The ZJHP pneumatic thin film single seat regulating valve has the advantages of compact structure, light weight, sensitive action, low pressure drop loss, large valve capacity, precise flow characteristics, and easy maintenance, and can be used in harsh working conditions. The pneumatic diaphragm single seat regulating valve is composed of a multi spring pneumatic diaphragm actuator and a low flow resistance precision small single seat regulating valve body. The multi spring actuator used is low in height, light in weight, and easy to equip. The pneumatic diaphragm single seat regulating valve is equipped with a valve positioner, which converts the current signal into a corresponding linear displacement, automatically controls the opening of the regulating valve, and achieves continuous adjustment of process parameters such as pressure, flow rate, temperature, and liquid level of the fluid in the pipeline. Pneumatic thin film single seat regulating valves are widely used for precise control of gases, liquids, steam and other media. Pneumatic single seat regulating valves are particularly suitable for working environments where the allowable pressure difference is small and the allowable leakage is also small.

Pneumatic single seat regulating valve has stable operation, reliable action characteristics, small valve seat leakage, precise flow characteristics, and a wide adjustable range. It will undoubtedly achieve high-quality control effects in a wide range of applications with its unique advantages.

Main technical parameters

Nominal pressure: PN1.6、2.5、4.0、6.0ANSI150、300、600JIS10、20、30、40

Working temperature: Room temperature type: -60~+250 ℃, -20~+200 ℃; Heat dissipation type: -60~+450 ℃; Low temperature type:- 60~-100 ℃- 100~-250℃

Environmental temperature:- 20~-60℃

Flow characteristics: linear type, equal percentage type

Valve seat form: single seat, double seat, sleeve, angle type

Adjustable ratio: 50：1

Gas source: 0.3-0.6MPa

Input signal: 4-20mA, 1-5V

Feedback signal: 4-20mA, 1-5V

Part name and material

Valve body and valve cover: WCB、CF8、CF8M、CF3、CF3M

Valve core cover: 304, 316, 316L welded with Stellite alloy, 17-4PH (precipitation hardening stainless steel)

Packing: V-shaped PTFE PPL、 Flexible graphite

Valve stem: 304, 316, 316L, 17-4PH

Link size

This series of products is widely used in the automation and remote control of industrial production processes such as chemical, petroleum, metallurgy, power plants, textiles, papermaking, and pharmaceuticals. There are various types including standard type, adjustable cutting type, corrugated pipe sealing type, jacket insulation type, etc. The product pressure rating is PN1.6 4.0 6.4MPa; Nominal diameter DN15~300mm; The minimum valve core is DN6mm. The applicable fluid temperature ranges from -60 ℃ to+450 ℃; According to the temperature, different valve covers can be divided into room temperature type, high temperature type, and low temperature type.