The single-seat control valve with bellows seal adopts a top-guided unbalanced structure, featuring high strength, heavy load, an S-shaped flow path, small pressure drop loss, a large flow coefficient, a wide adjustable range, and high precision of flow characteristics. The bonnet cover adopts a double seal of bellows and packing, fundamentally eliminating the possibility of medium leakage. This type of control valve is suitable for the flow and pressure control of toxic or precious media.
The valve cage adopts a pressure-sealed valve seat design, solving problems such as difficult disassembly and large leakage of traditional threaded-in valve seats, and extending the service life. It adopts an open-flow design, and the medium tends to flow in the direction of valve opening. The controllability at small openings is good, and the deviation of flow characteristics is small. Special valve cages for noise reduction and anti-cavitation can be selected according to working condition requirements.
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Top-guided type
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Unbalanced trim structure
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Quick-dismantling structure
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Straight-through type
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Angle type
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Equal percentage
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Linear
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Quick opening
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PN1.6, 4.0, 6.3Mpa (ANSI 150, 300, 600LB)
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ASME B16.104 V (Standard metal valve seat)
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ASME B16.104 VI (Cut-off type soft valve seat)
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Flanged type
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Butt-welded type
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Pneumatic diaphragm actuator
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Pneumatic piston actuator
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Electric actuator
