Danfoss 034L0144 Regulator

When you are managing evaporator load variations, the Danfoss 034L0144 (Type KVC 22) is the industry standard for maintaining a stable suction pressure. This hot gas bypass regulator is engineered to prevent short-cycling by injecting high-pressure discharge gas into the low-pressure side when the evaporator load drops below a critical point. Featuring high-grade 7/8" ODF solder connections and a hermetically sealed stainless steel bellows, it ensures leak-proof operational integrity in high-demand refrigeration and air conditioning systems.

For technicians in the field, the KVC 22 regulator offers a versatile regulating range of 3 to 87 psig, factory-preset at 29 psig to cover a broad spectrum of HVACR pressure control requirements. Its internal pulsation damping mechanism protects the seat and bellows from discharge-induced vibrations, extending the service life of both the valve and the compressor. Rated for a maximum working pressure of 406 psig and compatible with various refrigerants—including R22, R134a, R404A, R407C, and R507—this regulator is a critical component for achieving precise compressor capacity modulation without sacrificing system efficiency.

• Precise Pressure Regulation: Adjustable settings allow for tight control over compressor suction pressure to match actual evaporator loads.
• Pulsation Damping: Integrated design absorbs high-frequency pulsations common in hot gas bypass lines, ensuring stable performance.
• Robust Construction: Features a hermetic brazed design and stainless steel bellows for superior durability in harsh environments.
• Extensive Fluid Compatibility: Suitable for use with HCFC, HFC, and modern low-GWP refrigerants like R1234ze and R513A.
• Low Pressure Drop: Optimized internal geometry ensures high Kv values and efficient flow characteristics.

• Is the Danfoss KVC 22 compatible with R410A? While specifically optimized for refrigerants like R22 and R404A, always verify your system's maximum working pressure against the KVC 22's 406 psig limit before installation.
• Where should the regulator be installed? This regulator is designed for installation in a bypass line between the discharge line and the suction line to provide replacement capacity.
• Does this valve require external equalization? No, the KVC series is an internally equalized regulator that responds directly to the pressure at the valve outlet.

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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.