Daikin-McQuay 564-664 Expansion Valve
The Daikin-McQuay 564-664 Expansion Valve is a critical liquid metering device engineered for precise refrigerant flow control in industrial HVAC and refrigeration systems. Designed to maintain constant superheat at the evaporator outlet, this thermal expansion valve (TXV) optimizes heat transfer efficiency across varying load conditions. It features a robust thermostatic element and a calibrated orifice assembly to prevent liquid slugging, ensuring the compressor remains protected during low-load operations. For contractors performing HVAC system maintenance or full component replacements, the 564-664 provides the necessary modulation for refrigerant flow control in high-capacity Daikin and McQuay air handling units and chillers. Whether you are troubleshooting evaporator coil freezing or updating a legacy system, this direct replacement expansion valve ensures the system operates within its engineered pressure and temperature parameters, maintaining stable subcooling and superheat levels for peak mechanical performance.
Key Benefits for Technicians- Precise Superheat Regulation: Maintains optimal refrigerant charge levels to prevent evaporator floodback.
- OEM Compatibility: Exact fit for specific Daikin-McQuay refrigeration parts, reducing field modification time.
- Enhanced System Stability: Dampens hunting and oscillation in the refrigerant circuit during rapid load changes.
- Industrial-Grade Construction: Built to withstand high-pressure fluctuations common in commercial HVACR applications.
How do I confirm the 564-664 is the correct TXV for my chiller?
Cross-reference the part number with your unit’s data plate or technical manual; this valve is specifically calibrated for certain Daikin-McQuay tonnage requirements and refrigerant types.
What are the symptoms of a failing 564-664 expansion valve?
Common indicators include erratic high-side pressures, excessive evaporator frosting, or high superheat readings that lead to insufficient cooling capacity.
Can this valve be adjusted in the field?
While factory-set for specific superheat parameters, qualified technicians should verify superheat at the sensing bulb to ensure the valve is modulating correctly for the specific application.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $403.44
-65%$403.44
$141.20Daikin-McQuay 564-664 Expansion Valve
The Daikin-McQuay 564-664 Expansion Valve is a critical liquid metering device engineered for precise refrigerant flow control in industrial HVAC and refrigeration systems. Designed to maintain constant superheat at the evaporator outlet, this thermal expansion valve (TXV) optimizes heat transfer efficiency across varying load conditions. It features a robust thermostatic element and a calibrated orifice assembly to prevent liquid slugging, ensuring the compressor remains protected during low-load operations. For contractors performing HVAC system maintenance or full component replacements, the 564-664 provides the necessary modulation for refrigerant flow control in high-capacity Daikin and McQuay air handling units and chillers. Whether you are troubleshooting evaporator coil freezing or updating a legacy system, this direct replacement expansion valve ensures the system operates within its engineered pressure and temperature parameters, maintaining stable subcooling and superheat levels for peak mechanical performance.
Key Benefits for Technicians- Precise Superheat Regulation: Maintains optimal refrigerant charge levels to prevent evaporator floodback.
- OEM Compatibility: Exact fit for specific Daikin-McQuay refrigeration parts, reducing field modification time.
- Enhanced System Stability: Dampens hunting and oscillation in the refrigerant circuit during rapid load changes.
- Industrial-Grade Construction: Built to withstand high-pressure fluctuations common in commercial HVACR applications.
How do I confirm the 564-664 is the correct TXV for my chiller?
Cross-reference the part number with your unit’s data plate or technical manual; this valve is specifically calibrated for certain Daikin-McQuay tonnage requirements and refrigerant types.
What are the symptoms of a failing 564-664 expansion valve?
Common indicators include erratic high-side pressures, excessive evaporator frosting, or high superheat readings that lead to insufficient cooling capacity.
Can this valve be adjusted in the field?
While factory-set for specific superheat parameters, qualified technicians should verify superheat at the sensing bulb to ensure the valve is modulating correctly for the specific application.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Daikin-McQuay 564-664 Expansion Valve is a critical liquid metering device engineered for precise refrigerant flow control in industrial HVAC and refrigeration systems. Designed to maintain constant superheat at the evaporator outlet, this thermal expansion valve (TXV) optimizes heat transfer efficiency across varying load conditions. It features a robust thermostatic element and a calibrated orifice assembly to prevent liquid slugging, ensuring the compressor remains protected during low-load operations. For contractors performing HVAC system maintenance or full component replacements, the 564-664 provides the necessary modulation for refrigerant flow control in high-capacity Daikin and McQuay air handling units and chillers. Whether you are troubleshooting evaporator coil freezing or updating a legacy system, this direct replacement expansion valve ensures the system operates within its engineered pressure and temperature parameters, maintaining stable subcooling and superheat levels for peak mechanical performance.
Key Benefits for Technicians- Precise Superheat Regulation: Maintains optimal refrigerant charge levels to prevent evaporator floodback.
- OEM Compatibility: Exact fit for specific Daikin-McQuay refrigeration parts, reducing field modification time.
- Enhanced System Stability: Dampens hunting and oscillation in the refrigerant circuit during rapid load changes.
- Industrial-Grade Construction: Built to withstand high-pressure fluctuations common in commercial HVACR applications.
How do I confirm the 564-664 is the correct TXV for my chiller?
Cross-reference the part number with your unit’s data plate or technical manual; this valve is specifically calibrated for certain Daikin-McQuay tonnage requirements and refrigerant types.
What are the symptoms of a failing 564-664 expansion valve?
Common indicators include erratic high-side pressures, excessive evaporator frosting, or high superheat readings that lead to insufficient cooling capacity.
Can this valve be adjusted in the field?
While factory-set for specific superheat parameters, qualified technicians should verify superheat at the sensing bulb to ensure the valve is modulating correctly for the specific application.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
