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Your location：Home - Product - Regulating valves
Nominal diameterDN20 ~ DN400
Nominal pressure1.6 4.0 6.4MPa
Working temperature-40~230°
Flange formJB79-59
Connecting materialZG25I、ZG1Cr18Ni9Ti、
Product overview
CV3000 series pneumatic diaphragm single seat regulating valve is a top guide single seat regulating valve, which has the characteristics of simple structure, good sealing performance, large flow and reliable use. The effective and sufficient top guide system overcomes the vibration when the opening is small, and the effective service life is longer. Multi spring pneumatic membrane mechanism or electric actuator can be selected.
Product parameters
The valve body is a constant cross-section low flow resistance channel designed according to the principle of hydrodynamics, and the rated flow coefficient is increased by 30%.
The adjustable range is large, the inherent adjustable ratio is 50, and the flow characteristics have straight line and equal percentage.
The regulating cut-off type adopts soft sealing structure valve core, which meets the class VI leakage standard (zero leakage)
Valve body and bonnet: HT200, zg230-450, zg1cr18ni9ti
Valve core and valve seat: 1Cr18Ni9Ti, stellite alloy surfacing
Soft sealing valve core: Reinforced Polytetrafluoroethylene
Packing: PTFE, flexible graphite
Bellows: 1Cr18Ni9Ti
Gasket: Rubber asbestos plate, 10, 1Cr18Ni9Ti, asbestos spiral wound gasket
Membrane cover: A3
Corrugated diaphragm: nitrile rubber clip reinforced polyester fabric
Spring: 60simn
Valve stem and push rod: 2Cr13, 1Cr18Ni9Ti
Bushing: 2Cr13
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