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Butterfly valves
The working principle of pneumatic expansion butterfly valve is to rely on compressed air provided by the air source to cause elastic deformation of the sealing pair inside the valve body, thereby achieving switch control. After the gas source enters the valve body, it is compressed to a certain pressure through a compressor and then sent into the cylinder, causing the piston to move left or right...
How to choose valve plasma welding equipment? Background of valve overlay welding Scratches, erosion, and corrosion can all damage the valve sealing surface. The composition and metal structure of sealing materials, surface treatment process, hardness and hardness difference, specific pressure and conformity, and many other factors can all affect the quality of valve sealing surfaces. Each type of...
(1) The installation position of the regulating valve should meet the requirements of the process flow design, and should be close to the primary indicating instrument related to it, so that the primary instrument can be observed when manually operating the bypass valve; (2) The regulating valve should be arranged on the ground or platform and easy to operate and maintain; (3) The regulating valve...
Drain, block steam, and exhaust air, therefore, in steam systems, drain valves are very important as they can maximize the utilization of heat energy and are the most important link between steam and condensate systems. 1. The essence of steam is water, which is a gaseous water containing a lot of heat. In the production process of using steam, when steam passes through heat exchange equipment, th...
1、 What is a steam trap valve? A steam trap is a device designed on devices that require steam, which can automatically discharge condensate, air, and non condensable gases from the steam system and prevent steam from being discharged. 2、 The important functions of steam traps: (1) Able to quickly eliminate the generated condensate water; (2) Prevent steam leakage; (3) Remo...
1、 Working principle of check valve Check valve refers to a valve that automatically opens and closes the valve disc by relying on the flow of the medium itself to prevent medium backflow. It is also known as a check valve, one-way valve, backflow valve, and backpressure valve. Check valve is an automatic valve that mainly functions to prevent medium backflow, prevent pump and drive motor reversal...
Selection and setting location of valves 1. Valves used on water supply pipelines are generally selected according to the following principles （1）When the pipe diameter is not greater than 50mm, globe valves should be used, and gate valves and butterfly valves should be used when the pipe diameter is greater than 50mm. （2）When adjusting flow and water pressure, it is advisable to use regulating va...
1.Gate valve refers to a valve that moves the closing element (gate) vertically along the axis of the channel. It is mainly used to cut off the medium in the pipeline, that is, fully open or fully closed. Generally, gate valves cannot be used to regulate flow. It can be suitable for low temperature and high pressure as well as high temperature and high pressure, and can be made of different materi...
This type of valve is used to prevent media backflow, utilizing the kinetic energy of the fluid itself to open and automatically close when flowing in the opposite direction. Permanent at the outlet of the water pump, the outlet of the drain, and other places where fluid reverse flow is not allowed. There are three types of check valves: swing, lift, and clamp. For swing check valves, when the flu...
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