Product details
Danfoss Spare Part: Main Spring for WVS 65 & WVTS 65 | 016D0577
Product Description:
The WVS and WVTS series are pressure-operated and thermostatic water valves used extensively in the UAE for cooling condensers in large refrigeration plants and industrial processes. Over years of operation in high-demand environments—such as district cooling or industrial manufacturing—the internal spring can lose its tension or suffer from fatigue. The 016D0577 spring is engineered to restore the valve to its original factory performance. In the UAE—where consistent water flow is vital to maintaining system efficiency during extreme heat—using an authentic Danfoss spring ensures that the valve modulates correctly, preventing water wastage and ensuring stable condensing pressures.
Key Features & Benefits:
- Precision Tension: Calibrated specifically for the WVS 65 and WVTS 65 bodies to maintain the correct opening and closing pressure/temperature differentials.
- High-Grade Material: Manufactured from fatigue-resistant steel, designed to withstand the high-cycle operations of UAE industrial cooling circuits.
- OEM Reliability: Guaranteed fit and performance, eliminating the risks associated with non-genuine or universal springs.
- Restores Valve Accuracy: Essential for maintaining the energy efficiency of the refrigeration system by ensuring the water valve reacts accurately to pressure changes.
- Longer Service Life: Designed to resist corrosion and wear, even in systems using treated industrial water common in Dubai and Abu Dhabi.
Technical Specifications:
| Specifications | Value |
| Manufacturer | Danfoss |
| Type | Spare Part (Spring) |
| Code Number | 016D0577 |
| Compatible Valves | WVS 65 / WVTS 65 |
| Valve Size | 2-1/2 inch (DN 65) |
| Material | Spring Steel |
| Weight | ~0.45 kg |
FAQs:
- Q: When should I replace the spring in my WVS 65 valve?
- A: It is recommended to replace the spring during a major overhaul or if the valve is failing to close completely or show inconsistent regulation despite other parts being intact.
- Q: Can this spring be used for the WVS 50?
- A: No, the 016D0577 is specifically sized for the 65mm (DN 65) version. Smaller valves use different spring part numbers.
- Q: Is it difficult to install this part?
- A: Installation requires partial disassembly of the valve. In the UAE, it is recommended that this be performed by a qualified HVAC/R technician to ensure the valve is re-calibrated correctly after assembly.



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