PRODUCTS

312V2

Stainless steel AISI 316L relief valve, for compressed air, gas and liquid.

Product

Relief valve for relief pressure up to 50 bar (725 psi).
Available connection ports:

3/8″G-F
1/2″G-F
3/8″NPT-F
1/2″NPT-F

Flanged connections available on request.

Relief pressure, up to 15 bar (217 psi), is controlled by rubber diaphragm; greater relief pressure are controlled by a AISI 316L piston.
The product complies with the 2014/68/EU PED directive.
Available ATEX 2014/34/UE version.

Other versions on request.
For use in potentially explosive atmosphere zones:
1, 21, 2, 22 (not applicable in mines and zone 0).

CHARACTERISTICS

Technical data

CompatibilityCompressed air | Tecnhical gases and their mixtures | Liquids | Oils
IN/OUT ConnectionG 1/4”-F | G 3/8”-F | G 1/2”-F | UNI EN 1092-1 1/4”NPT-F | 3/8”NPT-F | 1/2”NPT-F | 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)2,3 US gal/min
Relief Pressure Ranges0,2 ÷ 1,5 | 0,3 ÷ 3 | 0,8 ÷ 8 | 1,5 ÷ 15 | 3 ÷ 30 | 5 ÷ 50 bar
Weight~5,5 lb
Plug Leakage Class“A” class (UNI EN 12266-1)
Pressure Gauge Connection1/4”-F | 1/8”-F (GAS / NPT)
CertificationsPED 2014/68/UE | ATEX 2014/34/UE | EAC TR CU 010 | EAC Ex TR CU 012
Internals and Body MaterialStainless steel AISI 316L
Seals MaterialEDPM | FPM | FVMQ | FFKM
AccesoriesWall mounting bracket
Spare Parts KitO-rings | assembled plug | assembled diaphragm (if applicable)
TECHNICAL DESIGN

Technical design