UNIPOLAR

Stepper-motor operation: Uni-polar (5-wire) stepper motors deliver precise, stable superheat control—smooth modulation across 10–100% range.
Wide refrigerant compatibility: Supports HFCs, HFOs, subcritical CO₂.
Robust construction: Ceramic valve seats ensure low wear, corrosion resistance, and hermetic sealing; valves endure 100K full cycles.
Bi-directional flow: Suitable for both cooling and heat pump reversals.
IP67 or high ingress protection: Reliable performance in harsh or damp environments.

Stepper-motor modulation ensures stable superheat and prevents oscillation under varying loads.
Fully linear flow response (10–100%) enables efficient part-load operation.
Hermetic bodies, ceramic internals, and high cycle life
IP67 rating and corrosion-resistant materials ensure performance in challenging environments.
Bi‑flow function makes them ideal for reversible heat‑pump systems.
Solenoid shut-off (EX3) and positive shut-off design eliminate the need for external valves and supress liquid hammering.
Precise modulation significantly improves energy performance, especially under partial load and low-pressure conditions.
Eliminates refrigeration cycle stress and reduces pressure fluctuations.
Motors directly drive valve—no gears, simplifying maintenance and enhancing reliability.
Valve and EXD controllers support plug-and-play setups with minimal field calibration.