4-way reversing valves are Saginomiya core products whit over 30 years of experience in the field. It inverts the flow direction of refrigerant by turning on/off an electromagnetic coil on a small solenoid pilot valve which pilots the movement of the slider in the main valve body.
4-way valves are mainly used in:
- Heating/cooling change over in air conditioners,
- Heating/cooling or hot gas defrosting mode changes in heat pump units (Air to water, liquid to water, etc.).
4-way valves can be used in from small residential air conditioner to large chiller units.
Refrigeration capacity is from 6 to 370 kW (R410a).
Saginomiya STF and VHV are used throughout the world and are highly trusted by customers.