Product Usage:

Used in refrigeration pipeline systems with temperatures below -200 ℃ in military, aerospace, shipbuilding, nuclear, petrochemical, power, chemical, mechanical, scientific research, refrigeration equipment, fire protection, food, medical, testing equipment, air conditioning refrigeration, etc. Suitable for actuators that use nitrogen, carbon dioxide, and other media for automatic temperature control.

Structural features:

Unique design and exquisite appearance;

The valve core is a stainless steel piston structure with stable performance;

Low temperature, wear-resistant material production, good sealing performance;

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

Autocratic coil, dedicated heat dissipation structure, not easy to burn out;

Long term movements, agile movements;

Product parameters:

★ Product specifications: DN0.5~DN200

★ Applicable media: Low temperature fluids such as liquid nitrogen, liquid oxygen, liquid carbon dioxide, etc

★ Control mode: normally closed, normally open

★ Valve body material: stainless steel

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

★ Medium temperature: (-200, -50)~+80 ℃

★ Medium viscosity: less than 50Ct (customized if greater)

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

★ Protective performance: dustproof, waterproof, explosion-proof. Select based on operating conditions

★ Wiring method: socket type; Lead type; Plug in 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.

2. The external dimensions are determined according to the connection method, and can be customized for special requirements.