Wst flow reducing valve is a device for automatically adjusting the pressure of liquid or gas, which is widely used in industrial production, construction engineering, urban water supply and other fields. This paper will introduce the basic structure, working principle, installation method, maintenance and other knowledge of wst flow pressure reducing valve to help users use and maintain the equipment correctly.
structure
Wst flow reducing valve is mainly composed of valve body, piston, power device and control system. The valve body is generally made of cast iron or steel, with good corrosion resistance and high pressure resistance. The piston part is usually composed of spring, taper shank and sleeve, which can be divided into integral type and split type according to the working principle. The power device mainly includes electromagnetic valve, potentiometer and other electrical components, which are used to monitor and control the on/off state of the valve. The control system can cooperate with hydraulic, pneumatic and other auxiliary equipment as needed to improve the degree and accuracy of automation.
principle of operation
The working principle of wst flow reducing valve is to use piston mechanism to adjust medium pressure. When the pressure exceeds the set value, the compression force of the spring increases and the piston moves down, which increases the resistance of the liquid path and the gas path and reduces the pressure of the medium. When the pressure drops below the set value, the compression force of the spring decreases, the piston rises, the resistance decreases and the medium pressure increases. In this process, the power plant and the control system respond in time, complete the corresponding control instructions, and realize automatic adjustment.
fixed
Correct installation is an important condition to ensure the normal operation of wst flow reducing valve. Before installation, the working medium, pressure range, flow requirements, temperature and other parameters of the valve should be confirmed according to the actual needs, and the appropriate model and specification should be selected. At the same time, we should pay attention to the following:
1. The installation site shall be kept in a dry, ventilated and dust-free environment to avoid the influence of external factors on the valve.
2. The valve should be installed according to the direction of fluid flow, the outlet should be connected to the required system, and the pressure adjustment range should correspond to the pressure range in the system.
3. Before installation, clean the inner cavity, check whether the sealing ring is intact and whether the fasteners are loose to prevent air leakage and water leakage.
maintain
Regular maintenance is the key to ensure the long-term stable operation of wst flow reducing valve. Here are some things to pay attention to:
1. After the valve is used for a period of time, it should be inspected and maintained. It mainly includes cleaning the inner cavity and replacing aging and damaged sealing rings, fasteners, pistons and other parts to ensure normal work.
2. The environment of the valve should be kept clean and dry, so as not to affect the working effect.
3. During use, frequent opening and closing of the valve should be avoided, so as not to affect the service life of the valve.
4. If valve parts need to be replaced, products from regular manufacturers should be selected and operated under the guidance of professionals.
In a word, proper use and maintenance is the key to ensure the normal operation of wst flow reducing valve. I hope this article can provide some useful references and suggestions for users, so that you can give full play to the performance and advantages of the equipment in actual use.