Refrigeration Unloading Valve DPR-343D Copper Tube Fitting

        The DPR-343D hot gas bypass valve is an essential pressure control component for HVAC and commercial refrigeration systems. It automatically adjusts hot refrigerant gas flow to stabilize evaporating pressure under variable load conditions, effectively preventing compressor low-pressure overload, liquid return and frequent startup & shutdown. Adopting integrated brass shell and seamless copper welding pipelines, the valve features stable pressure regulation, high pressure resistance and long service life, widely used to balance load for various cooling equipment.

• Model DPR-343D, built-in pressure sensing control structure
• Integrated brass valve body, anti-corrosion & high pressure resistant
• Seamless copper connecting pipes, welding installation design
• Automatic hot gas bypass to stabilize evaporator pressure
• Effectively avoids compressor low-load liquid slugging
• Small compact size, easy pipeline welding mounting
• Stable performance under continuous low-temperature operation

Item	Parameter
Model	DPR-343D
Compatibility	Multiple common refrigerants HVAC refrigeration systems
Working Pressure	Max 7 MPa
Operating Temperature	-40 °C ~ +60 °C
Mounting	Copper pipe welding installation
Product Length	95 mm
Product Width	42 mm
Product Height	45 mm
Product Weight	Approx. 0.32 kg
Country of Origin	Japan
HS code	84189990
Shipping Length	160 mm
Shipping Width	90 mm
Shipping Height	70 mm

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DPR-263D

 

 

DPR-343D

 

 

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EVD0000T50

 

 

FDF-603

 

 

NRV-1006

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Application Scope

       

      Model DPR-343D hot gas bypass valve is applicable to cold storage, supermarket display cabinet, air-cooled chiller, industrial refrigeration unit, heat pump and other HVAC refrigeration equipment using conventional refrigerants.

     We provide full series of refrigeration and HVAC spare parts, including control display panels, temperature controllers, sensors, power modules and industrial electrical accessories.

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