Burgmann products are manufactured by the most advanced production methods. Excellently trained personnel, new value machinery equipment and a functioning quality assurance system (ISO 9001) form the basis of success.

Burgmann’s motto is: Leak proof for a clean environment" in almost every industrial area, from A to Z. Whether in the chemical industry, pharmaceutical industry, in power engineering, marine applications or crude oil extraction, paper industry, space and aircraft, in machinery and components such as pumps, agitators, ventilators, compressors, valves and fittings, flange connections, flue gas ducts or in exhaust gas systems of automobiles, Burgmann products rank with the most reliable products.

Extensive in-house research and test divisions are busy with advancing the sealing technology and improving the products. Numerous patents, innovations and an extensive know-how in all areas of sealing technology are proof of this.

Mechanical seals are used for the sealing of rotating shafts against a stationary housing, e.g. in pumps and agitators. The stationary" part of the seal is usually located at the housing, the rotating" part is fixed on the shaft. The high-precision face-machined sliding faces rotate axially in opposition. The sliding faces are pressed against each other by means of spring force, thus preventing the opening of the seal. The seal faces are statically sealed against the housing and the shaft by secondary seals (O-rings). With the entry of the pumped medium into the minimal sealing gap a lubricating film is generated and the sealing effect is thus obtained.

The design, arrangement and combination of materials of the seal is basically determined by pressure, temperature, speed of rotation and quality of the pumped medium.

Shaft diameters of 5...500 mm, pressures from 10 torr ....250 bar, temperatures from -200°C... +450°C and sliding velocities up to 150 m/s limit the operating range of mechanical seals.

Additional seal supply systems or buffer fluid systems may be required, dependent on the mode of operation, the quality of the medium and the seal arrangement.