The new series contains 6 different models with 3 different outlet connections types, with internal or external equalization:
a) 1/2” SAE flare connection
b) ODF connection – Metric 12mm
c) ODF connection – Imperial 1/2”
RFKH series also includes:
• RFKH08 series: models suitable for usage with R448A & R449A refrigerants
• RFKH11 series: models suitable for usage with R452A refrigerant
RFKH series valves can be used for both cooling and air conditioning applications and are available for the main refrigerants currently on the market: R407C, R134a, R404A, R507 (a different version for R22 is available for non-EU markets).
The new RFKH series of thermostatic expansion valves with interchangeable orifice developed and produced entirely by Sanhua is a natural evolution of Sanhua's existing range of RFKA thermostatic valves. RFKH series valves are configured as thermostatic valves with interchangeable orifices, a brass body, copper connections and a stainless steel head.
The use of stainless steel in the bulb and capillary tube brings greater strength to the valve and reduces the risk of capillary tube damage in the event of accidental impacts or unusual vibrations.