Cast iron gate valves

Features:

1. Small flow resistance. The internal medium channel of the valve body is straight, the medium is straight flow and the flow resistance is small.

2. It is easier to open and close. The gate movement is perpendicular to the flow direction of the medium, whether open or closed, in comparison with the globe valve.

The height is high and the time is long. The opening and closing of the gate is larger, and the drop is done through the screw.

4. Water hammer phenomenon is not easy to produce. The reason is that the closing time is long.

5. The medium can flow in any direction on both sides and easy to install. The gate valve channels are symmetric on both sides. 6. The length of the structure (the distance between the two ends of the shell) is small.

7. The sealing surface is easy to wear and affects the service life. When opening and closing, the gate and seat two sealing surface friction sliding, want medium pressure action to produce abrasion wear, affect sealing performance, shorten service life.

8.It's more expensive. Contact with the cover more, the processing is more complicated, especially the sealing surface of the gate block is not easy to process, and the parts are more.

9.The form is simple, the structure length is short, the manufacturing process is good, the scope is wide.

10. compact structure, the valve rigidity, smooth channel, small number of flow resistance, sealing surface of stainless steel and carbide, long service life, using PTFE packing. The sealing is reliable. The flexible operation of the light.