Working principle of cryogenic solenoid valve, function and design standards of cryogenic solenoid valve

Cryogenic solenoid valve Function

Low temperature The solenoid valve is made of special low-temperature and wear-resistant materials. The lowest temperature can reach -196°C. It is mainly used for liquid nitrogen, liquid ammonia, corrosive fluids, low-temperature refrigerants and other media. It has long life, simple structure and few faults. Features such as easy maintenance. Cryogenic solenoid valves are widely used in pipeline devices in petroleum, chemical industry, metallurgy, textile, food, shipbuilding, medical, environmental protection and other industrial sectors.

Cryogenic solenoid valve design standards< /strong>

All parts of the cryogenic solenoid valve are Special low-temperature treatment ensures the low-temperature performance of the material and ensures fine machining dimensions to prevent leakage caused by deformation due to temperature changes when the valve is under low-temperature conditions. Solenoid ValveThe assembly of the valve is also different from that of ordinary valves. The parts need to be strictly cleaned to remove any oil to ensure performance.

Working principle of cryogenic solenoid valve

Normally closed:When the coil is energized , the electromagnet core is attracted, the pressure relief hole is opened, the main piston is pushed by the medium pressure, the main valve port is opened, and the medium flows. When the coil is powered off, the main valve port is closed and the medium is cut off.

Normally open: When the coil is energized, the electromagnetic core is attracted, the pressure relief hole is closed, the main piston is pushed by the medium pressure, the main valve port is closed, and the medium is cut off. When the coil is powered off, the main valve opens and the medium flows.

Media used: liquid nitrogen, liquid ammonia, refrigerant and other ultra-low temperature liquids or gases.

Control mode: normally closed (open when powered on), Normally open (closed when powered on).

Electrical connection: lead wire or junction box type.

Using voltage: standard AC220V, DC24V, other voltages Optional.

Installation tips: It is best to keep the coil vertically upward. It can also be installed as needed.

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