Description
The bellows-sealed single-seat regulating valve core, featuring an upper guide structure, combines precision and safety in a compact design. Its S-shaped fluid channel ensures small pressure drop loss, large flow capacity, wide adjustable range, and high flow accuracy
The pneumatic control valve bellows sealing structure in the upper cover reliably handles toxic, flammable, explosive, volatile, and rare precious metal media, as well as vacuum applications. It meets ANSI B16.104 leakage standards, ensuring exceptional tightness and safety.
Equipped with a multi-spring diaphragm actuator, it boasts a compact structure with large output force, making it ideal for demanding industrial environments requiring precision and reliability.
| Body | WCB, Stainless steel,Super duplex steel | |
| Size | 1/2″-8″ DN15-DN200 | |
| Body style | Straight-through, angle type | |
| Bonnet style | Standard type, heat dissipation type, bellows type, jacket insulation type | |
| Connection | Flanged FF、RF、RJ、TG、MFM SW（40～50mm）；BW（65～200mm） |
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| Flow characteristics: | Linear, EQ | |
| Pressure | PN16-PN100,10-20K,150-900LB | |
| Leakage level: | Hard seal (ASME B16.104 IV) Soft seal (ASME B16.104 VI) |
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| Operating temperature | Normal temperature type -20~+250℃ Heat dissipation type -40~+450℃ High temperature type +450~+560℃ Low temperature type -196~-60℃ |
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| Valve Actuator | Pneumatic actuator, electric actuator | |
| Valve Accessories | Solenoid valve, limit switch, E/P positioner, position-holding valve, quick-opening valve, handwheel, air source filter | |
FAQ
What is a bellows-sealed control valve?
A bellows-sealed control valve is a high-performance regulating valve designed for precise control of fluid flow. It features a bellows-sealed single-seat regulating valve core with an upper guide structure, optimized for safety and reliability in demanding applications.
What media can this valve handle?
The bellows sealing structure makes it suitable for handling **extremely toxic, flammable, explosive, volatile, and rare precious metal media**. It is also well-suited for **vacuum applications**, offering exceptional versatility.
What is the purpose of the bellows sealing structure?
The bellows sealing structure in the upper valve cover provides a complete enclosure, preventing media leakage. This is especially critical for hazardous and high-value materials, ensuring operational safety and environmental protection.
What industries benefit from this valve?
Industries like chemical processing, petrochemicals, pharmaceuticals, and industrial gas production rely on this valve for its ability to handle hazardous media with unmatched precision and safety.
How do I maintain the bellows-sealed control valve?
Maintenance involves visual inspection of the bellows seal, ensuring no signs of wear or leakage, and routine checks on the actuator’s diaphragm and output force. The compact design simplifies these tasks, minimizing downtime.
Pneumatic control valve catalog download
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CAGE TYPE CONTROL VALVE? ? ? ? ? ? ? ? ? SINGLE SEAT CONTROL VALVE
