4-way zawór zwrotny STF 0301g3 De Dietrich 300007506

This 4-way reversing valve model STF 0301G3 is a critical component for heat pump and air conditioning systems. It controls the direction of refrigerant flow, allowing the system to switch between heating and cooling modes. Designed for reliability in heating equipment, this valve ensures efficient operation in reversible systems. When servicing or repairing a heat pump, replacing a faulty reversing valve can restore proper function and system efficiency.