PL

Seals are particular exposed to pressure, friction and temperature. Our aim is to design and make seals or sealing systems that perform optimal for all these parameters. Following from these parameters is wear, extrusion etc. Our materials are low friction and wear resistant. When applying the right surface parameters in combination with seal type and materials, we are able to supply a very wear and extrusion resistant sealing system for almost all applications.

Below you can find an overview of sealing and bearing materials. Please select the suitable material for your application. When you have any difficulties with selection of a material, contact your AST representative.

Sealing surfaces are very much known for influencing the wear, extrusion and the leakage rate for a sealing system. When applying our sealing systems, please follow our specifications.  You will find these specifications through the schedule below.

PL is a single working piston seal better known as “stepseal”. This seal is able to take the pressure from one side and let the pressure from the backside back into the system. This is known as back pumping effect. It is mainly used in hydraulic systems but when the right compound is chosen, it can also be used in pneumatics or work in other media. It can be used in tandem systems as a primary on a piston. A double working seal can be the back-up for this seal.

Max. Velocity is 15 m/s also depending on the material used and the medium it is working in. It can be used on metallic bore materials.

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