Marathon K381 Motor 318172-701 for proper operation

for proper operation

this valve is engineered for durability and reliable cycling

it is recommended to mount the valve vertically within a NEMA 1 enclosure to ensure optimal performance and long-term reliability of the internal coil

This means the internal plug moves upward to the seat to shut off flow

this Permanent Split Capacitor (PSC) motor pulls a low 1

Marathon K381 Motor 318172-701 for proper operationThe Marathon K381 is a high performance 1 2 HP three phase motor engineered for heavy duty HVACR applications, specifically within commercial fan and blower systems. This 56 frame blower motor operates at a synchronous 1725 RPM, delivering consistent torque for both belt drive fan motor and direct drive configurations. Designed with an open drip proof (ODP) enclosure, it ensures optimal air handler motor cooling while protecting internal components