ZJHN Pneumatic Double Seated Flow Regulating Valve

The valve has double seats.The fluid outflow through the valve core of the upper and lower sealing surface.The unbalanced pressure is small.It is a balanced structure,which are widely used in petroleum,chemical,pharmaceutical,metallurgical,power plants,such as the industrial sector,to control of gas liquid medium such as steam. GAZJHN Pneumatic diaphragm double-seated pressure regulating valve Structure Valve Body. Structure: flowing through type globe valve with double-seated. DN: 25~300mm. PN: 1.6~10.0Mpa or class 150~class 600. Connections: flanged type. Material: WCB,HT200 ZG230-450 ZG1Cr18Ni9Ti.ZG0Cr18Ni12Mo2Ti. Upper Cover. Normal Temp: -20°C~+200°C. Heat Radiation Type: -40°C~+450°C. Gland Connection: bolted type. Packing: V type PTFE.FLEXIBLE GRAPHITE.S.S BELLOWS. Valve Assembly. Valve Core: Double guiding&double-seated plug type. Cv Features: Linear,Equal Percentage or Quick opening. Material: 1Cr18Ni9Ti0Cr18Ni12Mo2Ti. Actuator. Model: Multi-spring diaphragm type actuator Material of the diaphragm: NBR with reinforced polyester fabric. Spring range: 0.02~0.1/0.04~0.2Mpa. Air Supply: 0.14/0.16/0.28Mpa. Air Supply Connector: M10*1. Working Temp: -30~+70°C. Valve Acting Type: air to close or air to open. Accessories: positioner,,hand wheel. Parameters: (with positioner.) Leakage: <0.5%×Kv. Intrinsic Erro: +/-1.5%. Controlling Range: 30: 1.</p>