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Principle of reciprocating pump

Reciprocating pump is a positive displacement pump. Main moving parts are pistons or plungers, therefore, reciprocating pumps are also called piston pumps or plunger pumps. When the piston moves from…

What is NPSH of pump

NPSH of pump is an initialism for Net Positive Suction Head. In any cross-section of a generic hydraulic circuit, the NPSH parameter shows the different between the actual pressure of…

Types of marine pumps on ship

There are main three types of marine pumps on ship, impeller pumps(kinetic pumps), positive displacement pumps and ejectors. 1. Impeller Pumps(Kinetic Pumps)Impellers will rotate at a very high speed in…

Why Side Scuttles are Round?

Why Side Scuttles are Round? Side Scuttles are provided on the ship’s side outer panel, superstructure and deck outdoor wall. It is a structural opening on the hull, it’s a circular…