Description
The Sporlan Controls 4278-00 Normally Closed Solenoid Valve regulates refrigerant flow by remaining closed until energised allowing control passage when electrical input is applied. It operates through a pilot-operated mechanism with an internal plunger to coil activation, while the manual override feature enables temporary opening during servicing without power in HVAC systems such as commercial refrigeration and air conditioning units. Configured with 3/8″ ODF connections, it is fitted along the liquid line for proper flow control. Its operation supports precise refrigerant rant management, assists maintain system efficiency, and allows convenient servicing access when required.
