Booster pump sets – Grundfos Hydro MPC Description: The pressure boosting system is supplied as a combined kit in accordance with DIN 1988/T5. All pumps are speed controlled. The Hydro MPC-E maintains constant pressure by constantly adjusting the pumps’ speed. The performance of the system is adapted to demand by cutting off the required number of pumps and by parallel control of the operating pumps. The pump is changed automatically and depends on load, time and error. Specifications: The system consists of these parts: Pump parts in contact with the pumped liquid are made of stainless steel EN DIN 1.4301 Pump bases and heads are made of either cast iron/stainless steel (CRI) or cast iron EN-GJS-500-7 (CR), depending on the type of pump; Other vital parts are made of EN DIN 1.4301 stainless steel. Pumps are equipped with an easy-to-service cartridge shaft seal Two stainless steel manifolds according to EN DIN 1.4571 Stainless steel base frame according to EN DIN 1.4301 up to CR 90 standards; Above the CR 90 the pumps are placed on an I-Beam frame One check valve (POM) and two isolation valves per pump Check valves certified according to DVGW standards, isolating valves according to DIN and DVGW standards Adapter with isolation valve for connecting diaphragm tank Pressure gauge and pressure transmitter MPC control in steel cabinet, IP54, including main switch, all required fuses, motor protection, switching equipment and microprocessor controlled CU 352. Dry-run protection and diaphragm tank are available according to the accessories list. Pump operation is controlled by Control MPC with the following functions: Intelligent multi-pump controller, CU 352. Constant pressure control through continuously variable adjustment of the speed of each pump individually. PID controller with adjustable PI parameters (Kp Ti). Constant pressure at set point, independent of inlet pressure. Soft pressure build-up (to prevent water hammer during startup). On/off at low flow. Automatic pump control for optimum efficiency. =========================================
