GA41H, A51H type safety valve is appli-cable to the boiler and pressurecontainer ( Theworking temperature is 450or ess. ),whichwill avoid the pressure rate beyond the allowed upper limit. The medium can be steam or air .
GA41H, A51H type safety valve, except the lever ( material iscarbon steel), hammer (material is cast iron),the materials of other parts is the same as A41H-16C spring load type safety valve.