What Is The Difference Between Wafer Check Valves And Lug Check Valves?

There are differences between wafer check valve and lug check valve in connection mode, stability, installation location applicability, structural characteristics, application scenarios, etc. The specific analysis is as follows:
Connection: The wafer check valve is connected to the pipe through the wafer connection. In installation process, long bolts are used through the connecting hole and flange hole of the wafer butterfly valve, and the lug check valve is divided into perforated pressure hole and threaded pressure hole. The method of installing through pressure hole is similar to that of wafer butterfly valve. The installation method of threaded hole pressure hole is different from that of wafer butterfly valve and flanged butterfly valve. Each pressure hole has a thread. When connecting the flange to the pipe, bolt through the flange and tighten.
Stability: the wafer check valve installation stability is poor, lug check valve stability comparable to the flange butterfly valve, better than wafer check valve.
Applicability of installation position: the wafer check valve can only be clamped in the middle of the pipe, the lug check valve can be clamped in the middle and end of the pipe, and can be used as an end valve.
Structure characteristics: the wafer check valve has short structure length, only 1/4-1/ 8 of the traditional flange check valve, small size and light weight, only 1/4-1/ 20 of the traditional flange check valve, lug check valve has the same reliable installation characteristics as the flange check valve, with short structure length and small installation space.
Application scenarios: Wafer check valve is suitable for industrial, environmental protection, water treatment, high-rise building water supply and drainage pipelines to prevent media backflow; lug check valve is widely used for low pressure, medium pressure, high pressure, steel, metallurgy, petroleum, chemical, electricity and other industrial pipelines, as a device to protect pipelines from major equipment of the backflow medium.