Double Interlocking Switch Type Safety Valve

Product Description I. Summarize: Double interlocking switch safety device is a new product independently developed by Luofu based on the original safety valve and changeover valve. According to the design of API520 and BS1873, the inlet and outlet of the safety valve on the pipeline can be switched jointly, allowing for simultaneous opening and closing. This instruction primarily introduces the changeover valve. About the safety valve, please refer to our Operating