Expansion valve

Castel Expansion Valves are precision components designed to control and regulate the flow of refrigerant in refrigeration and air conditioning systems. These valves reduce refrigerant pressure from the condensation stage to the evaporation stage, ensuring efficient heat transfer and optimal system performance.

Working as proportional control devices, expansion valves automatically adjust refrigerant flow according to thermal load changes in the evaporator, helping maintain stable system operation and energy efficiency.

Castel offers a wide range of expansion valves with different capacities, working pressures, temperature ranges, and connection types to suit various HVAC and refrigeration applications. These valves are compatible with fluorinated refrigerants such as HCFC, HFC, and HFO, as well as natural refrigerants like hydrocarbons (HC) and CO₂.

The product family includes both Thermostatic Expansion Valves (TXV) and Solenoid (PWM) Expansion Valves, which can be combined with multiple coil types offering different power outputs and compatible with common voltage requirements.

Key Features

• Precise refrigerant flow control

• Reduces pressure from condensation to evaporation level

• Automatic adjustment based on thermal load

• Available in various capacities and connection types

• Compatible with HCFC, HFC, HFO, HC, and CO₂ refrigerants

• Available as Thermostatic and Solenoid (PWM) valves

• Suitable for different voltage and coil configurations

Applications

• Air conditioning systems

• Refrigeration systems

• Chillers and cooling equipment

• Commercial and industrial HVAC systems

Benefits

• Improves system efficiency and performance

• Ensures stable evaporator operation

• Wide compatibility with modern refrigerants

• Reliable control under varying load conditions