BasicLINE: Diaphragm pump: MP 520

Diaphragm pump MP 520 – air-operated double diaphragm pump for paints and coating materials

The Krautzberger MP 520 is a pneumatically operated double diaphragm pump for industrial painting and coating. It is suitable for conveying liquid and low-viscosity coating materials from pressureless storage containers and reliably supplies spray guns, automatic spray guns and dosing devices with material.

The flow rate can be continuously regulated via the compressed air supply. As soon as the set material pressure is reached, the diaphragm pump switches off automatically. If material is removed at the sampling point, the MP 520 will start up independently and keep the adjusted material pressure constant.

Constant material supply for industrial coating processes

In painting and coating processes, an even material supply is crucial for stable results. The MP 520 has been developed for applications where varnishes, water paints, oils, glazes or similar low-viscosity media need to be processed reliably.

Due to its compact design, simple pneumatic operation and robust design, the double diaphragm pump is suitable for manual painting workstations as well as automated spraying processes. In combination with suitable accessories, it can be flexibly integrated into existing material supply systems.

Typical areas of application

The MP 520 diaphragm pump is mainly used where coating materials from pressureless containers have to be transported and evenly handed over to spray guns or dosing devices. Typical applications are painting workstations, automatic spray systems, coating systems, technical test center applications as well as material supplies in small and medium series.

Especially in conjunction with Krautzberger spray guns, the MP 520 offers a reliable solution for the conveying and provision of coating materials. Depending on the application, the pump can be supplemented with accessories such as pressure compensation tank, material filter, material pressure regulator, suction device or wall console.

Basic technical data

• Flow rate: 15 l/min, based on water at free discharge
• Material printing: approx. 0,5 until 8 bar, material-dependent
• Maximum permitted operating pressure: 8 bar
• Pressure ratio: 1:1
• Material connection Output: G 3/4 male thread
• Compressed air connection: G 1/4 external thread
• Weight: approx. 9 kg
• Air consumption at 8 bar: approx. 160 l/min
• Maximum temperature of the coating material: 0 to +50 °C

For varnishes, water paints, oils and glazes

The MP 520 is designed for the conveyance of liquid and low-viscosity coatings. These include varnishes, water paints, oils and glazes. The actual suitability always depends on the medium used, its viscosity, temperature, chemical composition and the respective process conditions.

For an optimal design, Krautzberger recommends the individual examination of the application. Thus, the diaphragm pump can be selected to match the material supply, the spray gun used and the desired coating result.