Bypass Valve, Brass 1/4in ODF Inlet 3/8in ODF Outlet Constant Pressure Expansion Valve LFDBV 1.0 Cooling Energy Regulator for AC Compressors and Cooling Systems

Product Description:The LFDBV-1.0 refrigeration expansion valve refrigeration charging valve maintains precise pressure control in HVAC systems. This brass pressure regulator valve features 1/4" inlet and 3/8" outlet ODF connections, with automatic adjustment up to 2.8MPa. Ideal for compressor systems needing stable evaporation pressure and energy regulation.Item Type: Refrigeration Energy Regulator ValveModel: LFDBV-1.0Material: BrassInlet Connection: 1/4in ODFOutlet Connection: 3/8in ODFMaximum Working Pressure: 2.8MPaFunction: LFDBV bypass valve, also known as automatic expansion valve, hot gas bypass valve, or pressure regulating expansion valve, is designed to automatically adjust the valve opening or closing when there is a change in outlet pressure, maintaining the outlet pressure constant at the set value, unaffected by the inlet pressure within a certain range.Package List：1 x Refrigeration Energy Regulator Valve1 x ManualNote:1. When welding, the valve body should be wrapped in a wet towel and not welded horizontally (if it must be welded horizontally, turn the adjusting block clockwise 1.5 turns before welding), the flame must not face the valve body, ensuring that the valve body temperature does not exceed 100℃. 2. Adjust the outlet pressure: clockwise to increase, counterclockwise to decrease, approximately 0.8 bar per turn.

• Precise Pressure Regulation:​​ The refrigeration expansion valve maintains constant evaporation pressure to protect compressor systems. This pressure regulator valve automatically adjusts to keep suction pressure above minimum limits. The 2.8MPa maximum working pressure ensures reliable operation in demanding conditions.
• ​​Optimized System Performance:​​ The HVAC control valve improves energy efficiency by maintaining proper refrigerant flow. This expansion device reduces compressor cycling while delivering consistent cooling capacity. Systems operate more effectively with this automatic pressure regulation.
• Standard ODF Connections:​​ Featuring 1/4" inlet and 3/8" outlet flare connections, this refrigeration valve integrates with most systems. The standardized fittings simplify installation without special adapters. Technicians appreciate the compatibility with common HVAC components.
• Multi-Function Design:​​ Serving as bypass valve, pressure regulator and expansion device, this unit handles multiple system requirements. The automatic adjustment works in AC compressors, refrigeration systems and air dryers. Its compact size fits easily in space-constrained installations.
• ​​Brass Construction:​​ Made from solid brass, this refrigeration pressure expansion valve withstands high-pressure refrigerant applications. The material resists erosion while maintaining precise pressure control. Professionals trust this durable construction for long service life.