On what principle does a reciprocating pump work?

🔑 Key Points
[Heading 2]:
→ A reciprocating pump is a positive displacement pump that operates by sucking and raising liquid through a piston or plunger moving in a reciprocating motion within a closely fitted cylinder.

🔧 Key Features
🔹 Positive Displacement:
→ The pump displaces the liquid by the movement of the piston or plunger, and the amount of liquid pumped is equal to the volume displaced by the piston.
🔹 Application:
→ Reciprocating pumps are best suited for applications requiring relatively small capacities and high heads.

🔄 Types of Reciprocating Pumps
🔸 Single-Acting Reciprocating Pump
→ Operation:
This type of pump has one suction valve and one discharge valve.
When the piston moves backward, it creates suction, drawing liquid into the cylinder.
When the piston moves forward, the suction valve closes, and the discharge valve opens, allowing the liquid to be expelled from the cylinder.

🔹 Double-Acting Reciprocating Pump
→ Operation:
In a double-acting pump, suction and delivery strokes occur simultaneously.
When the plunger moves forward, water is discharged from the cylinder through the discharge valve on one side, while the adjacent suction valve remains closed.
At the same time, the opposite side of the piston performs the suction stroke, drawing in liquid.