Key Benefits Linear Resistance Response: The PTC silicon sensor element provides predictable resistance changes

reducing maintenance calls and system downtime

Smith 100208241 Manual Reset Switch is a critical OEM safety component designed for high-efficiency hydronic boilers and commercial water heaters

Always match the voltage and wattage to the existing valve nameplate

The Schneider Electric 22-138 Gauge Adaptor is a critical fitting designed for precise pneumatic system diagnostics and calibration

Bard HVAC 5651-191BX Expansion Valve 30067439-890 Key Benefits Linear Resistance Response: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