Diversitech TXVHE-404A-507-14F Txv R-404A R-507

Product Description

The DIVERSITECH TXVHE-404A-507-14F is a thermostatic expansion valve (TXV) designed to regulate refrigerant flow into the evaporator and control superheat at the evaporator outlet. Compatible with R-404A and R-507 refrigerants, this valve maintains precise superheat levels to protect the compressor and optimize system efficiency. SAE flare connections measuring 0.38 inches, 0.5 inches, and 0.3 inches allow for direct integration into commercial and low-temperature refrigeration systems. Licensed refrigeration technicians install this component as part of routine system servicing or refrigerant circuit upgrades.

This TXV is suited for commercial refrigeration applications using R-404A or R-507 refrigerant. Typical installations include walk-in coolers, reach-in display cases, and low-temperature refrigeration equipment where precise refrigerant metering is critical. The valve works within the refrigerant circuit between the liquid line and the evaporator inlet, responding to bulb-sensed evaporator outlet temperature to continuously adjust refrigerant flow and maintain target superheat.

Key Features

• Compatible with R-404A and R-507 refrigerants for commercial refrigeration applications
• SAE flare connections at 0.38 inches, 0.5 inches, and 0.3 inches for direct field installation
• Controls refrigerant superheat at the evaporator outlet to protect compressor integrity
• Regulates refrigerant flow rate into the evaporator for stable system operation
• Designed as a replacement or upgrade component in low-temperature refrigeration circuits

Compatibility

Designed for use in refrigeration systems charged with R-404A or R-507 refrigerant, featuring SAE flare connections consistent with standard commercial refrigeration piping configurations.

Installation Notes

Installation should be performed by a licensed HVAC-R technician holding an EPA Section 608 certification. Recover all refrigerant and depressurize the system before removing the existing valve. Verify the bulb is properly positioned and secured at the evaporator outlet per the system manufacturer's requirements. After installation, check superheat values to confirm proper valve operation before returning the system to service.