SD 731 relief valves are spring self-actuated valves. When the force exerted by the fluid pressure is greater than the force exerted by the spring, the valves open automatically allowing the fluid to exit the valves. The relief valves are safety devices which prevent the maximum allowable working pressure in the system from being exceeded. Direct acting relief valves are suitable for air, natural gas, liquefied petroleum gas and CO2.
Reference standard: EN ISO 4126-1
CE certificate according to PED 97/23/EC
| MODEL | SD 731 |
|---|---|
| TECHNICAL CHARACTERISTICS |
Nominal pressure: 100 bar Relief pressure: 2,5 ÷ 16 bar Intervention accuracy class (AG): up to 5% |
| CONNECTION TYPE | Threaded connection: G½, G¾, G1 |
|
OPERATING CONDITIONS |
Ambient temperature: -30°C ÷ +80°C Working fluid temperature: -20°C ÷ +60°C |
| WORKING MEDIUM | Natural gas and other non-corrosive gases |
