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Solenoid valves for refrigeration systems

Solenoid valves are essential control components in modern refrigeration. They open or close the refrigerant flow automatically, helping systems operate safely, efficiently, and consistently. In professional environments—such as restaurants, hotels, catering facilities, ships, and other HoReCa locations—solenoid valves are commonly found in cooling units, reach-in freezers, and walk-in freezers where reliable temperature control matters every day.

Solenoid valves for refrigeration systems | Castel, Refco, Olab
Danfoss EVR 10 Solenoid Valve Ø 12 mm – Normally Closed Danfoss EVR 10 Solenoid Valve Ø 12 mm – Normally Closed

Danfoss EVR 10 Solenoid Valve Ø 12 mm NC

Achieve precise, reliable refrigerant control with the Danfoss EVR 10 Solenoid Valve. Designed for durability and fast actuation, this normally closed valve features a 10 mm orifice and 12 mm ports, making it ideal for demanding HVAC and refrigeration applications. 12 mm Ports: Standard connections for easy installation. 10 mm...
€229.40
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Danfoss EVR3 Solenoid Valve Ø 6 mm – NC Danfoss EVR3 Solenoid Valve Ø 6 mm – NC

Danfoss EVR3 Solenoid Valve Ø 6 mm – Normally Closed

Control refrigerant flow precisely with the Danfoss EVR3 Solenoid Valve. Featuring Ø 6 mm ports and a 3.2 mm nominal orifice, this NC valve provides rapid shut-off on power loss to safeguard your system. Built from durable brass in Denmark, it delivers reliable, leak-proof performance across a wide range of operating conditions. 6...
€119.12
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Danfoss AKV 10P1 Electronic Valve – 10 mm Inlet, 12 mm Outlet Danfoss AKV 10P1 Electronic Valve – 10 mm Inlet, 12 mm Outlet

Danfoss AKV 10P1 Electronic Solenoid Valve – 10 mm → 12 mm

Achieve precise, energy-efficient temperature control in your refrigeration and A/C systems with the Danfoss AKV 10P1 Electronic Solenoid Valve. Designed for a 10 mm inlet and 12 mm outlet, this valve delivers stepless modulation for stable superheat and rapid response under dynamic load conditions. Standard Connections: 10 mm...
€379.77
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Danfoss AKV 10P3 Electronic Valve – 10 × 12 mm Danfoss AKV 10P3 Electronic Valve – 10 × 12 mm

Danfoss AKV 10P3 Electronic Solenoid Valve – 10 mm to 12 mm

Achieve smooth, precise refrigerant metering with the Danfoss AKV 10P3 Electronic Solenoid Valve. Designed for a 10 mm inlet and 12 mm outlet, its stepless electronic control delivers optimal superheat management and rapid response in dynamic cooling applications. Standard Connections: 10 mm inlet and 12 mm outlet for easy system...
€415.60
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Danfoss AKV 10P4 Electronic Valve – 10 × 12 mm Danfoss AKV 10P4 Electronic Valve – 10 × 12 mm

Danfoss AKV 10P4 Electronic Solenoid Valve – 10 mm to 12 mm

Achieve accurate, energy-efficient refrigerant control with the Danfoss AKV 10P4 Electronic Solenoid Valve. Designed with 10 mm inlet and 12 mm outlet ports, its stepless electronic modulation delivers optimal superheat management and rapid responsiveness in dynamic cooling applications. Standard Connections: 10 mm inlet and 12 mm...
€379.77
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Danfoss AKV 10P5 Electronic Valve – 10 × 12 mm Danfoss AKV 10P5 Electronic Valve – 10 × 12 mm

Danfoss AKV 10P5 Electronic Solenoid Valve – 10 mm to 12 mm

Enhance system efficiency and temperature stability with the Danfoss AKV 10P5 Electronic Solenoid Valve. Featuring 10 mm inlet and 12 mm outlet ports, its stepless electronic modulation delivers fine-tuned refrigerant metering and rapid response in dynamic cooling applications. Standard Connections: 10 mm inlet and 12 mm outlet for...
€415.60
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Because refrigeration installations can differ widely (layout, refrigerant type, service access, pressure levels), solenoid valves come in multiple styles and configurations. Choosing the right version is important for both performance and long-term serviceability.

Different styles and configurations

Refrigeration solenoid valves are available in a range of shapes and body designs, depending on how and where they are installed. Common differences include:

  • Body design and port orientation (straight, angled, compact bodies for tight spaces)

  • Connection type (threaded or braze-in)

  • Coil configuration (with coil supplied, or valve body only)

This flexibility makes solenoid valves suitable for both new installations and replacements in existing systems.

Threaded vs braze-in solenoid valves

Threaded solenoid valves

Threaded versions are typically chosen when easy installation, removal, or replacement is important. They are convenient for service work, especially in systems where downtime needs to be minimal. Threaded models can be a good choice in applications where the system design allows enough space for tools and access.

Braze-in solenoid valves

Braze-in (solder/brazed) versions are widely used in refrigeration because they create a strong, compact, and durable connection. They are often preferred in professional cooling systems where vibration resistance and long-term reliability are key. Braze-in valves are also common when the piping layout is fixed and a clean, permanent connection is desired.

With coil or without coil

Solenoid valves are available:

  • With coil included: ideal when you want a complete, ready-to-install solution and guaranteed compatibility between valve and coil.

  • Without coil (valve body only): useful when a coil is already present, when you want to match a specific voltage, or when maintenance requires replacing only the valve body.

In refrigeration service, this matters because coils can be selected based on the electrical requirements of the installation (for example, different voltages depending on region or equipment type) and the environment (heat, moisture, continuous duty).

Trusted brands in refrigeration: Castel, Refco, Olab

For professional refrigeration applications, brands such as Castel, Refco, and Olab are widely used. They offer solenoid valves in multiple formats—threaded and braze-in—plus options supplied with coil or as valve bodies only. This makes it easier to match the correct valve to the system design, service approach, and available components.

Typical applications in HoReCa and marine environments

Solenoid valves are commonly used in:

  • Reach-in refrigerators and freezers

  • Walk-in cold rooms and freezer rooms

  • Refrigerated prep counters and storage units

  • Shipboard refrigeration systems and galleys

  • Commercial cooling systems where stable temperature control is required