40 05 23 - Stainless Steel Process Pipe And Tubing.pdf

40 05 23 - STAINLESS STEEL PROCESS PIPE AND TUBING

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SECTION 40 05 23 - STAINLESS STEEL PROCESS PIPE AND TUBING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Stainless-steel pipe and fittings.

2. Stainless-steel tube and fittings.

3. Accessories.

B. Related Requirements:

1. Section 40 05 06 - Couplings, Adaptors, and Specials for Process Piping: Pipe penetrations, restrained joints, flexible connections, expansion joints and loops, and sleeve-type couplings.

2. Section 40 05 07 - Hangers and Supports for Process Piping: Hangers, anchors, sleeves, and sealing of piping to adjacent structures.

3. Section 40 05 51 - Common Requirements for Process Valves: Common product requirements for valves for placement by this Section.

1.2 REFERENCE STANDARDS

A. American Welding Society:

1. AWS D1.1/D1.1M - Structural Welding Code - Steel.

B. ASME International:

1. ASME B1.20.1 - Pipe Threads, General Purpose, Inch.

2. ASME B1.20.2.M - Pipe Threads, 60 deg. General Purpose (Metric).

3. ASME B16.1 - Cast Iron Pipe Flanges and Flanged Fittings, Classes 25, 125, 250 and 800.

4. ASME B16.5 - Pipe Flanges and Flanged Fittings: NPS 1/2 through NPS 24 Metric/Inch Standard.

5. ASME B16.9 - Factory-Made Wrought Buttwelding Fittings.

6. ASME B16.11 - Forged Fittings, Socket-Welding and Threaded.

7. ASME B16.20 - Metallic Gaskets for Pipe Flanges: Ring-Joint, Spiral-Wound, and Jacketed.

8. ASME B16.21 - Nonmetallic Flat Gaskets for Pipe Flanges.

9. ASME B31.3 - Process Piping.

10. ASME Boiler and Pressure Vessel Code (BPVC), Section IX - Welding and Brazing Qualifications.

C. ASTM International:

1. ASTM A182/A182M - Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High- Temperature Service.

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2. ASTM A193/A193M - Standard Specification for Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications.

3. ASTM A194/A194M - Standard Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High Temperature Service, or Both.

4. ASTM A269/A269M - Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service.

5. ASTM A312/A312M - Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes.

6. ASTM A351/A351M - Standard Specification for Castings, Austenitic, for Pressure- Containing Parts.

7. ASTM A403/A403M - Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings.

8. ASTM A479/A479M - Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels.

9. ASTM A632 - Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small Diameter) for General Service.

10. ASTM A789/A789M - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service.

11. ASTM A813/A813M - Standard Specification for Single- or Double-Welded Austenitic Stainless Steel Pipe.

12. ASTM A814/A814M - Standard Specification for Cold-Worked Welded Austenitic Stainless Steel Pipe.

13. ASTM D3308 - Standard Specification for PTFE Resin Skived Tape.

D. NSF International:

1. NSF 61 - Drinking Water System Components - Health Effects.

2. NSF 372 - Drinking Water System Components - Lead Content.

1.3 COORDINATION

A. Section 01 31 13 – Project Coordination: Requirements for coordination.

B. Coordinate Work of this Section with piping and equipment connections as specified in other Sections and as indicated on Drawings.

1.4 PREINSTALLATION MEETINGS

A. Section 01 31 19 – Project Meetings: Requirements for preinstallation meeting.

B. Convene minimum one week prior to commencing Work of this Section.

1.5 SUBMITTALS

A. Section 01 33 00 - Submittal Procedures: Requirements for submittals.

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B. Product Data: Submit manufacturer information on pipe materials, tube materials, and fittings.

C. Shop Drawings: Indicate layout of piping systems, including equipment, critical dimensions, flange locations, sizes, and materials lists.

D. Manufacturer's Certificate: Certify that products meet or exceed specified requirements.

E. Welder Certificates: Submit welders' certification of compliance with ASME BPVC, Section IX – Boiler, verifying qualification within previous 12 months.

1.6 CLOSEOUT SUBMITTALS

A. Section 01 77 00 - Closeout Procedures: Requirements for submittals.

B. Project Record Documents: Record actual locations of valves, fittings, and appurtenances.

1.7 QUALITY ASSURANCE

A. Permanently mark each length of pipe with manufacturer's name or trademark, and compliance with standards.

B. Materials in Contact with Potable Water: Certified according to NSF 61 and NSF 372.

C. Maintain one copy of each standard affecting Work of this Section on Site.

1.8 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this Section with minimum three years' documented experience.

B. Installer: Company specializing in performing Work of this Section with minimum three years' experience.

C. Welders: ASME qualified within previous 12 months for employed weld types.

1.9 DELIVERY, STORAGE, AND HANDLING

A. Section 01 61 00 - Product Requirements: Requirements for transporting, handling, storing, and protecting products.

B. Inspection: Accept materials on Site in manufacturer's original packaging and inspect for damage.

C. Store materials according to manufacturer instructions.

D. Protection:

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1. Protect materials from moisture and dust by storing in clean, dry location remote from construction operations areas.

2. Protect piping and appurtenances by storing off ground.

3. Provide additional protection according to manufacturer instructions.

1.10 AMBIENT CONDITIONS

A. Section 01 50 00 - Temporary Facilities and Controls: Requirements for ambient condition control facilities for product storage and installation.

B. Minimum Conditions: Do not store or handle uninstalled lined pipes or fittings at temperatures below zero degrees F.

1.11 EXISTING CONDITIONS

A. Field Measurements:

1. Verify field measurements prior to fabrication.

2. Indicate field measurements on Shop Drawings.

PART 2 - PRODUCTS

2.1 STAINLESS-STEEL PIPE AND FITTINGS

A. General Service Piping (AIR):

1. Type:

a. Welded or Seamless; comply with ASTM A813/A813M.

b. Class: SW; comply with ASTM A814/A814M.

2. Schedule: 5S.

3. Grade: Type 304L.

4. Dimensions: Comply with ASTM A312/A312M.

B. Fittings:

1. Type:

a. Piping 2 Inches and Smaller: Socket welding.

b. Piping 2-1/2 Inches and Larger: Butt welding.

2. Dimensions: Comply with ASTM A312/A312M.

3. Threaded Fittings:

a. Comply with ASME B16.11 and ASTM A182/.

b. Grade: Type 304L.

c. Threads: Comply with ASME B1.20.1.

4. Butt-Welding Fittings:

a. Comply with ASTM A403/A403M.

b. Grade: Type 304L.

c. Class: CR; comply with ASME B16.9.

5. Socket-Welding Fittings:

a. Comply with ASTM A403/A403M.

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b. Grade: Type 304L.

c. Class: WP-W; comply with ASME B16.11.

6. Flanged Fittings:

a. Type: Lapped.

b. Class: 150.

c. Comply with ASTM A182/A182M.

d. Grade: Type 304L.

e. Facing and Drilling: Comply with ASME B16.5, with flat face

f. Backing Flanges:

1) Material: Stainless steel.

2) Class: 150.

3) Comply with ASTM A351/A351M.

4) Type: Van stone.

5) Drilling: Comply with ASME B16.1.

7. Flanged Connections: As required to connect stainless-steel piping to fittings and equipment.

2.2 STAINLESS-STEEL TUBE AND FITTINGS

A. Tube:

1. Type: Seamless.

2. Comply with ASTM A269/A269M, A632, A789/A789M.

3. Grade: Type 304L.

B. Fittings:

1. Threaded:

a. Comply with ASTM A182 and ASME B16.1.

b. Grade: Type 304L.

c. Threads: Comply with ASME B1.20.1.

2. Butt-Welding Fittings:

a. Comply with ASTM A403.

b. Grade: Type 304L.

c. Class: CR.

3. Socket-Welding Fittings:

a. Comply with ASTM A403.

b. Grade: Type 304L.

c. Class: WP-W.

4. Flanged Fittings:

a. Type: lapped.

b. Class: 150.

c. Comply with ASTM A182.

d. Grade: Type 304L.

e. Facing and Drilling: Comply with ASME B16.5, with flat face.

f. Backing Flanges:

1) Material: Stainless steel.

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2) Class: 150.

3) Comply with ASTM A351/A351M.

4) Type: Van stone.

5) Drilling: Comply with ASME B16.1.

g. Bolting:

1) Bolts: Comply with ASTM A193/A193M, Grade B8; hex head.

2) Nuts: ASTM A194, Grade B8; hex head.

h. Cast-Iron Mating Flange on Valves or Equipment:

1) Bolts: Comply with ASTM A193/A193M, Grade B8; hex head.

5. Crimp Fittings:

a. Material: Cold-drawn stainless steel.

b. Grade: Type 304L.

6. Compression Fittings:

a. Material: Stainless steel.

b. Comply with ASTM A479/A479M.

c. Grade: Type 316.

d. Pressure Rating: As indicated.

2.3 AIR PIPING VALVES

A. Single-Flange Butterfly Valves with Stainless-Steel Disc:

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Apollo Valves; a part of Aalberts Integrated Piping Systems.

b. b. Bray International, Inc

c. Or Equal.

2. Description:

a. Standard: MSS SP-67, Type I.

b. CWP Rating: 150 psig.

c. Body Design: Lug type; suitable for bidirectional dead-end service at rated pressure without use of downstream flange.

d. Body Material: ASTM A126, cast iron or ASTM A536, ductile iron.

e. Seat: EPDM.

f. Stem: One- or two-piece stainless steel.

g. Disc: Stainless steel.

B. Pressure Relief Valve:

1. Bronze, ASME rated and stamped.

2. Pressure-relief valve setting: 30 PSIG.

C. Gate Valve:

1. Comply with MSS SP-80, Class 150 for 2-inch and smaller.

2. Comply with MSS SP-70, Class 125 for 2 ½-inch.

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2.4 ACCESSORIES

A. Pipe-Thread Tape:

1. Material: PTFE.

2. Comply with ASTM D3308.

B. O-Ring Seals: Suitable for service.

C. Flange Gaskets:

1. Comply with ASME B16.5.

2. Nonmetallic Gaskets:

a. Material: Viton.

b. Comply with ASME B16.21.

3. Metallic Ring Joint Gaskets:

a. Material: Stainless Steel 304L.

b. Comply with ASME B16.20.

4. Type:

a. Raised-Face Flanges: Flat ring.

b. Flat-Face Flanges: Full face.

2.5 SOURCE QUALITY CONTROL

A. Section 01 40 00 - Quality Requirements: Requirements for testing, inspection, and analysis.

B. Provide shop inspection and testing of completed assembly.

C. Certificate of Compliance:

1. If manufacturer is approved by authorities having jurisdiction, submit certificate of compliance indicating Work performed at manufacturer's facility conforms to Contract Documents.

2. Specified shop tests are not required for Work performed by approved manufacturer.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Section 01 73 00 - Execution Requirements: Requirements for installation examination.

B. Verify that field dimensions are as indicated on Shop Drawings.

C. Inspect existing flanges for nonstandard bolt hole configurations or design, and verify that new pipe and flange mate properly.

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3.2 PREPARATION

A. Section 01 73 00 - Execution Requirements: Requirements for installation preparation.

B. Ream pipe and tube ends and remove burrs.

C. Bevel plain-end pipe.

D. Thoroughly clean pipe and fittings before installation.

3.3 INSTALLATION

A. Comply with ASME B31.3.

B. Run piping straight along alignment as indicated on Shop Drawings, with minimum number of joints.

C. Fittings:

1. Clean gasket seats thoroughly, and wipe gaskets clean prior to installation.

2. Install according to manufacturer instructions.

3. Bolting:

a. Tighten bolts progressively, drawing up bolts on opposite sides until bolts are uniformly tight.

b. Use torque wrench to tighten bolts to manufacturer instructions.

D. Provide required upstream and downstream clearances from devices as indicated on Shop Drawings.

E. Install piping with sufficient slopes for venting or drainage of liquids and condensate to low points.

F. Support exposed piping as specified in Section 40 05 07 - Hangers and Supports for Process Piping.

G. Provide expansion joints as specified in Section 40 05 06 - Couplings, Adaptors, and Specials for Process Piping, and pipe guides as specified in Section 40 05 07 - Hangers and Supports for Process Piping, to compensate for pipe expansion due to temperature differences.

H. Dielectric Fittings: Provide between dissimilar metals.

I. Field Cuts: According to pipe manufacturer instructions.

J. Field welding of stainless steel is not permitted.

K. Provide cathodic protection where indicated on Drawings for buried ferrous piping systems.

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3.4 TOLERANCES

A. Section 01 40 00 - Quality Requirements: Requirements for tolerances.

B. Piping Laying Tolerance: 5/8 inch.

3.5 FIELD QUALITY CONTROL

A. Section 01 40 00 - Quality Requirements: Requirements for inspecting and testing.

B. Inspection:

1. Inspect for damage to piping or tubing that may be detrimental as determined by the Engineer.

2. Repair damaged piping, or provide new, undamaged pipe.

3. After installation, inspect for required supports and anchoring, interferences, and damage to pipe, tube, or fittings.

C. Pressure Testing:

1. Test Pressure: Not less than 50 psig.

2. Conduct air test for minimum one hour.

3. Filling:

a. Fill section to be tested with air.

b. Raise pressure to specified test pressure.

4. Observe joints, fittings, and valves under test. Apply soap solution to each joint.

5. Remove and renew cracked pipe, joints, fittings, and valves showing visible leakage and retest.

6. Leakage:

a. Correct visible deficiencies and continue testing at same test pressure for additional one hour to determine leakage rate.

b. Maintain pressure within plus or minus 0.5% of test pressure.

c. If test of pipe indicates leakage greater than allowed, locate source of leakage, make corrections, and retest until leakage is within allowable limits.

d. Correct visible or audible leaks (soap solution) regardless of quantity of leakage.

3.6 CLEANING

A. Section 01 73 00 - Execution Requirements: Requirements for cleaning.

B. Keep pipe interior clean as installation progresses.

C. After installation, clean pipe interior of soil, grit, and other debris.

END OF SECTION