoe - Bar Rust 236 or approved equal;

.3 Exterior pipe top coat: ICI Devoe - Devthane 379 or approved (confirm colour with Owner).

.4 Coatings and linings do not require NSF 61 approval.

.6 Fabricated metal items shall also be coated using same products (and colour) used for pipe coatings. See Section 05500 and 09900.

2.15 Bolts & Nuts for Joining Steel &

.1 Where supplied as an integral part of manufactured products including: couplings, joint restraint assemblies and



Non Stainless Components

similar items:

.1 Bolts and nuts to be high strength low alloy steel to AWWA C111.

.2 All bolts and nuts shall have hexagonal heads and shall be zinc coated. Bolts shall not protrude more than 1/2 inch through nuts.

.2 Low Strength Bolts and Nuts for use in joining mechanical components including flanges and similar products not covered under manufactured products (to be used unless otherwise specified):

.1 Bolts to be carbon steel, Grade B to ASTM A307, heavy hex style, hot dip galvanized to ASTM A153, zinc plated to ASTM B633 or cadmium plated to ASTM B766. Bolt sizes to AWWA C110.

.2 Nuts and Washers: Nuts to be heavy hex carbon steel, to ASTM A563 Grade A, Washers to be flat hardened steel to ASTM F436. Nuts and washers to be zinc plated to ASTM B633 or cadmium plated to ASTM B766.

.3 Field paint all nuts and bolts after installation using same paint materials used for pipe coatings.

.4 Zinc plated nuts and bolts do not require painting.

2.16 Bolts & Nuts for Joining Stainless Steel to Non Stainless

.1 Bolts to be B8M, 316L stainless steel to ASTM A 193.

.2 Nuts and washers to ASTM A 194 8M or approved equal 316 material grade bolt.

2.17 Flange Gaskets .1 Flange gaskets for flat face flanges shall be full face type, manufactured from black natural rubber with a layer of cotton on both sides.

.2 No asbestos gaskets are allowed.

2.18 Pipe Supports & Brackets

.1 Pipe supports and brackets shall be provided as shown on the drawings.

.2 All pipe supports and brackets shall be hot dip galvanized or painted using same materials and requirements as pipe coatings.

.3 Pipe supports shall be installed using approved procedures for:



.1 grouting;

.2 leveling and setting of pipe supports;

.3 snugging up of pipe support to induce small amount of compression into support and then using wedges to maintain setting until anchor bolts and anchor bolt inserts are installed.

.4 installation of anchor bolts and inserts.

2.19 Resilient Eccentric Seated Plug Valves – Manually Operated

.1 Plug valves for use in the sewage pump room or wet area piping shall be ductile iron, lubricated, flanged with totally enclosed manual worm gear actuator operator (permanently lubricated) with bronze bushings- meeting following criteria:

.1 Round or rectangular ports with port equal to 100%

of pipe area on the suction line valves; 90% acceptable for others.

.2 Welded nickel seating;

.3 One-piece valve plug covered with moulded resilient facing of Buna N with 70 durometer rating;

.4 Grit seals;

.5 Thrust bearings, stainless steel shaft, bronze cartridge or self-adjusting packing type shaft seal per AWWA C504 and C507.

.6 Confirm gear actuator mounting position with Engineer.

.7 Proof of design test, per AWWA C504 for leakage.

.8 Valve shall be rated for 175 psi working pressure with drop tight shot-off in both flow directions.

.9 Valve interior to be lined with 4-6 mils of a two part hi-build epoxy.

.10 Valve exterior to be prime coated by manufacturer and shop painted by the Contractor to same standards and colour as fabricated pipe.

.11 Acceptable plug valves: .1 Dezurik; .2 Valmatic; .3 Pratt;

2.20 Swing Check

Valve – Anti Surge Type with Flush Device & Position Indicator

.1 Check valve shall be purpose designed to minimize surge by incorporating a quick closing spring assist design and reduced flapper angle.

.2 Ductile iron flanged body and cover with bronze flap ring and seat ring.

.3 Shaft shall be one piece stainless steel (type 304 or approved equal) with o-ring seals and shall be sufficiently



extended from the body of the valve to allow the addition of external closing devices.

.4 The disk and arm shall be cast iron and the disk shall be fitted with a replaceable bronze seat.

.5 All internal components shall be replaceable in the field without removing the main valve from the pipeline.

.6 The valve shall be fitted with: .1 Outside screw device under valve body to lift flapper

for back flushing and: .2 A flap position indicator on the top of the valve body

to indicate any position of the valve from fully open to fully closed.

.7 The valve shall be flanged with a minimum pressure rating

of 1035 kPa.

.8 Acceptable valves: .1 Valmatic Surgebuster;

.9 Valve exterior to be prime coated by manufacturer and shop painted by the Contractor to same standards and colour as fabricated pipe.

2.21 Ball Valves (full

bore) .1 See drawings for requirements.

.2 All ball valves (unless specified otherwise) shall be 316

stainless steel Model G2 as supplied by M.A. Stewart or approved equal (500 psi working pressure).

2.22 Air Valves .1 Air valves shall be as indicated on the drawings.

.2 Air valves shall be combination air/vacuum valves.

.3 Air valves shall have stainless steel bodies with stainless

steel trim and floats.

.4 Air valves shall be rated for 145 psi working pressure.

.5 Air valves shall have 80mm (3”) flanged inlet and outlet.

.6 Air valves inlets and outlets shall be connected to station piping via flanges. Outlet shall be piped to drain as indicated on the drawings.

.7 Acceptable manufacturer: .1 Vent-O-Mat RGX



.2 Approved Equivalent

2.23 Flexible Coupling .1 Flexible couplings on forcemain and inlet pipe to be EBAA

Iron Flex-Tend Double-Balled; Force Balanced Flexible Expansion Joint as per the Contract Drawings.

3.0 EXECUTION 3.1 General .1 Prior to all work in this section, the Contractor shall become

thoroughly familiar with the site and all portions of the work within this section and other related sections, including electrical work.

3.2 Piping Layout and Installation

.1 Fabricate all pipe systems as detailed on the drawings.

.2 Welding shall be performed only by qualified companies and welders certified under CSA Specification W47.1 for the type of welding to be employed during the work.

.3 All piping shall be fabricated, welded, assembled, examined, inspected and tested in accordance with the requirements of ANSI/ASME code for pressure piping 31.3.

.4 The Contractor shall be responsible for taking accurate measurements in the pump station to ensure accurate fabrication and exact fit of all piping and closure pieces required for the pump station piping and pipe specials. Piping fabrication shall involve both shop and field work with pipe closure pieces field fit with final fabrication in the shop to ensure proper fit and alignment of all piping closures.

.5 Discharge piping for the station pumps shall not be finish bolted to the pump discharge head flange until discharge head and motor have been installed and the alignment and fit of pump components has been checked and approved by the pump supplier to ensure no residual stresses are induced in the pump or attached piping systems.

.6 Pump discharge piping shall connect to pump discharge elbow with correct alignment without displacement or torque on piping or pump and with no residual stresses induced in the pump or attached piping systems.

.7 All steel pipe welds are to be full penetration butt welds.

3.3 Welding Requirements for Stainless Steel (Shop & Field)

.1 Welding preparation and post treatment to be carried out only by certified welding shops experienced in stainless steel welding and with qualified and certified welders.

.2 Welding procedure specifications (WPS) proposed for use must be provided for all shop and field welds including full penetration but welds and fillet welds. Welders must be



certified to carry out such welding procedures and welder performance qualifications provided prior to piping fabrication.

.3 Welding of stainless steel shall be done using gas shielded processes (GTAW), (GMAW) unless otherwise approved.

.4 Welding consumables shall be in accordance with AWS for covered electrodes or bare wires.

.5 Pipes shall be purged prior to welding to minimize weld defects and weld discolouration.

.6 All piping shall be thoroughly cleaned and degreased prior to welding.

.7 All welds shall be full penetration, free of cracks, overlaps, cold laps and other defects. Weld defects shall be removed by acceptable and approved methods which do not impair the corrosion resistance of the stainless steel or impede passivation.

.8 All completed pipe welds shall be subject to pickling to remove heat tint and oxide layer.

.9 Reference Specifications:

.10 ASME Boiler and Pressure Vessel Code, Section VIII, Pressure Vessels;

.11 ASTM A380-99e1 – Cleaning, Descaling and Passivation Treatment for Stainless Steels;

.12 AWS 5.4 and 5.9 for electrodes

3.4 Installation of Pumping Equipment (including mixers):

.1 Install the pumping equipment in accordance with the manufacturers recommendations, data sheets, drawings or applicable shop drawings.

.2 Support, anchor and brace all pumping, piping and assemblies adequately and securely as shown on the drawings and/or directed by the Engineer.

.3 Clean all flanges, gaskets and other connection fittings.

.4 Do not fix piping assembly in place until all components are properly aligned and installed.

.5 Piping assemblies shall permit normal pipe contraction and expansion without undue strain on any portion.

.6 Ensure no foreign material is left in piping runs.



.7 Use approved methods for grouting between discharge

elbow and floor and ensure pump and discharge elbow is level and free of distortion or unbalanced forces prior to grouting.

.8 Install, fit and grout all pipe supports to same standards and procedures as pumps.

.9 Touch up shop or field applied paint any surfaces damaged during installation or other work activities.

3.5 Concrete Pump Bases

.1 Concrete pump bases shall be constructed as an integral unit and installed as shown on the drawings including the fabrication and setting of anchor bolts prior to installation of fabricated pump and motor base.

.2 Pump base shall be sized in accordance with the contract

drawings, pump shop drawings and in accordance with the pump manufacturer’s recommendations.

.3 Pump bases shall include reinforcing dowels and concrete

encasement as shown on the drawings.

3.6 Grout Fabricated Pump and Motor Base Plate

.1 Grout between fabricated pump base and concrete foundation pad shall be a high strength non shrink grout as detailed on the drawings. All grout shall be Masterflow 928.

.2 Grouting shall be in strict accordance with the contract

documents and with the recommendations of the pump supplier and the grout supplier.

.3 All personnel employed by the Contractor for installing

pumps, motors, piping and pump foundations shall be experienced and qualified in the installation of rotating equipment foundations.

3.7 Installation,

Assembly & Fitting of Pumping Equipment

.1 Protect all pumping equipment during installation. .2 Any damage to the pumping equipment shall be corrected

by repair or replacement as directed by the Engineer. .3 Install the pumping equipment in accordance with the

manufacturers recommendations, data sheets, drawings or applicable shop drawings.

.4 Support, anchor and brace all pumping, piping and

assemblies adequately and securely as shown on the drawings and/or directed by the Engineer.

.5 Clean all flanges, gaskets and other connection fittings.



.6 Do not fix piping assembly in place until all components are

properly aligned and installed. .7 Piping assemblies shall permit normal pipe contraction and

expansion without undue strain on any portion. .8 Ensure no foreign material is left in piping runs. .9 Use approved methods for grouting between pump and

motor fabricated base plate and the concrete foundation to ensure pump is level and free of distortion or unbalanced forces prior to grouting. Grout shall be uniformly installed under base plates to provide uniformly distributed support. Grout forms shall be used for grouting.

.10 Install, fit and grout all pipe supports to same standards and

procedures as pumps. .11 Touch up shop or field applied paint any surfaces damaged

during installation or other work activities.

3.8 Pump Operating Requirements

.1 The new pumps will be operated on VFD`s and may operate on PID wet well level loops or on specified wet well levels.

.2 Pump operating requirements and a description of operations will be confirmed by the Engineer prior to testing and commissioning including written instructions on level settings and required pump discharge rates for the new pumps.

3.9 Application of

Pipe Linings & Coatings (& for other specified metal items)

.1 Surface preparation shall be to SSPC SP 10 or as recommended by the lining manufacturer or required by AWWA standards or NSF requirements for potable water use.

.2 The lining and coating material shall be applied in strict accordance with the manufacturer's recommendations. Final DFT thickness of cured linings and coatings shall not be less than 18 mils as determined by shop inspection.

.3 Linings and coatings shall be heat cured.

.4 Linings and coatings shall be tested for imperfections as specified by the governing AWWA specifications. Any deficiencies found shall be repaired to specification requirements.

.5 Linings and coatings shall be applied after all shop welding



for the pipe mitres has been completed. Top coat to be applied after coatings have cured and colour specified by the Owner.

.6 Field application of linings and coatings will not be permitted except for field touch-up of damaged surfaces or as directed by the Engineer.

3.10 Pressure Testing of Piping Systems

.1 All station piping and/or piping assemblies including pipe spools, valves, flanges, gaskets and related appurtenances shall be pressure tested to 100 psi water pressure.

.2 The pipe assembly will be deemed to have passed the pressure test when the pipe under test pressure maintains the 100 psi pressure without drop for a 2 hour period and does not require any make-up water to return the pressure to 100 psi.

.3 Should the piping assembly fail to meet the pressure test requirements, the pipe shall be repaired where leakage may be occurring and then retested. This procedure shall be repeated until the pressure test requirements are met.

.4 Co-ordinate pipe and valve equipment test with other Division 15 and Division 16.

3.11 Flushing of Piping Systems

.1 Pump station piping and components shall be flushed in accordance with the City of Vancouver requirements or as directed by the Engineer.

3.12 Testing & Commissioning of Pumping Systems

.1 Following all mechanical and electrical work the Contractor shall carry out adequate testing and commissioning of all installed components to adequately confirm satisfactory and correct operation of all components over a range of operating conditions. The Engineer will assist the Contractor in setting up the testing and commissioning activities but the Contractor will be responsible for carrying out all activities.

.2 Testing of pumping systems shall be done jointly with the testing of electrical power and control systems.

.3 Mechanical and Electrical Components to be tested include:

.1 Piping systems including couplings and spool pieces.

.2 Existing level sensor, gauges and switches which may have been disturbed during construction.



.3 All electrical power and control systems

.4 VFD’s

.4 Testing of pump start/stop and alarm points to confirm the correct operation and sequence of operations of the pumping system under normal and alarm conditions including:

.1 Start levels

.2 Stop levels

.3 High level alarms.

.4 Low level alarms.

.5 VFD operating levels

.6 PID parameters and set points

.5 The Contractor shall arrange and pay for the onsite services for equipment suppliers including pumps, VFD’S (see division 16), flow meter, pressure transmitter. Onsite service of up to (1 ½) one and one half days for each supplier shall be provided by the Contractor as well as any additional time required to correct any deficiencies.

.6 Any test items which overlap with the district work, shall be tested jointly with both present.

3.13 Test Reports .1 The Contractor shall prepare a test report based on the testing and commissioning work at the site and shall include all calibration calculations, all set points and observed readings.

.2 The test reports shall include confirmation of manufacturers and suppliers recommended procedures for installation, testing and calibration. The following data shall also be provided:

.1 Pump flows;

.2 Discharge pressures;

.3 Liquid levels in wet wells;

.4 VFD speeds to obtain required flows;

.5 PID parameters;

.6 Other information requested by the Engineer.



.3 Test report data shall be included in the Operations and

Maintenance Manuals. See section 01740.

END OF SECTION
