This design avoids the airflow restrictions often found in inferior aftermarket parts

technicians recommend replacing the full assembly if there is significant oxidation or if the orifice has been enlarged

The Trane VAL10581 TXV

This heavy-duty motor is built to handle the rigorous demands of seasonal temperature fluctuations

Heavy-Duty Construction: Built to withstand high-torque start-ups and continuous blower operation

Watts 0559109 Valve 326010-701 This design avoids the airflowThe Watts 0559109 (Model LFL1170M2 US) is a high performance 3 4 inch thermostatic mixing valve engineered for precision temperature regulation in domestic hot water and radiant heating systems. Featuring a lead free brass construction, this valve utilizes a solid wax hydraulic thermostat and a double throttling design to provide a sensitive, rapid response to inlet temperature fluctuations, maintaining a consistent outlet temperature within + 3F.