The ZXP/ZJHP pneumatic diaphragm single seat control valve consists of a pneumatic multi-spring actuator and a precision small valve body. The multi-spring actuator has low height, light weight and simple assembly. The compact and small valve body has compact structure, smooth flow path and large flow coefficient. The pneumatic diaphragm single-seat control valve is suitable for applications where the leakage requirements are strict, the differential pressure before and after the valve is low, and there is a certain viscosity and a small amount of fiber medium. Shanghai Taichen Pneumatic Membrane Control Valve is the terminal control device for industrial process measurement and control system. It consists of pneumatic diaphragm actuator and straight-through single-seat, double-seat, sleeve and other regulating valves. It can automatically change the valve according to the control signal of the system. The position of the shutoff valve spool changes the flow area between the valve core and the valve seat, that is, changes the resistance coefficient of the valve, thereby adjusting the process parameters such as medium flow, pressure and liquid level.
The pneumatic diaphragm regulating valve adopts double guiding structure and is equipped with multi-spring actuator. It has the advantages of compact structure, light weight, sensitive action, large valve capacity, accurate flow characteristics and convenient assembly and disassembly. The leakage standards are Class III and Class IV. The flow characteristics are linear or percentage. A wide variety of specifications are available. Taichen valve pneumatic diaphragm single-seat control valve is widely used to precisely control gas, liquid, steam and other media, process parameters such as pressure, flow, temperature, liquid level are kept at a given value. It is especially suitable for work situations where the leakage is small and the pressure difference is small.
Pneumatic film single seat control valve parameters :
Body material: cast steel, chrome molybdenum steel, forged steel, stainless steel, etc.
Spool material: 1Cr18Ni9 , 0Cr18Ni12Mo2Ti CF8 CF8M
Pressure rating: 1.6MPa -6.4MPa (10mpa or more for custom )
Temperature range: normal temperature -20 °C ~ +230 °C Heat sink type -60 °C ~ +450 °C
Form of action: positive action ( air shutoff ) or reaction ( air open )
Flow characteristics: equal percentage, linear
Leakage: Single seat valve: 0.01% × rated Kv
Double seat valve, sleeve valve: 0.5% × rated Kv
Flow characteristics: straight line, equal percentage, quick opening type
Flange form: conforms to JB78-59 and JB79-59 standards, and can be JB/79.1-94 , JB/79.2-94 , ANSI , JIS , DIN
Upper bonnet form: normal ( normal temperature type ) , hot type ( medium temperature type ) , low temperature type
Can be equipped with accessories: positioner, handwheel, electric / gas converter , air filter regulator
Related products: electric film single seat control valve , pneumatic diaphragm double seat control valve
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