Working principle of QPJ pressure swing adsorption pneumatic programmable valve

The QPJ pressure swing adsorption pneumatic program-controlled valve is mainly composed of a valve body and a pneumatic actuator (straight stroke cylinder). Its opening and closing parts are plug shaped valve discs, and the sealing surface is flat or conical. The valve disc moves linearly along the center line of the fluid, also known as a cut-off valve. It is the most widely used valve. The reason why it is popular is because the friction between the sealing surfaces is small during the opening and closing process, it is relatively durable, the opening height is not large, it is easy to manufacture, and it is easy to maintain. It is not only suitable for medium and low pressure, but also for high pressure. Widely applicable for cutting off or circulating media in transportation pipelines such as food, medicine, petroleum, chemical, natural gas, steel, environmental protection, and papermaking.

　　Product Features of QPJ Pressure Swing Adsorption Pneumatic Program Control Valve

1. The valve stem and piston rod are combined into one to ensure vertical alignment; Make valve online maintenance easy and improve maintenance efficiency;

2. Adopting high-quality low flow resistance valve body, streamlined flow channel design, precise and meticulous casting surface, and specially functional flow deflectors, the flow resistance is greatly reduced;

3. Adopting the principle of internal balance: By using an internal balance structure to counteract the pressure of the medium, the pressure difference of the valve is increased, and it has good bidirectional pressure bearing capacity. When the valve is used in both forward and reverse directions, it has the same sealing pair pressure ratio, which increases the service life of the sealing gasket and reduces the actuator, resulting in a reduction in the overall volume of the valve.

4. Intuitive and reliable on-site indication of valve position status, equipped with valve position detection signal device, can achieve remote signal transmission function;

5. Reliable external seal: using hollow V-shaped packing, with good self sealing performance. The filler is made of carbon fiber reinforced polytetrafluoroethylene material, with added anti friction components to improve wear resistance. The packing group has a spring compensation structure, which can automatically compensate for the wear of the packing. After more than 20 years of use, it has been proven that the sealing structure of this packing group is very reliable and has a long service life;

6. High quality sealing gasket: Use PEEK sealing gasket. It is a polymer material with high hardness, mechanical strength, and good resilience. The use of this sealing gasket greatly improves the lifespan of the valve; 7. Unique anti erosion structure: There may be a certain amount of impurities in the gas medium in the process pipeline. Under the push of high-speed airflow, these impurities will quickly gather and erode the sealing plate. After a certain period of time, the sealing gasket of a typical valve structure may have some pits, causing internal leakage of the valve. This valve is designed with a sealing plate anti scouring device, which can flush over 95% of the gas onto the anti scouring device and provide a certain guiding effect on the gas flow direction to protect the sealing plate. The use of this anti erosion device and sealing plate can effectively ensure that the service life of the sealing plate reaches more than 1 million switches.

　　Performance characteristics of QPJ pressure swing adsorption pneumatic programmable valve

1. Good sealing performance, reaching zero leakage standard;

2. Fast valve opening and closing speed within 3 seconds;

3. Long lifespan, able to withstand frequent long-term switching;

4. Capable of bidirectional pressure resistance and resistance to high-speed airflow erosion;

5. Can be used in harsh environments such as hydrogen, carbon monoxide, which are flammable, explosive, toxic, and dusty;

6. Capable of bidirectional pressure resistance and resistance to high-speed airflow erosion;

7. Pneumatic switch, with on-site indication of valve position status and switch signal feedback.