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Appendix e: model 1860a pressure relief valve – Groth 1800A User Manual

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Page 15 of 17

APPENDIX E: Model 1860A Pressure Relief Valve

ITEM

DESCRIPTION

STANDARD MATERIALS OF CONSTRUCTION

ALUMINUM

CARBON STL

316 SS

1

OUTLET

AL(GR 356-T6)

CS(GR WCB)

316 SS(GR CF-8M)

2

LOCK WASHER

SS

SS

SS

3

HEX NUT

SS

SS

SS

4

STUD

SS

SS

SS

5

COVER

AL(GR 356-T6)

CS(GR WCB)

316 SS(GR CF-8M)

6

PRESSURE STEM

316 SS

316 SS

316 SS

7 *

COVER

GASKET

PTFE

PTFE

PTFE

8

GUIDE ROD

316 SS

316 SS

316 SS

9

PRESSURE PALLET (1) (NOT SHOWN)

316 SS

316 SS

316 SS

10

*

PRESSURE DIAPHRAGM, PRIMARY (2)(3) (NOT SHOWN)

FEP

FEP

FEP

11

*

PRESSURE DIAPHRAGM, BACKUP (2) (NOT SHOWN)

FEP

FEP

FEP

12

PRESSURE RETAINER PLATE (NOT SHOWN)

316 SS

316 SS

316 SS

13

FLAT WASHER (NOT SHOWN)

SS

SS

SS

14

HEX EXPANDING LOCK NUT (NOT SHOWN)

SS

SS

SS

15 *

INLET

GASKET

PTFE

PTFE

PTFE

16

LOCK WASHER

SS

SS

SS

17

HEX NUT

SS

SS

SS

18

STUD

SS

SS

SS

19

INLET

AL(GR 356-T6)

CS(GR WCB)

316 SS(GR CF-8M)

20

PIPE PLUG

316 SS

CS

316 SS

21

SEAT INSERT (6"-12" ONLY) (4) (NOT SHOWN)

316 SS

316 SS

316 SS

22

*

O-RING (6"-12" ONLY) (3) (NOT SHOWN)

FKM

FKM

FKM

23

SET SCREW (6"-12" ONLY) (NOT SHOWN)

SS

SS

SS

24

SEAT INSERT (2"-4" ONLY) (4) (NOT SHOWN)

N/A

316 SS

N/A

25

PALLET WEIGHT (5) (NOT SHOWN)

LEAD

LEAD

LEAD

* SPARE PARTS
(1) PALLET ALSO AVAILABLE IN ALUMINUM.
(2) Fluoropolymer IS A REGISTERED TRADEMARK OF E.I. DU PONT DE NEMOURS AND CO. USED UNDER LICENSE.
(3) ELASTOMERS ALSO AVAILABLE IN AFLAS, BUNA-N, EPDM & FFKM
(4) SEAT: CS UNITS – WELDED
(5) AVAILABLE IN 316 SS; CONSULT FACTORY FOR ALT. MATERIALS.

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