The lower arm is equipped with a 1/4" needle drain valve for simplified maintenance and blowdown procedures

this shaft ensures concentricity and balanced torque transfer between the motor and the centrifugal wheels

Constructed from galvanized steel for corrosion resistance

This assembly is the primary driver for moving heated water through the heat exchanger

Precise Fit: Includes a threaded nut to ensure a vibration-resistant

Trane VAL8700 TXV 318820-201 The lower arm is equippedThe Trane VAL8700 is a high precision 2 Ton Thermal Expansion Valve (TXV) engineered for reliable refrigerant metering in split systems and heat pumps. This OEM Trane expansion valve is a critical component for maintaining the superheat balance of the evaporator coil, ensuring the R410A refrigerant flow is precisely adjusted based on load demand. Featuring a balanced port design, the VAL8700 provides stable control across varying ambient conditions,