... refrigerant, high efficiency 3D impeller design. CTXK series centrifugal water chillers substituted CFC centrifugal water chiller ... JB 4750, pressure vessel for refrigeration equipment.CTXK series centrifugal water chillers combine environmentally-friendly HFC-134a ... reliable operation, long service life, wide cooling capacity control, low noise level, smooth operation, good seal, small floor space, ...