Description
525 Slow Opening Blow-Off Valve
DESCRIPTION
MATERIAL
Body: Steel A216 WCC
Cover: Steel A216 WCC
Gasket: Tanged Graphite
Disc Spring: 17-7 Stainless Steel
Disc Rivet: Carbon Steel
Disc: 440C Stainless Steel
Arm: Steel A216 WCC
Stem: 410 Stainless Steel
Stem Rivet: Carbon Steel
Stem Spring: 17-7 Stainless Steel
Packing: Graphite
Packing Nut: 410 Stainless Steel
Handle (1” & 1 1/4”): Ductile Iron 65-45-12
Handle (1 1/2” & 2”): Steel A216 WCC
Cotter Pin: Plated Steel
Body Bolts: Steel Grade 8
Hex Nuts: Steel Grade 8
Name Plate: Stainless Steel
Drive Screws: Stainless Steel
Operating Assembly: Bronze
CRN OCO7135.2, 24, 25, 26
CRN OEO2171.7, 79, 70, 78, 7AY, 7T, 7N
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