Model 937E Over Pressure and Under Pressure Valve Flame Arrester

Model 937E

Flame Arrester Model 937E

Over Pressure and Under Pressure Valves

Pipe Sizes DN50, DN80, DN100, DN150, DN200, DN250
2", 3", 4", 6", 8", 10"
Connection Standards ISO 7005 PN10
ANSI B16.5 150 RF
Materials Strip protection: Stainless Steel, Special Alloys
Valve insert: Stainless Steel, Special Alloys
Valve seat: Stainless Steel, Special Alloys
Body: Ductile iron, Stainless Steel
Set Pressure Overpressure +5 mbar to +50 mbar
Underpressure 2.5 mbar to 50 mbar
Protection System End of line deflagration arrester
Approval EC type examination certificate based upon
Directive 94/9/EC, according to ATEX 95 and ISO 16852, EN 134631 and EN 134635
Protection Gas/air or steam/air mixtures of the following explosion groups:
– I (methane) NSW ≥ 1.14 mm
– IIA (D) NSW ≥ 0.90 mm
– IIB3 (C) NSW ≥ 0.65 mm