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Bard part number 5651-094 is an OEM thermal expansion valve (TXV) with 3/8 in x 3/8 in connections, designed to meter refrigerant flow into the evaporator so your Bard wall-mount system can maintain proper superheat and stable cooling. A correctly matched TXV helps prevent coil starvation or flooding and supports reliable compressor operation, making it a smart replacement when you are seeing hunting, poor capacity, or inconsistent suction pressures. Because fit and refrigerant match matter, confirm your unit model and refrigerant type before ordering so the valve capacity and connection sizing align with the original Bard specification.