Pressure valves provide a constant counterpressure and prevent siphoning Opening pressure is fix at 3 bar

This enables continuously variable control of the motor speed

alternating operation of two pumps

DDA 12-10 AR-PP/V/C-F-31U2U2FG The SMART Digital DDA is a compact positive displacement

enables temperature monitoring

cr 1 13 a a a e hqqe 96556501 Pressure valves provide a constantVertical, multistage centrifugal pump with inlet and outlet ports on same the level (inline). The pump head and base are in cast iron all other wetted parts are in stainless steel. A cartridge shaft seal ensures high reliability, safe handling, and easy access and service. Power transmission is via a rigid split coupling. The pump is fitted with a 3 phase, fan cooled asynchronous motor.