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Castel

ItalyHVAC & Refrigeration

Castel is an Italian manufacturer of refrigeration control components and solenoid valves for commercial and industrial cooling systems. The brand specializes in direct-acting and servo-controlled solenoid valves, pressure differential controllers, and thermostatic expansion devices used in refrigeration circuits where precise flow control and pressure regulation are required. Castel valves are rated as normally closed, meaning they default to a sealed state and open only when energized, providing fail-safe operation in refrigeration loops. The product family includes the MA series (direct-acting solenoid valves), MD series (pressure differential controllers), and MS series (servo-controlled direct-acting valves), all designed to handle the thermal cycling and vibration inherent in industrial refrigeration duty. Connection standards are ODF (oxygen-free copper tube) or flare types, allowing integration into existing systems without special adapters. These components are used in commercial refrigeration cabinets, walk-in coolers, chiller units, and process cooling applications where solenoid-actuated isolation or modulation is required

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Tentang Castel

Castel is an Italian manufacturer of refrigeration control components and solenoid valves for commercial and industrial cooling systems. The brand specializes in direct-acting and servo-controlled solenoid valves, pressure differential controllers, and thermostatic expansion devices used in refrigeration circuits where precise flow control and pressure regulation are required. Castel valves are rated as normally closed, meaning they default to a sealed state and open only when energized, providing fail-safe operation in refrigeration loops. The product family includes the MA series (direct-acting solenoid valves), MD series (pressure differential controllers), and MS series (servo-controlled direct-acting valves), all designed to handle the thermal cycling and vibration inherent in industrial refrigeration duty. Connection standards are ODF (oxygen-free copper tube) or flare types, allowing integration into existing systems without special adapters. These components are used in commercial refrigeration cabinets, walk-in coolers, chiller units, and process cooling applications where solenoid-actuated isolation or modulation is required

Aplikasi Umum

  • Commercial walk-in coolers and freezers — Castel MA 062S solenoid valves for on-off liquid line isolation and suction line modulation
  • Industrial chiller units — Castel MD 062 pressure differential controllers for automatic capacity modulation in large cooling loops
  • Retail refrigerated display cabinets — Castel MC102227 24V AC/DC solenoid valves for remote defrost and thermal expansion control
  • Process cooling systems — Castel MS servo-controlled valves for proportional refrigerant flow in multi-zone or variable-load applications
  • HVAC secondary cooling circuits — Castel solenoid valves rated to 25–30 bar for chilled-water or low-pressure-refrigerant bypass circuits
  • Beverage and food production cooling — Castel ODF-connection solenoid valves for direct refrigerant control in modular or portable cooling skids
Asal: Diproduksi di Italy

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Pertanyaan yang Sering Diajukan

Pertanyaan umum tentang Castel dari 3G Electric.

What is the maximum pressure differential rating for Castel MA and MD series solenoid valves?

Castel MA and MD series valves are rated to handle a maximum pressure differential of 25 bar. The MS servo-controlled series supports differential pressures up to 30 bar on opening, with a 2 bar differential during modulation. These ratings are suitable for most commercial refrigeration circuits operating at medium to high pressures.

What voltage options are available for Castel solenoid valves in our catalog?

Castel valves are supplied in 24V AC, 24V DC, 110V AC, and 230V AC configurations. Selection depends on local power supply standards and control system architecture. 24V configurations are common in modern control panels, while 110V and 230V are used in legacy installations or where direct-line voltage actuation is preferred.

What connection sizes does Castel offer for refrigeration solenoid valves?

Castel offers 1/8" flare, 6 mm ODF, and 1/4" ODF connections. The smaller 1/8" flare and 6 mm ODF are typical for light-to-medium refrigeration circuits, while 1/4" ODF is used in larger cooling systems and chiller units. ODF fittings are copper-to-tube push-connect; flare connections use standard SAE flare adapters.

Are Castel solenoid valves normally open or normally closed?

Castel MA, MD, and MS series valves supplied through us are normally closed, meaning the valve seat is sealed when de-energized. When electrical power is applied, the solenoid coil lifts the plunger, opening the valve and allowing refrigerant flow. This fail-safe design prevents unintended cooling loss if power is interrupted.

What is the difference between Castel MA, MD, and MS series solenoid valves?

The MA series are direct-acting solenoid valves with simple on-off switching and a 25 bar differential limit. The MD series are pressure differential controllers that regulate flow in response to inlet/outlet pressure imbalance. The MS series are servo-controlled direct-acting valves with modulating capability, allowing proportional flow control and supporting up to 30 bar differential pressure.

Can Castel solenoid valves be used in both AC and DC control circuits?

Yes. Castel manufactures separate AC-rated coils (24V, 110V, 230V AC) and DC-rated coils (24V DC). The coil type determines compatibility with your control system; AC coils will not function properly on DC power and vice versa. Select the coil voltage and type matching your refrigeration control panel or PLC output.