The importance of hydraulic spare parts is self-evident, timely stockpiling and replacement of hydraulic spare parts can not only shorten the maintenance time of the equipment, improve the reliability of the hydraulic system, but also to avoid the recurrence of equipment failures, reduce maintenance costs. There are many common hydraulic spare parts, this article will be around the pressure reducing valve to start the introduction.
Pressure reducing valve is a kind of hydraulic valve, also known as safety valve, is the key part of the hydraulic system to control pressure. It has a wide range of applications in petroleum, chemical, construction, water supply and other fields. In many application scenarios, pressure reducing valves play a vital role. In the petroleum, chemical industry, pressure reducing valves to ensure the safe transportation and handling of high-pressure fluids; in the building water supply and drainage system, it ensures that the pressure of domestic water is moderate and the flow rate is stable; and in the water supply industry, pressure reducing valves effectively solve the problem of pressure loss in the process of long-distance water transmission. Its importance and the wide range of applications can be seen.
Pressure reducing valve regulates the inlet pressure to the pre-set outlet pressure through its own mechanical components, and relies on the medium's own energy, so that the outlet pressure is automatically maintained at a stable level. Its core components include valve body, valve flap, spring and adjusting screws.
Valve body as the foundation of the pressure reducing valve, bears the burden of bearing the pressure of the medium, and guide the medium flow to the pressure reducing chamber. Valve is the key to control the flow of media, it according to changes in media pressure to adjust the degree of opening, so as to realize the effect of pressure reduction. The spring plays the role of reset, to ensure that the valve flap in the closed state can be sealed to prevent media leakage. Adjustment screws are used to adjust the pressure reduction range and sensitivity of the pressure reducing valve to meet the needs of different working conditions.
The working principle of pressure reducing valve is simple and efficient. When the medium flows through the pressure reducing valve, the valve flap opens under the action of medium pressure, and the medium flows through the valve flap and enters the pressure reducing chamber. In the pressure reducing chamber, due to the increase in space, the medium pressure is naturally reduced. Adjust the spring force through the adjusting screw, so that the valve flap in the media pressure drops to the set value when closed, so as to realize the precise effect of pressure reduction.
Pressure reducing valve can effectively reduce the pressure caused by safety accidents, vital to personal safety, so in the choice of pressure reducing valve need to pay extra attention to its quality, when buying, need to focus on its performance parameters, including pressure reduction range, pressure stability, flow characteristics and applicable media. It is best to choose a well-known brand production of pressure reducing valves, their production of pressure reducing valves quality is more guaranteed.
In addition, the following points also need to pay attention to:
(1) Define the use of pressure reducing valve in the equipment or device; (2) Determine the nominal diameter of the pipeline connected to the pressure reducing valve and the connection method; (3) Determine the way to operate the pressure reducing valve: manual, electric, electromagnetic, pneumatic or hydraulic, electro-hydraulic linkage, etc.; (4) Determine the materials of the selected pressure reducing valve's casing and internal parts based on the medium, operating pressure, and working temperature of the pipeline; (5) Determine the type of pressure reducing valve; (6) Determine the geometric parameters of the selected pressure reducing valve.
Finally, when installing a pressure reducing valve, cleanliness is the first condition, any impurities may lead to valve failure. During installation, attention should be paid to the alignment of the valve body and piping to ensure a tight connection and prevent leakage. After the installation is complete, pressure testing and commissioning must be carried out.
If you want to know more professional knowledge about hydraulic spare parts, you can visit the official website of Hanjiu, which manufactures hydraulic pumps and spare parts. The products are sold all over the world and have gained good reputation and feedback. At present, we have agents in more than ten countries and regions around the world.
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