Groth 1800A - Manual (Page 12)

Page 12 of 17
APPENDIX B: Model 1810A Vacuum Relief Valve
ITEM DESCRIPTION STANDARD MATERIALS OF CONSTRUCTION
ALUMINUM CARBON STL 316 SS
1 BODY AL(GR 356-T6) CS(GR WCB) 316 SS(GR CF-8M)
2 HEX BOLT SS SS SS
3 HEX NUT SS SS SS
4 LOCK WASHER SS SS SS
5 * INLET GASKET PTFE PTFE PTFE
6 PRESSURE COVER ALUM CS 316 SS
7 STUD SS SS SS
8 HEX NUT SS SS SS
9 LOCK WASHER SS SS SS
10 COVER AL(GR 356-T6) CS(GR WCB) 316 SS(GR CF-8M)
11 VACUUM STEM 316 SS 316 SS 316 SS
12 * COVER GASKET PTFE PTFE PTFE
13 GUIDE ROD 316 SS 316 SS 316 SS
14 VACUUM PALLET (1) (NOT SHOWN) 316 SS 316 SS 316 SS
15 * VACUUM DIAPHRAGM, PRIMARY (2)(3) (NOT SHOWN) FEP FEP FEP
16 * VACUUM DIAPHRAGM, BACKUP (2) (NOT SHOWN) FEP FEP FEP
17 VACUUM RETAINER PLATE (NOT SHOWN) 316 SS 316 SS 316 SS
18 FLAT WASHER (NOT SHOWN) SS SS SS
19 HEX EXPANDING LOCK NUT (NOT SHOWN) SS SS SS
20 SEAT INSERT (6"-12" ONLY) (4) (NOT SHOWN) 316 SS 316 SS 316 SS
21 * O-RING (6"-12" ONLY) (3) (NOT SHOWN) (NOT SHOWN) FKM FKM FKM
22 SET SCREW (6"-12" ONLY) (NOT SHOWN) SS SS SS
23 VACUUM SCREEN ASSY. (OPTIONAL) 316 SS 316 SS 316 SS
24 SEAT INSERT (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.