Groth 1721B - Manual (Page 14)

Page 14 of 18
Groth Model 1722B Pressure/Vacuum Relief Valve
Bill of Material
ITEM DESCRIPTION STANDARD MATERIALS OF CONSTRUCTION
CARBON STEEL 316 SS
1 BODY CS (GR. WCB) 316 SS(GR. CF8M)
2 STUD SS SS
3 HEX NUT SS SS
4 LOCK WASHER SS SS
5 PIPE PLUG CS 316 SS(GR. CF8M)
6 OUTLET CS(GR. WCB) 316 SS
7 LOCK WASHER SS SS
8 HEX NUT SS SS
9 STUD SS SS
10 COVER CS(GR. WCB) 316 SS(GR. CF8M)
11 PRESSURE STEM 316 SS 316 SS
12 * COVER GASKET PTFE PTFE
13 GUIDE ROD 316 SS 316 SS
14 PRESSURE PALLET 316 SS 316 SS
15 * PRESSURE DIAPHRAGM, PRIMARY FEP FEP
16 * PRESSURE DIAPHRAGM, BACKUP FEP FEP
17 PRESSURE RETAINER PLATE 316 SS 316 SS
18 FLAT WASHER SS SS
19 HEX EXPANDING LOCK NUT SS SS
20 * INLET GASKET PTFE PTFE
21 GUIDE ROD 316 SS 316 SS
22 SPRING CHAMBER CS(GR. WCB) 316 SS(GR. CF8M)
23 * CAP GASKET 316 SS 316 SS
24 CAP CS 316 SS
25 HEX NUT SS SS
26 ADJUSTMENT SCREW 316 SS 316 SS
27 SPRING BUTTON 316 SS 316 SS
28 SPRING CS 17-7 PH SS
29 VACUUM STEM 316 SS 316 SS
30 VACUUM PALLET 316 SS 316 SS
31 * VACUUM DIAPHRAGM, PRIMARY FEP FEP
32 * VACUUM DIAPHRAGM, BACKUP FEP FEP
33 VACUUM RETAINER PLATE 316 SS 316 SS
34 * O-RING FKM FKM
35 HEX EXPANDING LOCK NUT SS SS
36 * O-RING (MACHINED PALLET) FKM FKM
37 VACUUM SCREEN ASSY. (OPTIONAL) 316 SS 316 SS
38 SEAT INSERT (NOT SHOWN) 316 SS N/A
39 PALLET WEIGHT(NOT SHOWN) LEAD LEAD
* SPARE PARTS