Single Call Valve

Single call valve is one of the main equipment on storage and reaction equipment pipelines for various media that undergo thermal expansion and contraction with the change of weather temperature during storage and reaction processes. Single call valves, fire-resistant single call valves, and explosion-proof single call valves are safe and energy-saving products that maintain the pressure balance of storage tanks, ensure that storage tanks or reactors are damaged when pressure increases, and reduce the volatilization and loss of media inside the tanks. When the pressure inside the storage tank or reaction vessel increases to the set value, the exhalation valve disc will automatically open, exhaling gas from the storage tank or reaction vessel to the outside, ensuring the safety performance of the storage tank while exerting pressure reduction function. The operating pressure range of the single call valve produced by Shanghai Meiyan Yi Pump Valve: Type A: -295pa (-30mmH2O)/+355pa (+36mmHg); Type B: -295pa (-30mmH2O)/+980pa (+100mmH2O); Type C: -295pa (-30mmH2O)/+1750pa (+180mmHg).