The gate valve is one of the most commonly used cut-off valves, used to cut off or connect the medium in the pipeline. The shrinkage of the diameter can reduce the size of the parts, reduce the force required for opening and closing, and expand the application range of the parts. But after the diameter shrinks, the fluid resistance loss increases.
The gate valves have the characteristics: Low fluid resistance Applicable pressure and temperature range, etc. It is one of the most commonly used cut-off valves, used to cut off or connect the medium in the pipeline.
Domestic and abroad low-pressure gate valves generally use cast iron materials. Cast iron gate valves often have serious problems such as freezing and cracking of the valve body and falling off of the gate. The carbon steel stem of the cast-iron gate valve is easy to rust, the quality of the packing gasket is poor, and the internal and external leakage is serious.
Diameter shrinkage can reduce the size of parts, reduce the force required for opening and closing, and expand the application range of parts. But after the diameter shrinks, the fluid resistance loss increases.
1. Overall rubber encapsulation: The gate adopts high-quality rubber for the overall inner and outer rubber. European first-class rubber vulcanization technology enables the vulcanized gate to ensure accurate geometric dimensions, and the rubber and ductile cast gate can be firmly connected, which is not easy Good shedding and elastic memory.
2. Lightweight: The body is made of high-grade nodular black cast iron, and the weight is about 20%~30% lighter than the traditional gate valve. It is easy to install and maintain.
3. Precision casting valve body: The valve body adopts precision casting, and the precise geometric dimensions make the inside of the valve body without any fine processing to ensure the sealing of the valve.
4. Flat-bottomed gate seat: The traditional gate valve often deposits in the groove at the bottom of the valve due to foreign objects such as stones, wood, cement, iron filings, sundries, etc. after the pipe is washed with water, which can easily cause water leakage.
The bottom of the elastic seat-sealed gate valve adopts the same flat-bottom design as the water pipe machine, which is not easy to cause debris siltation and makes the fluid flow unimpeded.
5. The opening and closing torque are small, and the opening and closing are more labor-saving. Because the direction of the gate movement is perpendicular to the direction of the medium flow when the gate valve is opened and closed, the opening and closing of the gate valve is more labor-saving
6. Small fluid resistance: because the internal medium channel of the gate valve body is straight, the medium does not change its flow direction when flowing through the gate valve, so the fluid resistance is small.
We are a gate valves supplier, please feel free to contact us if you need them!