Diaphragm pump: application and characteristics

Diaphragm pumps are designed for pumping both pure liquids having a low viscosity, and abrasive solutions having an average consistency. Devices are able to move large particles without damaging the equipment. Pneumatic devices due to the appropriate engine design can be used even in potentially explosive environments.

The diaphragm pump is able to work with different volumes of liquid. It can pump from one to a thousand liters of liquid per minute. The pressure can be adjusted and reaches 8 bar. There are models that have the ability to self-pumping.

They allow you to raise water to a height of 8 meters, working dry, without the risk of damage. When the outlet pipe is closed, the diaphragm pump stops its operation and starts again when it is opened. This design and operating principle allow to avoid the installation of a by-pass or safety valve.

Pumps are made of various construction materials. Thus, metal devices are made of cast iron, aluminum, stainless steel and Hastelloy-alloy. Non-metallic devices are made of polypropylene and acetal. In all devices, corrugated diaphragms are used, which allows to increase the service life and reduce the cost of technical periodic maintenance.

The greatest demand is for ARO diaphragm pumps. The range of products of this manufacturer is very diverse. For general industrial use, compact devices with sizes from 1/4 to 3/4 of an inch are suitable. These devices have high performance and small dimensions. Such a diaphragm pump can pump 56 liters of fluid per minute.

Among the professionals in the chemical field, 1-3 inch machines with a capacity of 1040 liters per minute are popular. Devices have excellent operational characteristics and reasonable cost.

The diaphragm vacuum pump is characterized by efficiency, availability of options, reliability, environmental friendliness. The maximum productivity is achieved thanks to the design of the device, which allows a large flow of liquid with minimal pulsation and air consumption.

The presence of a manifold with multiple locations and the number of inputs and outputs in combination with a variety of options allows the use of devices in various fields. Reliable, reliable operation during the entire service life is ensured by the presence of an oil-free primary or pilot differential valve. Bolted construction allows to achieve maximum chemical stability and prevent leakage.

Modular device, a reduced number of structural parts and ease of use of repair kits reduce the cost and repair time to a minimum. The presence of the main air valve makes it possible to prevent the device from stopping even at low pressure of the outside air.