Low price big size gate valve which includes valve body, valve cover, valve stem, valve seat and gate plate, the valve cover is fixedly connected with the valve body, the upper end of the valve stem is connected with the quick drive device through the valve cover, and the lower end is connected with the gate in the valve body. board connection.
The installation position, height, and direction of inlet and outlet must meet the design requirements, and the connection should be firm and tight.
The sealing surface can be sealed only by the medium pressure, that is, relying on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing.
ball check valve Manufacturers china relates to a valve structure which is used in the pipeline system and prevents the backflow of liquid in the pipeline. It consists of a valve body, a valve seat and a ball.
ball check valve Manufacturers china is a check valve with multi-ball, multi-flow channel, multi-cone inverted fluid structure, mainly composed of front and rear valve bodies, rubber balls, cone bodies, etc.
The check valve is an automatic valve. It relies on the pressure of the flowing medium in the pipeline to push the valve flap to close and open the valve. When the medium stops flowing, the check valve flap closes, which can effectively prevent the backflow of the medium in the pipeline. , which plays a great role in ensuring the safety of the pipeline.
The check valve includes a valve body, a valve disc and a jacking device. The jacking device includes a hollow connecting pipe, two hollow connecting pipes, a top plate, two top plates and a rotating handle, and one end of the one hollow connecting pipe is connected with the two hollow connecting pipes. One end is communicated, and the other end is rotatably connected to the side wall of the valve cavity of the valve body and extends through the side wall of the valve cavity toward the end away from the side wall of the valve cavity.
The low price thread ball check valve includes a valve body with connecting flanges at both ends and a rolling ball inside. The valve body is provided with a ball chamber for accommodating the rolling ball. The shape of the ball chamber is a truncated cone. shape, a flange is arranged at its outer end, and a cover plate is arranged on the flange;