Product Overview of Liquid Ammonia Solenoid Valves

Liquid Ammonia solenoid valves (low-temperature resistant series) are AC/DC-powered automatic valves, mainly applicable for control systems of pipelines carrying liquid ammonia, liquid nitrogen, liquid oxygen, ultra-low temperature refrigerants, and other media. As low-temperature resistant solenoid valves, they are widely used in fields such as refrigeration equipment, aerospace, marine heavy industry, petrochemicals, power generation, chemical industry, light industry, machinery, scientific research, drying equipment, and automatic pipeline medium control.

Previously applicable to ammonia systems, HCFC/HFC refrigerants, clean water, and low-viscosity engine oil, the series now expands its scope to cover cryogenic and corrosive fluids, combining high reliability and wide adaptability.

Key Features of Liquid Ammonia Solenoid Valves

Versatile compatibility: Suitable for liquids, gases, and oils, expanding the application range.

Specialized plastic-sealed coil: Enhances valve reliability with waterproof and moisture-proof performance.

CNC-machined components: Ensures high precision and operational reliability.

Original imported sealing materials: Service life is ten times that of similar products.

Flexible on-site installation: Fast response speed; valve body adopts hot forging process with an aesthetic appearance.

Unique design: Elegant appearance, piston-type structure for stable performance; low-temperature resistant materials ensure excellent sealing.

High-quality stainless steel body: Adopts diaphragm seal structure, enabling low pressure difference startup (0.03MPa).

Cold-bonded sealed moisture-proof excitation coil: Prevents medium erosion.

Imported PTFE-reinforced composite diaphragm: Ensures corrosion resistance and sealing stability.

Technical Parameters of Liquid Ammonia Solenoid Valves

Nominal Diameter: DN1~DN1000

Valve Body Material: Stainless steel 304/316, 316L

Operating Temperature Ranges: -200℃~100℃, -40℃~+80℃

Protection Performance: Corrosion-resistant, waterproof, explosion-proof (Exd IICT5, corrected from "E4xd II CT5" for standardization)

Wiring Method: Terminal block type, lead wire type, plug type

Control Mode: Normally Open (NO), Normally Closed (NC), Self-holding type

Power Supply Voltage: DC12~DC24V, AC110V~AC220V, etc. (supports custom voltages)

Applicable Medium: Liquid nitrogen, liquid ammonia, liquid oxygen, alcohol, refrigerant liquids/gases, and other corrosive fluids; ammonia systems, HCFC/HFC refrigerants, clean water, engine oil with viscosity ≤4°E or <50CSt (technical requirements required for viscosity >50CSt)

Connection Method: Internal thread, flanged (external thread and special interfaces are customizable or available with adapters)

Maximum Operating Pressure: 6.4MPa (64bar)

Leakage: Zero

Note: Customized models available based on technical requirements; suitable for ultra-low temperature and high-corrosion working conditions.