3700(Expansion separator) Constant pressurization unit is a basic object of a development of a constant pressurization unit for overcoming the problems encountered in an existing close type and open type expansion tank and for decreasing an equipment installation space of a machine chamber by adding an air separator function. Basically, the

INJ-3002(Dual) Maximum 3 (Three) Pumps Control Configuration ( 2 VFD + 1 DOL Pumps ) Various control functions: Constant Pressure Control, Heating Circulation Control, Differential Pressure Control and Temperature Control. This system using 2 (Two) VFDs is expecting higher energy saving effect than our model INJ-3000. Water hammering

INJ-5000 Maximum 2 (Two) Pumps Control Configuration ( 2 VFDs: Delta Model M/EL only) Various control functions: Constant Pressure Control, Heating Circulation Control, Differential Pressure Control and Temperature Control. This individual Inverter control system is expecting the most ideal energy saving effect and extend much longer life

INJ-1002(Dual) Maximum 5 (Five) Pumps Control Configuration ( 2 VFDs + 3 DOL Pumps ) This system using 2 (Two) VFDs is expecting higher energy saving effect than our model INJ-1000. Water hammering impact can be prevented by the variable speed operation of two pumps with accurate PID control function. As two variable speed pumps are

INJ-1000(Single) Maximum 5 (Five) Pumps Control Configuration ( 1 VFD + 4 DOL Pumps ) This system is expecting at least 30% energy saving effect than the Direct On Line pump control system. Water hammering impact can be prevented by the variable speed operation of the lead pump with accurate PID control function. Each pump can be

INJ-3000(Pressure, Booster) Maximum 3 (Three) Pumps Control Configuration ( 1 VFD + 2 DOL or 3 DOL Pumps ) Constant discharge pressure control This system is expecting at least 30% energy saving effect than the Direct On Line pump control system. Water hammering impact can be prevented by the variable speed operation of the lead pump

INJ-1012 OPERATION Small and large capacity pump are variable speed control together by each VFD or DOL. When water demand (system pressure dropped to the below of the set pressure) is increasing, small and large capacity VFD pumps will be operating together in combination. INJ-1010 system is operating using single small and large VFD

INJ-1004 Four (4) pumps are variable speed control by each VFD and the last one is DOL operation. When water demand (system pressure dropped to the below of the set pressure) is increasing above than full speed (400%) of four (4) pumps capacity, the last pump will be automatically run by DOL. Four(4) VFD pumps will be operating in variable

INJ-1010 OPERATION Small and large capacity pump are variable speed control together by each VFD or DOL. When water demand (system pressure dropped to the below of the set pressure) is increasing, small and large capacity VFD pumps will be operating together in combination. INJ-1010 system is operating using single small and large VFD