Thin film pneumatic high-temperature regulating valve

Thin film pneumatic high-temperature regulating valvesummary:

Steam pneumatic diaphragm regulating valveIt mainly consists of two parts: pneumatic actuator and regulating valve. Equipped with an intelligent locator, it can receive 4-20mA analog signals sent by the control system. Control the opening of the valve to regulate parameters such as pipeline medium pressure and flow rate. Compared with ordinary pneumatic control valves, pneumatic high-temperature control valves are more suitable for medium pipelines with temperatures greater than 250 ° C. If a regular pneumatic control valve is used at high temperatures, the high temperature will be transmitted to the pneumatic actuator through the valve stem, causing malfunction or damage to the pneumatic head. The pneumatic high-temperature regulating valve is equipped with a heat sink between the pneumatic head and the regulating valve, ensuring that the pneumatic head will not be damaged due to high temperature conduction of the medium. Therefore, pneumatic high-temperature regulating valves are more suitable for various high-temperature gas or liquid pipelines. The valve body is available in two-way and three-way options. Widely used in heating, chemical, environmental protection and other working conditions.

Thin film pneumatic high-temperature regulating valveExecution mechanism parameters:
Spring range (KPa): 20-100 (standard), 20-60, 60-100, 40-200, 80-240
Membrane material: rubber clip nylon cloth, ethylene propylene rubber clip nylon cloth
Gas supply pressure: 140-400KPa
Air source interface: RC1/4
Environmental temperature: -30 to+70 ℃
Accessories available: locator, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc
Function form: Gas closed (B) - valve position open when gas is lost (FO), gas open (K) - valve position closed when gas is lost (FC)
The flow channel of the pneumatic thin film high-temperature regulating valve is S-shaped, which has the advantages of compact structure, light weight, sensitive action, small pressure drop loss, large valve capacity, precise flow characteristics, and easy maintenance. It can be used under harsh working conditions. The pneumatic thin film high-temperature regulating valve is equipped with an electric pneumatic valve positioning or a pneumatic valve positioner, which can achieve automatic regulation and control of the fluid medium in the process pipeline. High temperature pneumatic control valves are widely used to precisely control process parameters such as pressure, flow rate, temperature, liquid level, etc. of gases, liquids, steam, and other media to maintain them at given values. Pneumatic high-temperature regulating valves are particularly suitable for situations where the allowable leakage is small, the pressure difference before and after the valve is not large, and the temperature is high.

Technical Specifications:
Caliber: DN25~DN300
Material: Carbon Steel Stainless Steel/CF8 CF8M CF3M
Type: Single seat socket
Valve cover/seat/stem/spool/sleeve: 304 316 316L
Packing gland/guide sleeve/cap: 304 316 316L
Sealing gasket: PTFE, flexible graphite, para polystyrene
Pressure: 1.6~10MPa
Valve cover form:>High temperature type (+250~+450 ℃)
Cover form: bolt compression type
Sealing packing: V-shaped polytetrafluoroethylene packing, V-shaped flexible graphite packing
Traffic characteristics: equal percentage, linear type