Page 40 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Process Planning, Scheduling and Flowsheet Design 27

GENERAL
PIPING MATERIAL SPECIFICATIONS
GENERAL MaTERwL : CarbonSteel
MAXIMUM DESIGN IPRESSURE and
TEMPERATURE LIMITS : 275 PSIG at -20/100”F; 100 PSIG at 750°F
LIMITED BY : 150#Flanges
CORROSION ALLOINAP\TCE : See Table, This Spec.
~ O N S ~ U C ~ ~ ~ : ~ 1%”’ and Smaller-Socket Welded
2“ and Larger-Flanged and Butt-welded
TYPE s IZE DESCRIPTION
PIPE: 1%‘’ and smaller Schedule 80, ASTM-A106 Gr. B Seamless P.E. (Plain End). Nipples: Sch. 80 ASTM-
A106 Gr. B
2” through 10“ 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: 1%” and smaller 3000# F.S., Socket Weld, ASTM-A105 Gr. I or I1
2” through 10” Schedule 40, Standard Weight, Butt-weld ASTM-A234 Gr. WPB, Seamless
12” through 24” Same Except Use Standard Weight (.3’15”)
BRANCHES: Full Use Tees
Half header
Size and larger Straight Tee and Reducer or Reducing Tee
Less half header
Size down through 2” Straight Tee and Reducer or Reducing Tee or Weldolets
1%” and smaller Sockoiets, Elbolets and Nipolets
FLALVGES: 1%” and smaller 150# ASA, %” R.F., Socket Weld ASTM-A181 Gr. I
2” and larger 150# ASA %“ R.F. Weld Neck, ASTM-A181 Gr. I
UNIONS: 1 %“ and smaller 3000# F.S. Union ASTM-A105 Gr. 11,
(6) Socket Weld ASA B16.11. Steel to Steel Seats, Ground joint. No Bronze
BOLTING: iU1 ASTM-A193 Gr. B7, Alloy Steel Stud Bolts, with ASTM-Al94, Glass 2H Heavy Series,
Hex. Nuts
GASKETS: %“ Thick, Compressed Asbestos Flat Ring Type. (JM 60 or Equal) 500°F and above,
use Flexitallic CG.
TMRE
LUBRICANT: 450°F and under Use Teflon Tape
Over 450°F Use “Molycote” G Paste
GATE
VAWES: l!4“ and smaller VGA-112, 800#, Socket Weld Ends,
(4) Welded Bonnet, F.S., ASTM-A105 GrJI
%” and smaller VGA-113,800#, Screwed Ends, Welded
(1) Bonnet, F.S., ASTM-A105 Gr.11
2” and larger VGA-101, 150#, Flanged OS. & I!,
(2) (7) Cast Steel Body, ASTM-AZ16 WCB
GLOBE
VPLL’VES: 1%” and smaller VGL-215, 800#, Socket Weld Ends,
(4) Welded Bonnet, F.S., ASTM-105
Gr. I1
2” through 12” VGL200, 150#, Flanged, OS. & Y3
(7) Cast Steel Body, ASTM-A216 WCB
CHECK
VALVES: 1V and smaller VCH-314, 800#, Horizontal Piston
(4) (3) Trpe Socket Weld Ends, F.S., ASTM-A105 Cr. 11
VCH-312, 800#, Combination Horizontal & Vertical Ball Type, Socket Weld Ends,
F.S., ASTM-A105, Gr. 11
2“ through 16” VCH-302,150#, Horizontal Swing Check, Flanged, Cast Steel Body, ASTM-A216 WCB
DRAINS,
VENTS and
INSTRUMENTS: 1” and smaller VGA-120, 800#, Male Socket Weld X
(4) Female Thread Ends, Welded Bonnet, F.S., ASTM-A105, Gr. 11
Figure 11-26. Partial presentation of piping materials specifications for a specific process service. By permission, orden Chemicals and
Plastics, Operating Limited Partnership. (Figure continued on next page)