POSITIVE DISPLACEMENT: MECHANICAL

Mechanical diaphragm pumps are established as one of the most popular positive displacement pump types. The pump’s popularity is attributable to its simple design. The diaphragm and the valves are the only parts that come in contact with the fluid, hence servicing is easier compared to other types with complex structure. Furthermore, diaphragm pumps have good self-priming capability, making them suitable for fluid transfer applications where high suction lift is required.

They also provide controllable flow rates, which is the main reason why they are one of the most broadly adopted positive displacement pump types across a broad spectrum of industries. They are especially in demand in sectors that require accurate metering like in chemical manufacturing and processing facilities.

Diaphragm pumps, in general, give good chemical compatibility over centrifugal, piston pumps or lobe pumps.

Operating Principles

Reciprocating Diaphragm and Valves

The basic design of a mechanical diaphragm pump is that one side of a chamber is made up of a diaphragm, which is blocked at the inlet and discharge ports via ball valves. The diaphragm is a round disc composed of a flexible material which is pushed forwards and backwards in a chamber via a mechanical shaft. As the diaphragm is pulled inwards on the suction stroke, the volume of the chamber expands and the ball valve at the inlet opens, introducing fluid into the chamber. On the discharge stroke, the ball valve at the discharge port opens as the inlet valve shuts.

Features & Benefits

Mechanical Diaphragm Pumps: Engineered for durability, efficiency, and versatility in handling solids and abrasive fluids.

Heavy duty construction
Ability to run dry without damage
High suction lift
Self-priming
Ability to handle abrasive fluid
Ability to handle solids of up to 80% port size
Compact and mobile

Industrial Mechanical Diaphragm Pump Applications

Dewatering
Industrial Waste
Oil/Water Separator
Raw Sewage
Treatment
Plant

INDUSTRIAL MECHANICAL DIAPHRAGM BRANDS WE SELL, STOCK & SERVICE

All-Pumps has an extensive range of Mechanical Diaphragm Pumps from the world’s most trusted manufacturers. Spare parts are also available for emergency cases. We also have trained and experienced staff who can be dispatched to the field to carry out quick and effective Mechanical Diaphragm pump servicing.

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