The manufacturer tells you the advantages of cast basalt valves

Cast basalt valve is a good valve, which is widely used in the slurry transportation of granular materials in mining, power plant, metallurgy, chemical industry and other departments. Let's talk about the advantages of cast basalt valves. The cast basalt valve drives the valve stem and gate to rise and fall through the hydraulic cylinder to prevent the opening and closing of the valve. When the valve is opened, the hydraulic cylinder provides power to pull the valve rod and drive the ram to move downward. When the ram drops to a specific height, the hole on the ram is aligned with the hole on the sealing plate and equal to the inner diameter of the outer pipeline. At this time, the valve forms a short channel, thus forming a smooth channel. When the valve is closed, the ram rises and the ram locks the channel. The length from the fully open position to the gate position when the gate is dead is the stroke of the valve. Compared with ordinary ram, cast basalt valve has the following advantages:

1. Low opening and closing torque

The gate valve plate relies on the medium pressure as the main sealing force. When it is opened, the slurry enters the gap between the sealing plate and the gate, which reduces the pressure between the gate and the sealing plate, thus reducing the friction between the sealing surfaces, protecting the sealing surfaces and reducing the manufacturing cost.

2. Long service life of sealing surface

The valve body free design eliminates the sealing friction caused by unilateral differential pressure. In the opening and closing stage, the sealing surface is only affected by the bolt preload, so it can protect the sealing surface with angular effect, greatly reduce the friction loss of slurry on the sealing surface, prolong the service life and improve the sealing reliability.

3. Especially suitable for high voltage

It is suitable for frequent opening and closing and high-pressure occasions. Therefore, it is widely used in slurry transportation of particulate matter in metallurgy, power plant, industry, chemical industry and other departments, especially in medium and high pressure slurry pipeline.

4. The security is greatly improved

The valve is designed with travel switch and lower limit block to ensure that the ram can reach the fully open and fully closed position to a greater extent; When opening, the gap between the sealing plate and the ram can effectively balance the opening and closing differential pressure, so as to reduce the leakage of the ram due to wear.