Groth 1800A - Manual (Page 14)

Page 14 of 17
APPENDIX D: Model 1830A Pressure Relief Valve
ITEM DESCRIPTION STANDARD MATERIALS OF CONSTRUCTION
ALUMINUM CARBON STL 316 SS
1 BASE AL(GR 356-T6) CS(GR WCB) 316 SS(GR CF-8M)
2 WEATHER HOOD ALUM CS 316 SS
3 WEATHER HOOD POST 316 SS 316 SS 316 SS
4 HEX NUT SS SS SS
5 LOCK WASHER SS SS SS
6 FLAT WASHER SS SS SS
7 STEM GUIDE ALUM CS 316 SS
8 HEX JAM NUT SS SS SS
9 EYE NUT (3"-12" ONLY) SS SS SS
10 PRESSURE SCREEN 316 SS 316 SS 316 SS
11 PRESSURE STEM 316 SS 316 SS 316 SS
12 PRESSURE PALLET (1) (NOT SHOWN) 316 SS 316 SS 316 SS
13 * PRESSURE DIAPHRAGM, PRIMARY (2)(3) (NOT SHOWN) FEP FEP FEP
14 * PRESSURE DIAPHRAGM, BACKUP (2) (NOT SHOWN) FEP FEP FEP
15 PRESSURE RETAINER PLATE (NOT SHOWN) 316 SS 316 SS 316 SS
16 FLAT WASHER (NOT SHOWN) SS SS SS
17 HEX EXPANDING LOCK NUT (NOT SHOWN) SS SS SS
18 SEAT INSERT (6"-12" ONLY) (4) (NOT SHOWN) 316 SS 316 SS 316 SS
19 * O-RING (6"-12" ONLY) (3) (NOT SHOWN) FKM FKM FKM
20 SET SCREW (6"-12" ONLY) (NOT SHOWN) SS SS SS
21 SEAT INSERT (2"-4" ONLY) (4) (NOT SHOWN) N/A 316 SS N/A
22 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.