Product Usage:

Applicable to actuators that use nitrogen, carbon dioxide, and other media for automatic temperature control. Widely used in refrigeration pipeline systems with temperatures below -200 ℃ in aerospace, shipbuilding, testing equipment, food and medical equipment, chemical, refrigeration equipment, air conditioning refrigeration, etc.

Structural features:

The valve core is a stainless steel piston type; The piston ring is made of special temperature resistant and wear-resistant materials

The piston and metal valve chamber do not produce direct friction, and the service life is ten times that of similar products

The installation direction of the valve body is unrestricted, and the action response is rapid

Autocratic coil with a heat dissipation structure that is not easily burned out;

Long term stop action restarts, with equally sensitive action;

Product parameters:

Product specifications: DN0.5~DN200

Applicable media: liquid nitrogen, gas, oil, corrosive fluids, etc

Control mode: normally closed, normally open

Valve body material: stainless steel

Power supply voltage: DC12~127V AC36~380V

Medium temperature: -200 ℃~+150 ℃

Connection method: internal thread, flange (external thread and special interfaces can be customized or equipped with adapters)

Protective performance: waterproof, explosion-proof, anti-corrosion

Wiring method: socket type; Lead type

Leakage rate: zero

working principle:

Normally closed type: When the coil is energized, the pilot valve core is attracted, the pilot hole is opened, the upper chamber of the valve is depressurized, the piston is pushed by the pressure of the lower chamber medium, and the solenoid valve is opened; When the coil is powered off, the pilot valve core is reset by the spring, the pilot hole is closed, the upper chamber of the valve is pressurized by the piston throttle hole and the thrust of the reset spring, and the solenoid valve is closed.

Normally open type: When the coil is energized, the pilot hole closes, and the upper chamber of the valve is pressurized by the piston orifice and the thrust of the reset spring, causing the solenoid valve to close; When the coil is powered off, the pilot valve core is reset by the spring, the pilot hole opens, the upper chamber of the valve is depressurized, the piston is pushed by the pressure of the lower chamber medium, and the solenoid valve opens.

Note: If the pressure at the outlet end is greater than that at the inlet end, the medium will conduct in reverse. Can install check valves or customize valves with built-in check function.