The experimental principleIn actual production, sometimes a single pump cannot meet the production requirements. The combination can be in series or in parallel. The discussion below is limited to the combined operation of multiple pumps of the same performance. The purpose of the experiment Improves the perceptual knowledge of the centrifugal pump and the series operating conditions and their characteristics. Draw the working curve of the single pump and the total characteristic curve of the two pumps in series. The basic idea is that no matter how many pumps are combined, it can be regarded as a pump, so it is necessary to find the characteristic curve of the combined pump. pump parallel operation When a single pump cannot meet the flow required for work, two pumps or two or more pumps can be used in parallel. Q parallel=QI+Q?. The two broken lines in the figure are the characteristic curves (Q-H)1 and (Q-H)1 of the two pumps, and the solid line is the total characteristic curve (Q-H) after parallel connection. The system characteristic curve after parallel connection is the characteristic curve of two pumps under the same head?Q-H?1 and (Q-H). The corresponding flow rates are added, and the corresponding combined flow rates Q after parallel are obtained, and finally (Q-H) is plotted and the curve is as shown. According to the above, at any point M on the (Q-H) curve, the corresponding flow rate QM is the sum of the corresponding flow rates QA and QB of the two pumps having the same head, ie QM=QA+QB.

Stainless structure.

Diagram in the front panel with similar distribution to the elements in the real unit.

Quick connections for adaptation to feed hydraulics source.

Screws, nuts, plates and all the metallic elements in stainless steel.

Technical Data:

Centrifugal pump: 0.37 KW, 30-80 l./min at 20.1-12.8m., single- phase, 220V/50Hz or 110V/60 Hz.

Absolute pressure manometer placed at the pump admission, range – 1 to 3bar.

2 Manometers (manometric pressure), one of them placed in the discharge and another one in the discharge accessory, range: 0 – 4 bar.

Two way valve: 2 positions: open or close.

Membrane valve for flow regulating.

Accessories:

Two flexible pipes with quick connections.

Anodized aluminum structure and panels in painted steel.

Discharge accessory.

Reinforced pipe with quick connections.

Easy and quick coupling system built-in.

Dimensions of the module: 500 x 400 x 400 mm. approx. Dimension of the discharge accessory: 500 x 400 x 250 mm. approx. Weight: 20 Kg.