Diaphragm Pump

Diaphragm Pump

Diaphragm Pumps are essential displacement machinery that utilizes contracting and expanding displacement chambers to carry abrasive fluids. These pumps are used in virtually all kinds of industries because all kinds of fluids, especially abrasive fluids like concrete, acids, and chemicals are moved through these pumps. These pumps are an integral part of the automobile and aircraft industries. There are different kinds of diaphragm pumps and superb quality products available, such as solvent hand diaphragm pumps, air-operated double diaphragm pumps, multi-head diaphragm pumps and many more. If you look at a simple diaphragm pump, it has a simple structure, consisting of a reciprocating or flexing diaphragm, two displacement chambers, two valves and a motor mechanism that drives the fluids. For more complicated applications, diaphragm pumps with multiple chambers and multiple diaphragms are used. 

Operation of Diaphragm Pumps

The pumps are made of an elastomeric or flexible material. The operation is simple where the diaphragms push abrasive fluids out of the displacement chambers. The pumping is done via a drive mechanism, which can air pressure, hydraulic pressure, reciprocating piston or solenoid. Alternate flexing and releasing of diaphragms cause an increase and decrease of pressure in the chamber. It helps to move the fluid in and out of the chamber.

These pumps are more reliable than alternative pumps because there are fewer moving parts, no sealing is required from the media and no parts in sliding contact. Since sealing or lubricating oil is not required, there is no chance of contamination of media. The pumps are easy to clean and have minimum maintenance downtime.

Uses of Diaphragm Pumps

Most diaphragm pumps have excellent suction lifts. They can operate at low to medium viscosity fluids. Some pumps such as air-operated double diaphragm pumps can also be utilized for corrosive and flammable liquids. The design is simple and relatively low-priced. These have also less operating and maintenance costs. The stainless-steel version of pumps is widely used in the food industry for sanitary applications including dispensing, metering fluids, water removal etc. 

The pumps are well-adjusted to applications that have potential hazards in nature. The operation of pumps does not produce spark so these are used in hazardous environments where flammable liquids are being used. The pump diaphragms are quite compatible with various chemicals and temperatures. The design of the pump is such that it doesn’t make any sliding contact. This is the reason no sealant is required for the pumps.

Diaphragm Pumps are available in different designs and technical specifications at Tradeindia, India’s leading B2B marketplace. Interested buyers may check the details of available products and send us their inquiries. The pumps offered by our registered companies are exemplary in performance, total work output, low power consumption and minimum maintenance requirements. Bulk buyers can avail of the pumps at very competitive prices.

FAQs:

Why should one choose diaphragm pumps over other types? 

There are many advantages of the pumps. First, these pumps have the capacity of infinite variables within the pump range. Second, there is no rotary seal, so they can run dry without any damage. Third, these are simple in design, easy to install and require very low maintenance. Fourth, these pumps are used for pumping abrasive fluid, flammable fluid and even run dry.

What are the main applications and industries these pumps are used?

Almost all kinds of industries like packaging industry (glue dispensing, ink dispensing), paint manufacturing (drum transfer, tank level control, solvent handling etc.), sewage industry (sludge handling), automotive industry, construction industry, aircraft industry, chemical industry and many others.

What are the basic criteria for buying these pumps?

• Type and composition of fluids
• The range of fluid viscosity
• Flow rate
• Pressure conditions required for the application

What are the primary factors for pump maintenance?

 Air quality, elastic components, inlets/outlets and torque setting.

Can I submerge the pump?

Yes, it can be submerged in the liquid if the fluid is compatible with the fasteners and other parts.