PART 1 GENERAL

1.1 SCOPE

A. This specification covers carbon steel piping for general non-corrosive gas and liquid process service.

B. Design limits based on ASME B16.42 Class 150 ductile iron Valves and on EWP's temperature limit on PTFE in gaskets.

C. Corrosion Allowance: 0.0625 inch.

1.2 RELATED DOCUMENTS

A. Specification Doc. No..., "Piping, General Notes"

B. Specification Doc. No..., "Piping, General Fabrication"

C. Specification Doc. No..., "Piping, General Installation"

D. Specification Doc. No..., "Piping, General Testing"

E. Specification Doc. No..., "Piping, General Welding"

F. Specification Doc. No..., "Piping, Carbon Steel Welding"

G. Specification Doc. No..., "Pipe Weld Inspection and Testing"

H. Specification Doc. No..., "Piping, General Cleaning"

I. Standard Details Doc. No..., Doc. No..., Doc. No...,Doc. No...

1.3 REFERENCES

1.3.1 American Petroleum Institute (API)

1. API 594 Wafer Check Valves
2. API 600 Steel Gate Valves, Flanged or Buttwelding Ends
3. API 602 Compact Carbon Steel Gate Valves
4. API 607 Fire Test for Soft-Seated Quarter Turn Valves
5. API 608 Metal Ball Valves
6. API 609 Butterfly Valves, Lug Type and Wafer Type

1.3.2 American Society of Mechanical Engineers (ASME)

1. ASME B31.3 Process Piping
2. ASME B1.20.1 Pipe Threads, General Purpose (inch)
3. ASME B16.5 Steel Pipe Flanges and Pipe Fittings
4. ASME B16.9 Wrought Steel Buttweld Fittings
5. ASME B16.10 Face-to-Face and End-to-End Dimensions Ferrous Valves
6. ASME B16.11 Forged Steel Fittings Socketwelding and Threaded
7. ASME B16.21 Nonmetallic Flat Gaskets for Pipe Flanges
8. ASME B16.25 Buttwelding Ends
9. ASME B16.34 Steel Valves - Flanged and Buttwelding Ends
10. ASME B16.36 Orifice Flanges
11. ASME B16.48 Steel Line Blanks
12. ASME B31.1 Power Piping
13. ASME B31.3 Chemical Plant and Petroleum Refinery Piping
14. ASME B36.10 Welded and Seamless Wrought Steel Pipe

1.3.3 Manufacturer Standard Society Practice (MSS)

1. MSS SP-25 MSS Standard Marking System for Valves, Fittings, Flanges and Unions
2. MSS SP-79 Socket Welding Reducer Inserts
3. MSS SP-83 Class 3000 Steel Pipe Unions, Socket Welding and Threaded
4. MSS SP-95 Swage(d) Nipples and Bull Plugs
5. MSS SP-97 Integrally Reinforced Forged Branch Outlet Fittings - Socket Welding, Threaded and Buttwelding Ends

1.3.4 Process Industry Practice (PIP)

1. PIP PNSM0001 Piping Line Class Designator System

PART 2 PRODUCTS

Notes:

• 02 - Pipe Bending shall be used ONLY where specified on the drawings or where approved in writing by the EWP project engineer.
• 03 - Specify WN flanges adjacent to welded fittings and/or Butterfly Valves as alternates only.
• 05 - Threaded joints are permitted only at terminal of vent, drain, and hydrostatic test connections, and at instrument take-off points, and to match equipment.
• 06 - EWP's TED site preference, class 2000 threaded FS fittings are made only in 45° and 90° elbows, tees, and crosses. The class 2000 fittings are rated same as sch XS/80 (max) threaded pipe. Class 3000 fittings found in existing lines may be replaced by class 2000.
• 14 - Line blinds, spacers, restricting orifices, and spectacle blinds shall be per Standard Details Doc. No...01 thru 04.
• 18 - Conical Strainer to be used as temporary start-up strainer at pumps.
• 20 - Thread sealant to be used on all thread joints except if seal welding is used. Refer to Specification Doc. No....
• 22 - These Valves have no flanges but are installed between line flanges with extra length bolts.
• 23 - Cast Valves used in "critical service" or "very critical" service should be considered for radiographic inspection.
• 24 - BW gate or globe is for alternate use.
• 25 - Reducing fittings that have ends of different thickness must show thickness (e.g., Conc. Red - SCH XS x SCH STD).
• 31 - Butterfly Valves NPS 6 and smaller w/ handle; NPS 8 and larger w/ gear operator. Do not use above 177°C service.
• 32 - Intended for orifice taps only.
• 33 - Doc. No... for slurry service.
• 34 - Valves with PTFE may be chosen for use in the OXO reactor loop piping.
• 35 - Valve Index 180 is alternate for 180K.
• 36 - May be used for Relief Valve changeover.

PART 3 EXECUTION

3.1 Piping, General Notes

See Specification Doc. No...

3.2 Assembly Details

Following are recommended vent/drain and instrument connections.
Other connections may be shown on design:

3.3 FABRICATION

A. See Specification Doc. No..., "Piping, General Fabrication," Specification Doc. No..., "Piping, General Welding,"
Specification Doc. No..., "Piping, Carbon Steel Welding," and Specification Doc. No..., "Pipe Weld Inspection and Testing."

3.4 INSTALLATION

A. See Specification Doc. No..., "Piping, General Installation"

3.5 TESTING

A. See Specification Doc. No..., "Piping, General Testing"

B. Vacuum Piping System: Apply Pneumatic Leak Test with internal pressure at 1.5 times the maximum operating external pressure, or minimum 15 psig (103 kPag, 1.03 bar-g, 1.06 kgf/cm2)

C. Category D Piping System: Apply Initial Service Leak Test

D. Normal Service Piping System: Apply standard Hydrostatic Leak Test.

E. Category M Piping System: Apply both a standard Hydrostatic Leak Test and a Sensitive Leak Test with helium tracer gas.

F. Maximum Hydrostatic Test Pressure: 413 psig (2848 kPag, 28.4 bar-g, 29.0 kgf/cm2)

3.6 CLEANING

A. See Specification Doc. No..., "Piping, General Cleaning"