High-Performance KAK-PRV50 Refrigerant Pressure Relief Valve
The KAK-PRV50 Refrigerant Pressure Relief Valve is a vital overpressure protection component specifically engineered for commercial refrigeration systems, cold storage units, and HVACR pressure vessels. When system operating pressure exceeds the pre-set threshold, the valve automatically opens to safely vent excess pressure, closing instantly once normal levels are restored to prevent eco-friendly refrigerant loss and system breakdown.
Premium Material Construction
- Valve Body: Heavy-duty HPb59-1 Brass for superior corrosion resistance and high-pressure durability.
- Sealing Element: Premium PTFE ensures a tight, leak-free seal under extreme thermal conditions.
- Spring: High-tensile alloy spring steel ensures precise calibration and consistent set-pressure repeatability.
Technical Specifications
| Parameter | Value / Specification |
|---|---|
| Series Model | KAK-PRV50 Series |
| Nominal Pressure (PN) | 5.0 MPa (725 psi) |
| Shell Test Pressure | 7.5 MPa |
| Operating Temperature | -40°C to +105°C |
| Applicable Mediums | Refrigerants (R22, R134a, R404A, R410A, etc.), Water, Non-corrosive Oil |
| Tightness Attribute | Leakage rate ≤ 0.1 oz/year via halogen leak detection |
Frequently Asked Questions (FAQ)
Q1: What refrigerants are compatible with the KAK-PRV50 pressure relief valve?
A: The valve is fully compatible with standard HCFC and HFC refrigerants including R22, R134a, R404A, and R410A, as well as non-corrosive cooling oils and industrial water systems.
Q2: What is the leakage rate and sealing performance of this relief valve?
A: Thanks to the high-grade PTFE seals, the valve passes strict 2-minute air pressure tests and achieves a halogen leak-test rating of ≤ 0.1 oz/year, ensuring zero refrigerant wastage during normal operations.
Q3: Can the cracking/set pressure be customized?
A: Yes, absolutely. As a dedicated HVACR component supplier, KAK can factory-calibrate and laser-engrave specific cracking or set pressures based on your system design requirements up to our maximum 5.0MPa nominal rating.
Q4: Is this refrigerant relief valve suitable for low-temperature applications?
A: Yes. The KAK-PRV50 series is certified to operate reliably down to -40°C, making it ideal for commercial walk-in freezers, industrial cold storage facilities, and low-temperature liquid receivers.