Diaphragm Pumps

Diaphragm Pumps

A diaphragm pump is a positive displacement pump that uses a sliding plunger to force fluid through a small opening. It is also known as a piston pump or a flat-pack pump. The main advantage of this type of pump is its ability to move large volumes of fluid with minimal moving parts. This makes it ideal for applications where reliability and durability are paramount. Another advantage of diaphragm pumps is their self-priming capabilities, which means they can start and stop on dry surfaces without damaging the pump or the surfaces they are being used on.

Types of diaphragm pumps

There are three diaphragm pumps: electric-driven diaphragm pumps (EODD), air-operated diaphragm pumps (AODD), and piston diaphragm pumps.

Electric-driven diaphragm pumps

Electric-driven diaphragm pumps use an electrically powered diaphragm to move fluid. The pumps can be used for various fluids, including water, oil, and chemicals. The EODD is ideal for applications where a low-flow, high-pressure pump is needed. The pump can also be used in Reverse Osmosis (RO) systems and for circulating water in aquariums and hydroponics.

Air-operated diaphragm pumps

Air-operated diaphragm pumps are positive displacement pumps that use a reciprocating motion to move fluids through a sealing chamber. The advantage of AODD is that it can move viscous, shear-sensitive, or non-lubricating fluids without damaging them. They are also capable of self-priming and can run dry without damage. Air-operated diaphragm pumps are typically used in industrial applications such as chemical transfer, wastewater treatment, and food processing.

Piston diaphragm pumps

A piston diaphragm pump uses a piston to drive the diaphragm. The diaphragm is connected to an inlet and outlet, and when the piston is actuated, the diaphragm moves, drawing fluid into the pump chamber. When the piston is released, the diaphragm returns to its original position, pushing the fluid out of the chamber. Piston diaphragm pumps are typically used for applications where a large amount of fluid needs to be moved accurately. They are often used in industrial and manufacturing settings, as well as in medical and scientific laboratories.

Benefits of using diaphragm pumps

Diaphragm pumps are essential equipment in various industries, from manufacturing to agriculture. They are versatile and can be used for various applications, including metering, peristaltic, and OEM. Diaphragm pumps can be used for very viscous fluids as they contain internal valving, which is actuated by the diaphragm itself. This type of pump can also be used with abrasive fluids as there are few moving parts. In addition, diaphragm pumps can self-prime and will run dry without damage. They are, therefore an excellent choice for applications where conventional pumps would fail. Some examples of industries that use diaphragm pumps include chemicals, food & beverage, water treatment, and mining.

Applications of diaphragm pumps

Diaphragm pumps are commonly used in the following industries:

• Waste management: The pumps are often used in waste management applications, such as sewage treatment and sludge handling.
• Petroleum: The positive displacement feature is well-suited for pumping viscous liquids, making them ideal for use in the petroleum industry.
• Food and beverage: Diaphragm pumps are useful in food and beverage processing, as they can handle clean and dirty fluids.
• Chemical: These pumps can handle aggressive chemicals without deterioration. As a result, most chemical industries use diaphragm pumps.

Diaphragm pumps are efficient equipment popular for their ability to handle viscous liquids and solids without clogging. A diaphragm pump may be the right choice if you're looking for an industrial pump that can handle the most challenging jobs.