fluid mechanics lab

Reciprocating Pump Test Rig

PRINCIPLE: Reciprocating pump operates on the principle of pushing of liquid by a piston that executes a reciprocating motion in a closed fitting cylinder.

Components of reciprocating pumps:-

a) Piston or plunger: - a piston or plunger that reciprocates in a closely fitted cylinder.

b) Crank and Connecting rod: - crank and connecting rod mechanism operated by a power source. Power source gives rotary motion to crank. With the help of connecting rod we translate reciprocating motion to piston in the cylinder.

c) Suction pipe: - one end of suction pipe remains dip in the liquid and other end attached to the inlet of the cylinder.

d) Delivery pipe: - one end of delivery pipe attached with delivery part and other end at discharge point.

e) Suction and Delivery value: - suction and delivery values are provided at the suction end and delivery end respectively. These values are non-return values.

Pump : Double acting reciprocating pump of size 25 x 20mm with air vessel to discharge about 20LPM at 20 meters total head.

Motor : 1Hp, 1400RPM, Single phase, 200/220V, AC supply.

Speed Variation : Stepped pulley reduction "V" belt drive to run the pump at 3 different speeds.

Electrical Panel : Switch and Energy meter for the measurement of power input.

Sump Tank : M.S. Powder Coating/M.S. FRP Lining/S.S Unit of suitable size to store sufficient water for independent circulation through the unit.

Measuring Tank : M.S. Powder Coating/M.S.FRP Lining/S.S Unit suitable size capacity provided with standard fittings for measuring discharge of water.

Others : Piping system consisting of Pipes, Pressure relief valve, Gate valve and fitting with Pressure gauge.