The detachable surface parts in the valve are used to support the fully closed position of the valve core and form a sealing pair. Generally, the seat diameter is the maximum flow diameter of the valve. For example, the seat material of butterfly valve is very wide, all kinds of rubber, plastic and metal materials can be used as valve seat material. Use elastic sealing material and small actuator thrust to obtain

The role of the Wilden Air Valve is to remove the accumulated air in the line. Wilden Air Valve is a special valve used to prevent negative pressure in the pipe caused by the decompression wave in the transient process. It is usually installed at a high point where the dynamic water pressure is low when the pipeline is in normal operation, and the liquid column separation may occur during the transient flow process.

During the starting process of the water pump of Wilden Air Valve, when the valve body is not filled with water, the float ball in the valve body falls due to its own weight, and the air holes are all open. With the rise of the pump starting working head, the pipeline is filled with water, and the air can automatically remove the air in the pipeline. When the valve body starts to fill with water, the floating ball fl

When filling the pipe with water, the faster the gas in the pipe is discharged, the faster the water filling speed; if the water pressure of the water filling is too high and the flow rate is too fast, the Wilden Air Valve will quickly seal the ball, which is prone to water hammer; During the drainage process of the pipeline, if the air is not sucked into the pipe through the Wilden Air Valve or the suction valve (va

Wilden Air Valve is a special valve used to prevent negative pressure in the pipe caused by the decompression wave in the transient process. It is usually installed at a high point where the dynamic water pressure is low when the pipeline is in normal operation, and the liquid column separation may occur during the transient flow process. Air is sucked in when the pressure in the pipe is below atmospheric pressure, a

First of all, in terms of product structure and performance, the bathroom hardware products have a stable and strong structure, and there will be no loosening when shaking up, down, left, and right by hand. The product is reasonably humanized and easy to use. The second is the surface of the product: all bathroom hardware products will be surface-treated, and the surface is generally bright chrome. In order to mee

For a long time, my country's bathroom hardware products are cheap and beautiful, and are deeply loved by foreign dealers and consumers, and the export volume has increased exponentially. However, with the gradual increase in export volume and the deterioration of the international economic situation, more and more countries have begun to implement various similar harsh technical standards to manufacture trade ba