Casting steel female thread gate valve

Gate valve (gate valve) is an opening and closing part of the gate, the direction of movement of the gate plate is perpendicular to the direction of the fluid, the gate valve can only be fully opened and closed, can not be adjusted and throttled. The gate valve is sealed through the contact between the valve seat and the gate plate, and usually the sealing surface will be surfacing metal materials to increase wear resistance, such as overlay welding 1Cr13, STL6, stainless steel, etc .

Needle valve specification

Main material sheet

Product Characteristics
1. Light weight
The body is made of high-grade ductile iron, which is about 20%~30% lighter than the traditional gate valve, and is easy to install and maintain.

2. Flat bottom brake
The traditional gate valve is often in the water after washing the pipe, due to foreign objects such as stones, wood, cement, iron filings, debris, etc. silted in the bottom groove of the valve, easy to cause can not be closed tightly and form water leakage phenomenon, elastic seat sealing gate valve bottom with the same flat bottom design as the water pipe machine, not easy to cause debris siltation, so that the fluid is unimpeded.

3. Overall adhesion
The gate plate is made of high-quality rubber for the whole internal and outer rubber, and the European rubber vulcanization technology makes the vulcanized gate plate ensure accurate geometric dimensions, and the rubber and ductile casting gate plate are firmly connected, not easy to fall off and have good elastic memory.

4. Precision casting valve body
The valve body is precision casting, and the precise geometry allows the valve body to be sealed without any finishing inside the body.

Advantages

1.Low flow resistance. The medium channel inside the valve body is straight-through, and the medium flows in a straight line with low flow resistance.

2.Less effort when opening and closing. Compared to shut-off valves, the gate movement direction is perpendicular to the direction of the medium flow, whether open or closed.

3.Large height and long opening and closing time. The opening and closing stroke of the gate plate is large, and the lifting is carried out by the screw.

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

5.The medium can flow in any direction on both sides, which is easy to install. The gate valve passage is symmetrical on both sides.

6.The length of the structure (the distance between the two connecting end faces of the shell) is small.

7.Simple shape, short structure length, good manufacturing process, wide range of application.

8.Compact structure, good valve rigidity, smooth channel, small number of flow resistance, stainless steel and cemented carbide sealing surface, long service life, PTFE packing, reliable sealing, light and flexible operation.