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