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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.

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Groth 1800A Manuel d'utilisateur Page 12