Jiangsu Jiechuang
Top-Guided Pneumatic Diaphragm Control Valve with Actuator
Product Overview
This top-guided pneumatic control valve is equipped with spring diaphragm actuator.
It uses compressed air as power source to automatically adjust flow, pressure and temperature of pipeline medium.
Top-guided plug structure effectively avoids spool swing and vibration for stable precision regulation.
Application
Petrochemical plant: control crude oil, solvent, weak corrosive chemical liquid flow
Thermal power station: boiler steam & feed water pressure and flow regulation
Water treatment factory: purified water and industrial wastewater automatic adjustment
Food & pharmaceutical industry: sanitary medium pipeline flow control
Refinery & oil depot: naphtha, base oil storage pipeline regulating
Product Features
1. Top-guided plug design: Full upper stem guiding structure, low vibration, anti-jamming, adapt medium with tiny solid particles.
2. Integrated spring diaphragm pneumatic actuator, fast opening/closing response, stable output thrust.
3. Single seat globe trim, tight shut-off performance, leakage optional Class IV~Class VI.
4. Optional body material: WCB carbon steel / CF8(304SS) / CF8M(316SS), match normal & weak corrosive medium.
5. Can fit electro-pneumatic positioner, air filter regulator to receive standard 4-20mA DC control signal for remote intelligent control.
6. Standard GB/ANSI/JIS RF flange connection, convenient on-site pipeline installation.
Technical Parameters
Item | Standard Specification |
Product Name | Top-Guided Pneumatic Diaphragm Single Seat Control Valve with Diaphragm Actuator |
Nominal Diameter | DN15 ~ DN200 (NPS1/2''~NPS8'') |
Nominal Pressure | PN16, PN25, PN40; ANSI Class150 / Class300 |
Valve Body Material | WCB Carbon Steel / CF8(304 Stainless Steel) / CF8M(316 Stainless Steel) |
Trim/Plug Material | 304/316SS, Stellite hardfacing optional for abrasion service |
Connection Type | RF Flange (GB / ANSI / JIS) |
Applicable Medium | Liquid, Gas, Steam, slight corrosive fluid, medium with fine particles |
Working Temperature | -20℃ ~ +425℃ (custom high temp available) |
Actuator Air Supply Pressure | 0.02~0.1MPa clean compressed air |
Control Signal | 4~20mA DC (with electro-pneumatic positioner) |
Leakage Grade | Standard Class IV, optional tight shut-off Class VI |
All parameters can be customized as required.
