Thermostatic expansion valves (TXV), electronic expansion valves (EXV), automatic expansion valves (AXV), and balanced port expansion valves for all main applications are all in stock at UAE-based expansion valve suppliers and HVACR wholesalers. For accurate metering of refrigerant flow into evaporators in systems ranging from large-scale industrial cooling systems and chiller plants to home air conditioners and commercial refrigeration, these refrigeration and air conditioning components are crucial. Leading brands that guarantee dependability in the tough climate of the United Arab Emirates are Danfoss, Emerson, Fujikoki, and Sanhua.
To serve the thriving MEP industry and facility management sector, services include technical selection support, system diagnostics, after-sales service, and supply of authentic HVAC spare parts throughout the Emirates.
Typical UAE Price Range (AED):
TXV for Split AC (1.5-5 Ton): 80 – 350/pc
• EXV for VRF/Chiller Systems: 450 – 2,500/pc
• AXV for Commercial Refrigeration: 120 – 600/pc
• Capillary Tubes for Small Refrigerators: 15 – 80/pc
• Expansion Valve Repair Kits: 50 – 200/kit.
Note: Brand, order volume, tonnage/capacity, valve type, and refrigerant compatibility (R410A, R134a, R404A, and R32) all affect pricing.
| Parameter | Typical Specifications & Options |
|---|---|
| Type | Thermostatic (TXV), Electronic (EXV), Automatic (AXV) |
| Connection Type | Flanged, Sweat (Brazed), ODF/ODM Flare |
| Body Material | Brass, Stainless Steel |
| Operating Temperature Range | Typically -40°C to +60°C (varies by model) |
| Refrigerant Compatibility | R410A, R32, R134a, R404A, R507, R22 (replacement) |
| Capacity Range | 0.5 kW to 700 kW (depending on valve type and model) |
| Maximum Operating Pressure (MOP) | Up to 55 bar for R410A systems |
| Electrical Connection (for EXV) | Stepper Motor, 2-phase, 12V DC |
A metering device called an expansion valve regulates the flow of high-pressure liquid refrigerant into the low-pressure evaporator, where it cools and expands to facilitate the cooling process through heat absorption.
Common symptoms include variable suction pressure, odd hissing noises, freezing of the AC system (ice on the evaporator coil), inadequate cooling, or no cooling at all.
Thermostatic expansion valves, or TXVs, are mechanical devices that sense the temperature and pressure of an evaporator using a bulb and diaphragm. An EXV (Electronic Expansion Valve) is controlled by the system's controller for more precise, responsive, and economical refrigerant flow regulation.
Yes, a broken expansion valve can make your air conditioning system work harder and longer to reach the appropriate temperature, which can significantly raise your electricity costs.
There is no fixed timetable. Expansion valves are replaced when they fail. However, they should be inspected during major AC servicing or when symptoms of failure appear. A malfunctioning compressor or contaminants in the refrigerant can shorten their lifespan.
