Straight - through Pneumatic Program - controlled Valve
The pneumatic program - controlled valve is composed of a piston - type pneumatic actuator and a globe valve. It is suitable for cut - off and shut - off application scenarios. The pneumatic program - controlled valve has good sealing performance, bidirectional pressure resistance without leakage; no wear, no impact, and a long service life; it is resistant to valve scaling. Over a long period, as we continuously improve and develop this type of valve. Now, its structure is simple and reliable, the sealing is good, the operation is convenient, and the sealing service life is long. In recent years, it has been used by many large - scale petrochemical, steel, and chemical fertilizer enterprises.
The pneumatic program - controlled valve is composed of a piston - type pneumatic actuator and a globe valve. It is suitable for cut - off and shut - off application scenarios. The pneumatic program - controlled valve has good sealing performance, bidirectional pressure resistance without leakage; no wear, no impact, and a long service life; it is resistant to valve scaling. Over a long period, as we continuously improve and develop this type of valve. Now, its structure is simple and reliable, the sealing is good, the operation is convenient, and the sealing service life is long. In recent years, it has been used by many large - scale petrochemical, steel, and chemical fertilizer enterprises.
Product Features
- The valve stem and the piston rod are combined into one, ensuring the upper and lower centering; making the online inspection and repair of the valve easy and improving the inspection and repair efficiency;
- Adopt the world - advanced low - resistance valve body and streamline flow channel design, with a precise and delicate casting surface and a functional special guide vane, which greatly reduces the flow resistance;
- Adopt the internal balance principle: adopt the internal balance structure to offset the medium pressure, so that the service pressure difference of the valve is increased, and it has good bidirectional pressure - bearing capacity. When the valve is used in the forward and reverse directions, it has the same sealing specific pressure, which improves the service life of the sealing sheet and reduces the actuator, making the overall volume of the valve smaller.
- Intuitive and reliable on - site indication of the valve position status, with a valve position detection signal device, which can realize the signal remote transmission function;
- Reliable external sealing: adopt hollow V - type packing, which has good self - sealing performance. The packing is made of carbon fiber - reinforced filled polytetrafluoroethylene material with anti - wear components added to improve wear resistance. The packing set has a spring compensation structure and can automatically compensate after the packing is worn. Proven by more than twenty years of use, the sealing of this packing set structure is very reliable and has a long service life;
- Advanced sealing sheet: Use PEEK sealing sheet. It is a polymer material with high hardness and mechanical strength and good resilience. Using this sealing sheet greatly improves the service life of the valve;
- Unique anti - scouring structure: In the gas medium in the process pipeline, there may be a certain amount of impurities. Driven by the high - speed airflow, these impurities will concentrate and scour the sealing sheet. After a certain period of time, some pits will appear on the valve sealing sheet of the general structure, causing internal leakage of the valve. This valve is designed with a sealing sheet anti - scouring device, which can make more than 95% of the gas scour on the anti - scouring device and make the gas flow direction have a certain guiding effect to protect the sealing sheet. Using this anti - scouring device and the sealing sheet can effectively ensure that the service life of the sealing sheet reaches more than 1 million switch times.
Performance Features
- Good sealing performance, reaching the zero - leakage standard;
- The valve switching speed is fast, within 5S;
- Long service life, can withstand long - term frequent switching;
- Has bidirectional pressure resistance and anti - high - speed airflow scouring performance;
- Can be used in harsh environments such as hydrogen, carbon monoxide (flammable, explosive, toxic, and dusty);
- Has bidirectional pressure resistance and anti - high - speed airflow scouring performance;
- Pneumatic switch, with on - site indication of the valve position status and switch signal feedback.
Main Technical Parameters
