BSZJHP pneumatic membrane single-seat regulating valve, composed with diaphragm spring actuator and a fine small single-seat valve. Multi-

spring actuator has the feature of low height, light weight, easy equipment, with the small fine valve has smooth flow, and big flow coefficient features .Suitable for strict leakage requirement occasions with low pressure diiferential .But certain viscosity or containing small amount of fibrous media is allowed.

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