ed0733 a 50a10-5 - drs-00-vbr-tr-fwb-006_a

L00 07.05.2014 For Approval CK MOS

REV. DATE REASON FOR ISSUE PREP. CHECKED APPROVED

FOSTER WHEELER BİMAŞ DOCUMENT NUMBER

ED0733A-50A10_5

DRS-00-VBR-TR-FWB-006 TYPE A 07.05.14

Rev. Qua. Sheet No Doc.

Sign Date DERWEZE

SIMPLE CYCLE POWER PLANT

APPROVED SECTION / AREA

Stage Sheet No Total Sheet No

CHECKED - 1 9

PREPARED GENERAL REQUIREMENTS FOR STEAM TRAPS

FOSTER WHEELER BİMAŞ

GENERAL NOTES AND VENDOR DOCUMENTS FOR VESSELS,

TRAYS AND AUXILIARIES

ÇALIK Doc. No. : DRS-00-VBR-TR-FWB-006

Page : 2 of 9 Date : 07.05.2014 ÇALIK Revision : A

FWB Doc. No. : ED0733A-50A_5

FWB Rev. No. : L00


CONTENTS

I. GENERAL

II. CODES , STANDARDS AND SPECIFICATIONS

III. DESIGN AND SPECIAL REQUIREMENTS

IV. STEAM TRAPS MARKING AND IDENTIFICATION

V. QUALITY CONTROL

VI. PROTECTIVE COATING AND END PROTECTION

VII. ADDITIONAL TECHNICAL REQUIREMENTS

VIII. DOCUMENTATION REQUIREMENTS






FWB Rev. No. : L00


I. GENERAL

A. This Job Specification covers requirements for steam traps and compact manifolds and shall be considered as part of the requirements for the steam traps and compact manifolds covered by the associated Material Requisition(s).

B. Any conflict between this standard and any other specifications referred to herein or in the associated Material Requisition(s) shall be reconciled with Purchaser before proceeding.

C. List of Abbreviations End Connections

RF Raised Face FF Flat Face RTJ Ring Type Joint LG Large Groove LT Large Tongue SG Small Groove ST Small Tongue LF Large Female LM Large Male SF Small Female SM Small Male SJ Solder Joint BW Butt Weld SW Socket Weld THDD/TH Threaded SCRD Screwed

II. STANDARDS AND SPECIFICATIONS A. All materials shall comply with material specification/norm specified in Material

Requisition.

B. All steam traps shall comply with the requirements quoted on the relevant Material Requisition together with any additional requirement included in this standard.

C. It shall be assumed by Purchaser that, unless Vendor makes specific exceptions in his quotation, all equipment supplied shall comply exactly with the requirements specified in the Material Requisitions and Specifications attached thereto.

D. Vendor must clearly state in his quotation all instances in which the steam trap offered deviates from the Material Requisition Specification; including, but not limited to, all differences in duty, mechanical design, codes of fabrication or design, materials of construction and extent of supply.

E. Codes & standards for the requirements to be applied on steam traps and compact manifolds shall be the latest addition of the following:

API Std. 598 Valve Inspection and Testing ASME B1.20.1 Screw Threads-Pipe Threads, General Purpose (Inch) ASME B16.5 Pipe Flanges and Flanged Fittings – NPS ½ Through NPS 24 ASME B16.10 Face to Face & End to End Dimensions of Valves. ASME B16.11 Forged Fittings, Socket Weld and Threaded ASME B16.25 Buttwelding Ends ASME B16.34 Valves – Flanged, Threaded and Welding End






FWB Rev. No. : L00


MSS SP55 Quality Standard for Steel Casting for Valves, Flanges and Fittings and other Piping Components. Visual Method for Evaluation of Irregularities

ASME B31.1 Power Piping ASME B31.3 Process Piping ISO 6552 Automatic Steam Traps – Definition of Technical TermsMSS SP

25 Marking system for valves, fittings, flanges and unions III. DESIGN AND SPECIAL REQUIREMENTS

A. Steam Traps Body Materials

STEAM TRAP

MATERIAL FORGED CONSTRUCTION

(note 3) C.S. ASTM A105 S.S. 304 ASTM A182 Gr F304 S.S. 304 L ASTM A182 Gr F304 L S.S. 316 ASTM A182 Gr F316 S.S. 316 L ASTM A182 Gr F316 L S.S. 321 ASTM A182 Gr F321 S.S. 347 ASTM A182 Gr F347 1.25% Cr 0.5%Mo ASTM A182 Gr F11 Cl 2 2.25% Cr 1%Mo ASTM A182 Gr F22 Cl 3 5% Cr 0.5%Mo ASTM A182 Gr F5 9% Cr 1%Mo-V ASTM A182 Gr F91

Notes:

1) Steam traps and compact manifolds shall be certified as suitable for the full range of design pressure/temperature given by ASME B.16.34 for the material and rating specified in Material Requisition .

2) Alternative cast construction may be proposed by Vendor. Acceptance of cast construction is subject to additional technical requirements.

B. Flanged Cover and bolting

1. The type of facing of flanged joints shall be equal or superior to the end flange facing.

2. Unless otherwise indicated on Material Requisitions the body to bonnet gaskets shall be as follow as per Manufacturer Standard. Use of asbestos is prohibited.

3. Unless otherwise indicated on Material Requisitions, the bolting material for ferrous steam traps shall be:






FWB Rev. No. : L00


STEAM TRAP MATERIAL

BOLT MATERIAL NUT MATERIAL

C.S. ASTM A193 Gr B7 ASTM A194 Gr 2H Alloy Steel ASTM A193 Gr B16 ASTM A194 Gr 2H S.S. ASTM A193 Gr B8 Cl 2 ASTM A194 Gr 8

C. Flanged Steam Traps

1. Steam traps to "MANUFACTURER'S STANDARDS" shall have face to face dimensions to ASME B16.10 wherever possible. Such steam traps face to face dimensions shall be subject to the acceptance of Purchaser.

2. When face to face dimensions of a steam traps do not conform to a ASME , API, MSS or BS Standard the Manufacturer must specifically highlight this in his quotation.

3. For flanged steam traps, the gasket surface finishing shall be per ASME B16.5.

D. Screwed Steam Traps and Tapped Connections in Steam Traps

1. Steam traps or compact manifolds threaded ends and tapped connections shall be threaded female in accordance to ASME B1.20.1

E. Welding End Steam Traps

1. The ends of socket weld steam traps and compact manifolds shall be in accordance with ASME B16.11.

2. The ends of butt weld steam traps and compact manifolds shall be to ASME B16.25. The outer diameter and wall thickness of bevel ends shall be as stated on Material Requisition.

IV. STEAM TRAPS MARKING AND IDENTIFICATION

A. The marking of steam traps and compact manifolds can be provided as per Manufacturer Standard. This shall be hard-marked or stamped on a non-corrodible metal tag which shall be securely attached to the steam trap and compact manifolds (by screws or rivets). For forged steam traps, tags may be wired to the body.

B. Proprietary steam traps and compact manifolds not ordered to a standardized specification shall be marked with the rating, material and size as stated on the Material Requisition together with the Manufacturer's name and Purchase steam traps /compact manifolds numbers as specified above.

Butt welded end steam traps and compact manifolds, in addition to other required markings, shall have the pipe wall schedule (e.g., 40, 80S, STD, XXS) marked as suffix in Company’s steam trap or compact manifold number. Marking identification shall be in accordance with ASME B36.10 or ASME B36.19.






FWB Rev. No. : L00


V. QUALITY CONTROL

A. No grease shall be used during steam traps and compact manifolds assembly and testing as specified by API 598.

B. Inspection

All steam traps and compact manifolds covered by the Material Requisition are subject to inspection both during the manufacture and before shipment ,by Purchaser and/or its Client or an Approved Inspection Authority.

C. Normal Tests

1. All steam traps and compact manifolds, including those in accordance to Manufacturer's Standards, shall be tested by Manufacturer in accordance with applicable code, and in particular:

1. Check of chemical and mechanical properties of the material used 2. Dimensional check 3. Pressure test of body bonnet

2. The hydrostatic test liquid shall be water with the addition of wetting agent.

3. When stainless steel steam traps are to be tested using water as the test liquid, potable water with a chloride content less than 30 ppm shall be used to obviate stress corrosion cracking. After test the steam traps shall be carefully drained and air blown.

4. Ends of forged BW steam traps and compact manifolds shall be 100% MT or LP examined.

5. Welds on nippled SW steam traps and compact manifolds shall be 100% MT/LP examined.

6. If any, flange to body socket or butt weld joints shall be 100% MT or LP examined

D. Additional Test

The following additional test shall be made only if expressly mentioned in this Eng. Std. or in Material Requisition:

1. Radiographic examination of the weld joining the flanges to the body of the steam traps.

2. Magnetic particle or liquid penetration examination of steam traps body.

E. Final Test

1. Purchaser reserve the right to inspect the steam traps and and compact manifolds including the use of regular inspection equipment.

F. Certification

1. It is the Vendor's responsibility to ensure that all materials used in the manufacture of steam traps and compact manifolds comply with the requirements of the relevant specifications.






FWB Rev. No. : L00


2. The Vendor shall keep a record of the certified chemical and mechanical properties of the material used and certificates shall be supplied when required by the relevant specifications or when specified on the purchase documents. For pressure parts (bodies, bonnets, covers and bolting for body/bonnets joints) material certificates shall be in accordance with EN 10204-3.1 (–if the manufacturer is ISO 9001 approved by a European Accredited Notified Body) or EN 10204-3.2 (if the manufacturer is not ISO 9001 approved) is required.

3. The Supplier must classify and mark alloy steam traps in accordance to material Colour Coding and is responsible for the correct application of colour bands before shipping said materials to shop fabricator or fields. It is Vendor responsibility to select colour bands and carry out P.M.I. examination.

VI. PROTECTIVE COATING AND END PROTECTION

A. All un-machined exterior surfaces of carbon steel and low alloy steam traps and compact manifolds shall be painted per Manufacturer Standard paint suitable for Refinery or Industrial Atmospheric conditions.

B. All machined or threaded surfaces (C.S. and A.S.), with a nominal chemistry of 12 Cr and below subject to atmospheric corrosion during shipment or subsequent storage shall be coated with Manufacturer's standard rust preventive suitable for an exposure period of twelve months, to a normal industrial environment. This protective must be easily removable with a petroleum solvent.

C. End Protection - steam traps with threaded or socket weld ends shall have the ends protected with metal, wood, or plastic plugs.

D. Cover for the protection of gasket surfaces of end flanges, and for the protection of welding ends shall be either: metal of 3,5 mm. min. thickness, hardboard, or solid wood.

E. Although austenitic stainless steels and high nickel alloy materials do not require painting, they must not come into contact with any substance that may contain chlorides; temporary protection for shipping has to be suitably provided by Vendor.

F. Inside protective coatings like Enamel “Japanese black” are not allowed.






FWB Rev. No. : L00


VII. ADDITIONAL TECHNICAL REQUIREMENTS

CASTINGS ORIGIN Wherever alternative casting construction is approved by FWI/Purchaser for steam traps, the Vendor shall mandatorily declare the origin of castings foundry in the quotation for FWI/Purchaser acceptance.

REQUIREMENTS FOR STEAM TRAPS ASME B31.1 Where ASME B31.1 is indicated on the Material Requisition, steam traps shall be supplied in accordance with the following requirements 1. LTCS supplied as alternative to CS is not acceptable 2. All “L” grades stainless steels as alternative to other grades or dual certified stainless steels are not acceptable 3. All pressure containing parts (bolting included) shall be supplied conforming to ASME specifications in accordance to ASME B31.1. Materials conforming to ASTM specifications proposed as alternative to ASME SA material (e.g. “ASTM A105” vs. “SA-105”) may be considered acceptable provided that the requirements of ASME B31.1 para. 123.2.2 will be applied

COMPACT MANIFOLDS INSULATION Each compact manifold shall be provided of insulation jacket; the model supplied can be according to Manufacturer Standard. Insulation jackets supplied shall be suitable for the same operating temperature of steam traps specified for steam tracing service (for applicable operating temperature see para VII.E)






FWB Rev. No. : L00


OPERATING AND DESIGN DATA

The proper operation of steam traps must be guaranteed by the Supplier in consideration of the design/operating conditions reported in the following table:

Steam Trap Service

Steam Trap Type

Steam Trap Rating/

Steam Traps End connections

Steam Trap Body Material

Service

Normal operating temp. [°C] in/out

Normal operating pressure [barg] upstr./downstr.

Minimum operating pressure [barg]

Design pressure [barg]

Design temperature [°C]

OPERATING AND DESIGN DATA

VIII. DOCUMENTATION REQUIREMENTS FOR STEAM TRAPS The Vendor shall supply the required technical documentation (e.g. steam traps and compact manifolds drawings, technical datasheets, instruction and maintenance manuals, WPS & PQR’s) according to the prescriptions and time schedule provided in the attached Eng. Std. 59B9

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