Refrigeration System
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This page explains how Expansion Valve is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.
A refrigerant flow control device that regulates the amount of liquid refrigerant entering the evaporator.
Technical details and manufacturing context for Expansion Valve
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Nominal Capacity | 1–10 kW | Cooling capacity at standard conditions |
| Maximum Working Pressure | 2.5 MPa | Exceeding may cause permanent deformation |
| Operating Temperature Range | -40–85 °C | Below -40°C seals may crack |
| Flow Control Precision | ±5 % | Tolerance of setpoint |
| Response Time | 0.5–2 s | Time to reach 90% of setpoint |
| Leakage Rate | ≤0.1 g/a | Refrigerant leakage per yearISO 5208 |
| Electrical Rating | 24 ±10% V DC | For solenoid-operated valves |
| Power Consumption | 5–15 W | For solenoid coil |
| Ingress Protection | IP54–IP65 | IP65 for outdoor useIEC 60529 |
| Body Material | 316 SS | Corrosion resistanceASTM A240 |
| Connection Size | 6–22 mm | ODF or flare connectionsISO 228-1 |
| Weight | 0.5–2.5 kg | Depending on size and actuator |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is essential for the following industrial systems and equipment:
| pressure: | Up to 500 psi (34.5 bar) |
| flow rate: | 0.5 to 100 lb/hr (0.23 to 45.4 kg/hr) |
| temperature: | -40°C to +85°C |
| slurry concentration: | Not applicable - designed for clean refrigerant systems only |
Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.
Quoted from the published standard.
3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.
Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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The expansion valve regulates the flow of liquid refrigerant into the evaporator, creating a pressure drop that causes the refrigerant to expand and partially vaporize. This facilitates efficient heat absorption and maintains proper superheat at the evaporator outlet.
Expansion valves are commonly made from brass, stainless steel, and copper. The body material may be stainless steel 316, which offers corrosion resistance. Always verify the specific material for your application.
Typical parameters include a nominal capacity of 1–10 kW, operating pressure of 1.0–1.6 MPa, maximum working pressure of 2.5 MPa, and operating temperature range of -40 to 85 °C. These are reference ranges and must be confirmed for the specific model.
Selection should be based on system requirements such as cooling capacity, refrigerant type, operating pressure and temperature, connection size, and control method. Always consult the manufacturer's data and verify that the valve meets the required standards.
Editorial classification, named public sources where available, and source-reviewed manufacturer records.
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