Danfoss 034N0082 Regulator

The Danfoss 034N0082 Regulator (Type CPCE 12) is a professional-grade hot gas bypass regulator engineered to adapt compressor capacity to the actual evaporator load. Designed for high-performance HVACR capacity control, this 1/2" ODF solder connection valve is critical for maintaining stable evaporating pressures and preventing coil icing in commercial refrigeration and air conditioning systems. By diverting hot gas from the high-pressure side to the point between the evaporator and the thermostatic expansion valve, the CPCE 12 ensures consistent performance even during low-load conditions. This servo-operated regulator is compatible with a wide range of refrigerants, including R22, R134a, R404A, R507, and R407C, making it a versatile choice for service technicians managing commercial chillers or walk-in coolers. Its rugged brass construction supports a maximum working pressure of 406 psig and a regulation range of 0 to 85 psig, providing the technical precision required for modern system pressure stabilization.

Key Benefits:

• Superior Control Accuracy: The servo-operated design ensures precise management of refrigerant flow to match varying cooling demands.
• Prevents Evaporator Icing: Actively maintains a minimum evaporating pressure to eliminate coil freeze-ups and potential compressor damage.
• Enhanced Oil Return: By increasing gas velocity in the suction line, this capacity regulator facilitates better oil transport back to the compressor crankcase.
• High Versatility: Suitable for a broad range of HFC and HCFC refrigerants and features a wide operating temperature range from -58°F to 284°F.
• Improved Part-Load Efficiency: Reduces compressor short-cycling, extending the service life of critical mechanical components.

Common Questions:

How do I install the CPCE 12 for maximum efficiency?
For optimal performance, the Danfoss 034N0082 should be installed in a bypass line between the discharge and suction sides. It is highly recommended to use an LG liquid-gas mixer at the injection point to ensure a homogenous mixture of liquid and hot gas before it enters the evaporator.

What is the maximum pressure rating for this regulator?
This 1/2 inch hot gas bypass valve is rated for a Maximum Working Pressure (MWP) of 406 psig (28 bar), making it robust enough for most commercial refrigeration and AC applications.

Can this valve be used with modern low-GWP refrigerants?
Yes, the CPCE 12 series is verified for use with various modern blends, including R448A, R449A, and R452A, in addition to standard HVACR staples like R404A and R134a.

This item is not eligible for free shipping.

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.