The medium is water,oil,steam,acid medium.
The swing check valve is adopted of internal roker arm swing structure. All of the opening and closing parts are mounted in the valve body,not getting through the valve body. There is no leaking point except the flange part which is using sealing washer and sealing ring so that the leakage is avoided.Spheriacal Connection Structure is adopted for Rocker Arm and Disc Connection of the Swing Check Valve which makes the disc have some freedom at the scope of 360° and micro position compensation.