Series and Parallel Pumps Test Bench With Suction And Loading Mode

Series and Parallel Pumps Test Bench With Suction And Loading Mode

Teaching objectives

• - Measurement of the total manometric height according to the flow
• - Measurement of the electric power absorbed according to the flow and the speed of the pump
• - Determination of the hydraulic efficiency
• - Drawing of the characteristic curves
• -Study of the two pumps mounted in series and in parallel

Specifications techniques

The bench is mounted on a stainless steel frame with aluminium nuts, equipped of 4 castors, of which 2 are equipped with brakes, 2 feeding tanks 2 industrial single stage centrifugal pumps made of stainless steel 304 (identical rotors, but different powers) A single-piece pump, with motor mounted in balance with the pump allowing to make a torque measurement with the help of a strain gauge sensor. An electronic tachometer allows to measure the speed of the pump.

The pumps are controlled by two electronic speed drivers

1. Wattmeter
2. Rotameters
3. Vacuum pressure gages
4. Pressure gauges

Transparent PVC Tubing at the pumps suction

• A set of valves for the functioning of the 2 pumps is in series, or in parallel mode.
• An electrical cabinet in painted steel, including :
• The two speed drivers
• The wattmeter
• The control and safety devices of the pumps
• The tachometer transmitter
• The “ON” light
• The emergency stop button
• The padlocked main switch

Essential requirements

• Power supply: 380 V three-phase. 3P + T + N – power 2,5 kW
• Water for the tank filling

Dimensions

• 1900 x 790 x 2000 mm