Product introduction:

The ram has two sealing surfaces. The most commonly used mode is that the two sealing surfaces of the ram valve form a wedge, and the wedge angle varies with the valve parameters, usually 50. When the medium temperature is not high, it is 2 ° 52 ". The gate of wedge gate valve can be made into a whole, which is called rigid gate valve; It can also be made into a ram that can produce slight deformation to improve its manufacturability and make up for the deviation of the angle of the sealing surface in the processing process. This kind of ram is called elastic ram. Generally, there are trapezoidal threads on the lifting rod. Through the nut at the top of the valve and the guide groove on the valve body, the rotary motion is changed into linear motion, that is, the operating torque is changed into operating thrust. When the valve is opened, when the lifting height of the ram is equal to 1:1 times of the valve diameter, the fluid channel is completely unblocked, but this position cannot be monitored during operation. In actual use, the vertex of the valve stem is used as the mark, that is, the position that cannot be opened is used as its fully open position. In order to consider the locking phenomenon caused by temperature change, it is usually opened to the peak position and then turned back 1 / 2-1 turn as the position of fully open valve. Therefore, the fully open position of the valve is determined according to the position (i.e. stroke) of the ram.

Product features:

1. Flat bottom valve seat, no dirt accumulation, making the seal more reliable

2. The valve disc is wrapped with nitrile rubber as a whole, and the valve internals are made of corrosion-resistant stainless steel and copper alloy, which can be used in the sewage system to adapt to the harsh working environment

3. Small size, light weight, easy installation and maintenance

4. The valve stem is sealed with three O-rings, which greatly reduces the friction resistance during switching, and the switch is light and watertight.