That has a sound business enterprise credit history, excellent after-sales assistance and modern production facilities, we now have earned an superb status among our buyers across the whole world for Chinese Professional China ANSI 125 Cast Iron Flanged End Resilient Seat Non-Rising Stem Gate Valve, For more information, please contact us as soon as possible!
That has a sound business enterprise credit history, excellent after-sales assistance and modern production facilities, we now have earned an superb status among our buyers across the whole world for China Electric Gate Valve, Stainless Steel Gate Valve, All these goods are manufactured in our factory located in China. So we can guarantee our quality critically and availably. Within these four years we sell not only our products but also our service to clients throughout the world.
Usually 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 to say, the operating torque is changed into the operating thrust. When opening the valve, when the gate lifting height is equal to 1:1 times the valve diameter, the flow passage is completely open, but when running, this position can not be monitored. In practical use, the vertex of the valve stem is used as the sign, that is, the position of the valve stem that is not moving is used as its full open position. In order to consider the locking phenomenon of temperature change, the valve is usually opened to the vertex position and reversed to 1/2-1 turn as the position of the fully open valve. Therefore, the full open position of the valve is determined by the position of the gate (i.e. stroke).
Product characteristics:
1. Flat-bottomed seat, no accumulation of dirt, make the seal more reliable.
2. The valve disc is encapsulated with NBR as a whole. The inner parts of the valve are made of corrosion-resistant stainless steel and copper alloy, which can be used for sewage system to adapt to harsh working conditions.
3. Small size, light weight, easy to install and maintain
4. The valve stem is sealed with three O-rings, which greatly reduces the friction resistance of the switch and makes the switch light and water-tight.
Major Component Materials
name |
Texture of material |
valve body |
Ductile iron |
Valve plate |
Ethylene propylene rubber |
Nut |
brass |
Bolt |
SS201 |
Bonnet |
Ductile iron |
Opposite open loop |
brass |
Type O circle |
Ethylene propylene rubber |
Stem |