As a pressure driven one-way check valve, the compressor valves plays a key control role in the suction and discharge of compressor gas: when the suction valve is open, it guides gas into the cylinder, and when it is closed, it prevents gas backflow; When the exhaust valve is opened, the compressed gas is discharged, and when it is closed, the discharged gas is avoided from returning, ensuring the working efficiency of the compressor through precise opening and closing actions.
The product strictly follows the core requirements of compressors for compressor valvess, achieving a comprehensive standard of “long service life, low energy loss, excellent sealing, rapid opening and closing action, small clearance volume, simple and easy maintenance structure”. It is suitable for various media such as air, hydrogen, hydrocarbons, and covers multiple industries such as chemical, energy, and machinery.
The company has built a rich matrix of valve type products to meet the needs of different working conditions and scenarios:
R-type valve (spring plate type): Small size design (10R~117R), adopting a center guide structure, suitable for oil working conditions, with a streamlined structure and easy installation;
R-type valve (spring type): large-sized specifications (above 134R), equipped with valve plates, buffer plates, and cylindrical/conical springs, with a center fixed design, compatible with dual working conditions with and without oil;
HDS type valve: adopting a double buffer design and a multi slot structure to ensure a large flow area, suitable for medium and high pressure, medium and low speed (<1000rpm) scenarios, and differentiated design for oil/oil-free working conditions;
CX type non-metallic ring valve: the ideal valve type for hydrogen compressors, with a carbon fiber reinforced valve ring combined with a wide groove and small lift design, excellent flow characteristics, outstanding resistance to impurities and liquid hammer, suitable for working conditions with small molecular weight media (MW<8) and exhaust pressure<130bar.
（2） Structural Innovation and Component Optimization
The design of the compressor valves structure balances precision and reliability, with clear division of labor for core components: the valve seat serves as the pressure bearing unit and is made of steel, stainless steel, or cast iron material, providing concentric ports for gas circulation; The valve plate is made of lightweight materials such as stainless steel, PEEK, nylon, etc., to accurately control the gas flow rate; Valve springs (made of stainless steel, chromium nickel iron alloy, etc.) provide stable initial sealing force, avoiding valve disc vibration or delayed closure; The guide ring and assembly pin ensure the concentricity of the valve plate movement to prevent rotational deviation.
For different lubrication conditions, the product has launched exclusive structural designs: the center guided compressor valves allows the valve plate to slide along the guide ring, and the guide arm guided compressor valves controls the valve plate movement through center fixation and cooperation with the guide arm, respectively adapting to the needs of oil/oil-free working conditions. The dual buffering design is also a core technological highlight. By combining the "closing spring+buffering spring" and the momentum buffering effect of the buffering plate, the impact force between the valve plate and the valve seat is greatly reduced, the tilting motion is reduced, and the valve plate life is significantly extended.
The compressor valves is equipped with stamping type (B type), milling type (D, E type), and modular type (MD, ME type) unloaders. The top rod is driven by pneumatic diaphragm box, electromagnetic and other power sources to open the valve plate and discharge gas when the cylinder pressure is too high, achieving precise adjustment of pressure and gas volume. The stable operation of the unloader can avoid problems such as abnormal temperature rise of the cylinder and valve, difficulty in increasing the compressor output, and further improve the reliability of the entire system.
Using a scientific calculation method for flow area, with valve gap area (fe) as the core indicator, precise design is achieved through the formula fe=(d1+d2+d3+d4+d5+d6+d7) × π× h, combined with multi slot and wide slot structures, to maximize gas flow efficiency and reduce energy loss. The small lift design and circular valve ring structure of CX type valve further optimize the flow characteristics and achieve energy-saving effect.
By precisely adjusting the spring force, problems such as valve disc vibration and energy loss caused by excessive spring force, or reduced exhaust volume and valve disc impact wear caused by weak spring force can be avoided. The differentiated selection of metal and non-metal valve plates can meet the needs of different working conditions: metal valve plates have high strength, corrosion resistance, and low thermal expansion coefficient; Non metallic valve plates have outstanding impact resistance and impurity resistance, excellent performance under oil-free conditions, lower noise and energy consumption, and significantly longer service life than metal valve plates.
Relying on global high-quality raw material suppliers, the core components are made of high-quality materials such as stainless steel, chromium nickel iron alloy, carbon fiber reinforced materials, etc., to ensure the stability of the product under complex working conditions such as high temperature, high pressure, and corrosion. Strict production process control and series design have achieved rapid supply and convenient maintenance of products, reducing customer usage costs.
The product is suitable for a wide range of working conditions including pressure<130bar, pressure difference<65bar, and speed<800rpm, covering various scenarios such as oil/no oil, medium high pressure/low pressure, small molecular weight media/conventional media, etc. It can match the original accessory requirements of all imported compressors. The company provides an integrated solution from design, production, sales to service, relying on a series of design concepts and fast supply cycles to provide customers with the most cost-effective accessory solutions.
