Bard HVAC 5651-191BX Expansion Valve

The Bard 5651-191BX Expansion Valve is a critical thermostatic expansion valve (TXV) designed for precise refrigerant metering in Bard air conditioners and heat pump systems. Featuring 3/8" x 3/8" connection sizes, this component regulates liquid refrigerant flow into the evaporator coil based on cooling load requirements. This specific part is a direct replacement, confirmed identical to 5651-191, ensuring a seamless fit for technicians performing field repairs. By maintaining the correct superheat, the Bard HVAC 5651-191BX helps prevent liquid slugging of the compressor while maximizing thermal heat transfer. Built to withstand the rigors of residential and light commercial HVAC applications, this valve provides the consistent pressure drop necessary for optimal efficiency in high-performance cooling cycles. For contractors, using genuine Bard replacement parts ensures compatibility with factory specifications and maintains the integrity of the original system design.

Technical Benefits for Contractors

• Precise Flow Control: Maintains optimal evaporator superheat to protect the compressor from liquid return.
• Universal Application: Compatible with a wide range of Bard wall-mount units and heat pump configurations.
• Field-Ready Design: Standard 3/8" x 3/8" fittings allow for straightforward brazing and installation.
• System Efficiency: Enhances energy efficiency by adjusting refrigerant flow in real-time based on thermal demand.

Common Questions

Is the 5651-191BX interchangeable with the 5651-191?
Yes, the 5651-191BX is the exact same component as the 5651-191, sharing the same technical specifications and performance curve.

What are the connection sizes for this TXV?
This Bard expansion valve features a 3/8" inlet and a 3/8" outlet for standard copper line integration.

Does this valve work for both AC and heat pump units?
The Bard 5651-191BX is designed for use in both cooling-only and heat pump models where 3/8" metering is specified.

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.