Product Code : VF--DCCC-DC46-CU
Product specifications: DN1-DN500 are available for selection
Valve body material: brass, cast steel, stainless steel, etc
Applicable media: water, oil, steam and other corrosive fluids, etc
Temperature range: -29 to +200 to +550℃
Medium viscosity: less than 50C St(customization is required if it is greater)
Protective performance: Waterproof, explosion-proof (Exd IICT5), anti-corrosion
Wiring mode: wiring socket type; Lead type; Plug type
Control mode: Normally open, normally closed
Power supply voltage: AC(380, 240, 220, 24)V, DC(110, 24)V
Connection methods: internal thread, flange
Leakage: Zero
Please contact us if you need customized services. We will contact you with the price and availability in 24 hours.
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Working principle of the zero-pressure start solenoid valve:
Normally closed: When the coil is energized, the pilot valve core is drawn in, the pilot hole is opened, the upper chamber of the valve is relieved of pressure, and the piston is pushed by the medium pressure in the lower chamber. The solenoid valve opens. When the coil is de-energized, the pilot valve core is reset by the spring, the pilot hole is closed, and the upper chamber of the valve is pressurized by the piston throttling hole and the push force of the reset spring. The solenoid valve closes.
Zero-pressure start solenoid valve always open: When the coil is energized, the pilot valve core is reset by the spring, the pilot hole is closed, and the upper chamber of the valve is pressurized by the piston throttling hole and the push force of the reset spring. The solenoid valve is closed. When the coil is de-energized, the pilot valve core is reset by the spring, the pilot hole is opened, the upper chamber of the valve is depressurized, and the piston is pushed by the medium pressure in the lower chamber, and the solenoid valve opens.
Zero-pressure start solenoid valve is a type of valve specifically designed for fluid control systems and is widely used in various industrial fields. Here are its main applications:
Industrial field: Zero-pressure start solenoid valves are widely used in petroleum and natural gas equipment, fire protection equipment, water supply and drainage, HVAC (heating, ventilation, and air conditioning), shipbuilding, industrial kilns, boilers, humidification equipment, cleaning equipment, electroplating and coating, filling and metering, machine manufacturing, water treatment systems, etc.
Medium applicability: Suitable for various normal temperature, medium temperature, normal pressure, medium pressure and other environments. It is applicable to pure gas fluids, especially air, tap water, gas, coal gas, diesel, low-pressure steam, hot water pipelines for automatic control. It can also be used for acidic and alkaline media, sewage treatment, etc.
Special environment applications: There is an explosion-proof zero-pressure start electromagnetic valve, suitable for harsh environments such as those in coal mines. For example, the DFB-20/10 mine-used flameproof electromagnetic valve.
Control system integration: The zero-pressure start solenoid valve can be combined with different circuits to achieve the desired control. The main control method is controlled by relays. Thus, the solenoid valve can adjust the on-off, direction, flow rate, speed and other parameters of the medium, and the control accuracy and flexibility can be guaranteed.
Packing of Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.
