FAQ

|Fittings

Can non-air fluids be used with KK□ series S couplers?

Air and water can be used with KK, KKH, and KKA series S couplers, but only air can be used with those from the KK130 series.
The use of other fluids cannot be guaranteed. Refer to the figure below for the operating temperatures.
Note 1) Since the main material of KK130 series S couplers is metal, water cannot be used.
Note 2) Do not use KK□ series S couplers with flammable or toxic substances or with steam.
Note 3) If the surge pressure is higher than the max. operating pressure, it may cause damage to the fitting or tube.