Seals

Pusher seals incorporate secondary seals, called the dynamic gasket, that are pushed by springs axially along the shaft or sleeve to compensate for seal face wear or wobble due to misalignment.

The bellows design overcomes many of the problems associated with pusher designs. The absence of a dynamic gasket eliminates the possibility of "hand-up", caused by build-up of deposits or gasket swell.

• Seals

• Slurry

Gas seal technology and gas seal operation depends on aerostatic and aerodynamic forces. Careful design keeps the two faces separated by a gas film. Aerodynamic forces are created by the presence of a 'pattern' on one of the faces.

In chemical, pharmaceutical, food and oil refinery process plants diverse systems are employed for agitating, blending and mixing products. The units require low maintenance operation and safety, both to protect the environment and the workplace.

Centrifugal compressors and other turbomachinery are critical to the operation of a process plant. Selecting a manufacturer with well proven state-of-the-art low friction dry gas seals who can offer full field maintenance support is very important.

Original Equipment Manufacturers (OEM's) are very important for Flowserve FSD. Therefore Flowserve is committed to develop and supply designs for special equipment and for special duty requirements.

Outside mounted seals are used in strongly corrosive applications. This arrangement allows seal designs that have no metal parts in contact with the process liquid.

Standard cartridge seals such as the ISC seals are designed for general purpose applications on ANSI and DIN process pumps serving chemical processing, pulp and paper, oil and refining, food and beverage, water and wastewater, and other industries.

For optimum performance of mechanical seals, control over the sealing environment is very important. If the seal is kept clean and well lubricated by the product or barrier it will deliver years of reliable service.