Groove connecting tubes, including two major categories of products: ① the role of the connecting pipe with sealed joints rigid, flexible joint, grooved mechanical tee and flange; ② the transition from the role of connecting pipe fittings are elbow, tees, crosses, reducers, blind panels.
 Seal the connecting trench connecting tubes are mainly of three parts: sealing rubber rings, pipe clamp and locking bolts. Located in the inner rubber ring placed outside of the pipe being connected, and with pre-roll system is consistent groove, then fasten the outer rubber ring clamp, and then you can use the two bolts fastening. Due to its rubber seals and steel clip can be sealed using a unique design, making the groove connection with a good seal, and with the increased fluid pressure inside the tube, the seal corresponding increase.