Groth 1200A - Manual (Page 13)

Page 13 of 17
APPENDIX B: Model 1220A Pressure/Vacuum Relief Valve
ITEM DESCRIPTION STANDARD MATERIALS OF CONSTRUCTION
ALUMINUM CARBON STEEL 316 SS
1 BODY AL (356 T6) CS (WCB) 316 SS (CF-8M)
2 NUT, HEX SS SS SS
3 STUD SS SS SS
4 PLUG, PIPE CS CS SS
5 OUTLET AL (356 T6) CS (WCB) 316 SS (CF-8M)
6 STUD SS SS SS
7 NUT, HEX SS SS SS
8 COVER AL (356 T6) CS (WCB) 316 SS (CF-8M)
9 STEM - PRESSURE 316 SS 316 SS 316 SS
10 * GASKET – COVER PTFE PTFE PTFE
11 ROD, GUIDE 316 SS 316 SS 316 SS
12 PALLET, PRESSURE 316 SS 316 SS 316 SS
13 * DIAPHRAGM, PRESSURE FEP FEP FEP
14 PLATE, RETAINER (PRESSURE) 316 SS 316 SS 316 SS
15 * GASKET, INLET PTFE PTFE PTFE
16 COVER AL (356 T6) CS (WCB) 316 SS (CF-8M)
17 WASHER, LOCK SS SS SS
18 NUT, HEX SS SS SS
19 ROD, GUIDE 316 SS 316 SS 316 SS
20 STEM, VACUUM 316 SS 316 SS 316 SS
21 * GASKET, COVER PTFE PTFE PTFE
22 PALLET, VACUUM 316 SS 316 SS 316 SS
23 * DIAPHRAGM, VACUUM FEP FEP FEP
24 PLATE, RETAINER (VACUUM) 316 SS 316 SS 316 SS
25 SCREEN 316 SS 316 SS 316 SS
26 RING, RETAINER 316 SS 316 SS 316 SS
27 BOLT, HEX 316 SS 316 SS 316 SS
28 O-RING (PLATE PALLET) FKM FKM FKM
29 INSERT, SEAT N/A 316 SS N/A
30 PALLET WEIGHT LEAD LEAD LEAD
* = Recommended Spare Parts