A43H Safety Valve, A43H Double Spring Micro-Opening Safety Valve, A43H-16C A43H-25C A43H-40C Flange Wrench Type Safety Valve for Boiler Steam Water GB JIS ASME

**A43H safety valve** is double spring micro-opening safety valve. **A43H safety valve** adopts Y-type tee integrating two sets of spring micro-lift valves, flange connection with manual lifting wrench for on-site test. Suffix C of A43H = WCB carbon steel body, suffix P of A43H = 304 stainless steel body. H seal surface Cr13 hard alloy, wear-resistant and reliable sealing. **A43H safety valve** suitable for saturated steam and water, max working temperature ≤350℃. When pressure of boiler or pressure vessel exceeds set pressure, A43H safety valve opens for pressure relief and closes automatically after pressure drop. Double valve structure, one for use and one for standby, maintenance without shutdown to guarantee continuous operation. **A43H safety valve** widely used for steam boiler, heat exchanger and pressure vessel pipeline. A43H safety valve complies with GB/T12451, GB/T12452, GB, JIS, ASME standards, custom A43H set pressure available.