Page 42 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Process Planning, Scheduling and Flowsheet Design 27

GENERAL
PIPING MATERIAL SPECIFICATIONS

GENERAL MATERIAL Carbon Steel
MAXIMUM DESIGN PRESSURE and
TEMPERATURE LIMITS 275 PSIG at -20/100°F; 100 PSIG at 750°F
LIMITED BY 150# Flanges
CORROSION ALLOWANCE See Table, This Spec.
CONSTRUCTION 1 �" and Smaller-Socket Welded
2" and Larger-Flanged and Butt-Welded
TYPE SIZE DESCRIPTION
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PIPE: l�" and smaller Schedule 80, ASTM-Al06 Gr. B Seamless P.E. (Plain End). Nipples: Sch. 80 ASTM-
Al06 Gr. B
2" through IO" Schedule 40, Standard Weight, ASTM-A53 Gr. B, Seamless, B.E. (Bevel Ends)
12" through 24" Standard Weight, (.375") ASTM-A53, Gr. B, Seamless, B.E.
FITTINGS: l�" and smaller 3000# F.S., Socket Weld, ASTM-Al05 Gr. 1 or 11
2" through 1 O" Schedule 40, Standard \.\'eight, Butt-Weld ASTM-A234 Gr. WPB, Seamless
12" through 2,1" Same Except Use Standard Weight (.375")
BRANCHES: Full Use Tees
Half header
Size and iarger Straight Tee and Reducer or Reducing Tee
Less half header
Size down through 2" Straight Tee and Reducer or Reducing Tee or Weldolets
I�" and smaller Sockolets, Elbolet.s and Nipolets
l�" and smaller 150# ASA, X.'' R.F., Socket Weld ASTM-Al81 Gr. I
2" and larger 150# ASA Xe'' R.F. Weld Neck, ASTM-Al81 Gr. I
UNIONS: 1 W' and smaller 3000# F.S. Union ASTM-Al05 Gr. 11,
(6) Socket Weld ASA Bl 6.11. Steel to Steel Seats, Ground Joint. No Bronze
BOLTING: All ASTM-Al 93 Gr. B7, Alloy Steel Stud Bolts, with ASTM-Al 94, Class 2H Heavy Series,
Hex. Nuts
GASKETS: ),(•" Thick, Compressed Asbestos Flat Ring Type. (JM 60 or Equal) 500°F and above,
use Flexitallic CG.
THREAD
LUBRICANT: 450°F and under Use Teflon Tape
Over 450°F Use "Molycote" G Paste
GATE
VALVES: 1�" and smaller VGA-112, 800#, Socket Weld Ends,
(4) Welded Bonnet, F.S., ASTM-A.105 Gr.II
W' and smaller VGA-113, 800#, Screwed Ends, Welded
( 1) Bonnet, F.S., ASTM-A.105 Gr.II
2" and larger VGA-101, 150#, Flanged O.S. & Y.,
(2) (7) Cast Steel Body, ASTM-A216 WCB
GLOBE
VALVES: lW' and smaller VGL-215, 800#, Socket Weld Ends,
(4) Welded Bonnet, F.S., ASTM-105
Gr. 11
2" through 12" VGL-200, 150#, Flanged, O.S. & Y.,
(7) Cast Steel Body, ASTl'vI-A.216 WCB
CHECK
VALVES: l�" and smaller VCH-314, 800#, Horizontal Piston
(4) (3) Type Socket Weld Ends, F.S., ASTM-Al05 Gr. II
VCH-312, 800#, Combination Horizontal & Vertical Ball Type, Socket 'Weld Ends,
F.S., ASTM-Al05, Gr. II
2" through 16" VCH-302, 150#, Horizontal Swing Check, Flanged, Cast Steel Body, ASTM-A.216 WCB
DRAINS,
VENTS and
INSTRUME�TS: l" and smaller VGA-120, 800#, Male Socket Weld x
(4) Female Thread Ends, Welded Bonnet, F.S., ASTM-Al05, Gr. II
Figure 1-26. Partial presentation of piping materials specifications for a specific process service. By permission, Borden Chemicals and
Plastics, Operating Limited Partnership. (Figure continued on next page)