Gas relief valve 3VSS2

for compressed airstainless steelstainless steel

Inlet and outlet connections by flanges screwed to the body: G 3/4-F; G 1-F; G 1 1/4-F; 3/4″NPT-F; 1”NPT-F; 1 1/4″NPT-F. Flanged connections EN or ASME available on request. The relief valve opens when the inlet pressure increases above the set point initially regulated by the adjusting screw and it closes when the pressure goes down under the set point. Set point pressure up to 15 bar (218 psi) is controlled by a rubber diaphragm; greater outlet pressures are controlled by a piston. Available the ATEX version. Brand CE ExII2GDcIICX. For use in potentially explosive zones: 1, 21, 2, 22 (not for mines and zone 0). The product complies with the directive 97/23/CE PED. IN/OUT Connection G 3/4”-F | G 1”-F | 3/4”NPT-F | 1”NPT-F | UNI EN 1092-1 | ASME B16.5 Working Temperature - -4+176°F standard | From -76 up to +608 °F on request Maximum Allowable Pressure (PS) - 22,5 bar (diaphragm) | 70 bar (piston) CV (CEI EN 60534-2) - 8,2 US gal/min Weight ~17,5 lb Plug Leakage Class “A” class (UNI EN 12266-1) Pressure Gauge Connection - 1/4”-F | 1/8”-F (GAS / NPT) (only on request) Certifications PED 2014/68/UE | ATEX 2014/34/UE | EAC TR CU 010 | EAC Ex TR CU 012 Seals Material EPDM | FPM | FVMQ | FFKM Accesories - Wall mounting bracket Spare Parts Kit - O-rings | assembled plug | assembled diaphragm (if applicable)