DLseals пневматические уплотнения штока поршневые и скребки лабиринтные уплотнительные комплекты

Compressed air is used to seal the clearance of the rotating shaft, and the sealing device without leakage of working medium is called pneumatic seal. The annular groove is machined on the shell, and the clearance of the rotating shaft is sealed after the compressed air enters, so as to prevent the leakage of lubricating oil.

Pneumatic seal has the characteristics of simple structure, but requires a certain pressure of gas supply, so the consumption of compressed air is larger, and the pressure of gas source is 0.03-0.05 Mpa higher than that of sealing medium. Pneumatic seals are not limited by speed and temperature. They are usually used for sealing of rotating machinery and equipment with little pressure difference. They are also used for sealing of liquid medium and gas medium, such as preventing the leakage of lubricating oil in bearing chamber. Sometimes it can be combined with labyrinth seal or screw seal.

A comprehensive portfolio of sealing systems for pneumatic cylinders is available to the application engineer: rod seals and wipers, single- and double-acting piston seals, complete pistons with or without mechanical dampers, cushioning rings as well as combined seal/wiper rings for ISO and short-stroke cylinders.

For special application requirements, recommend seal/wiper elements for non-rotating cylinders, oval double-acting piston seals.

Valve sealing systems – particularly spool valves – designed the seal best suiting the customer’s specific valve system and associated requirements.
Special compounds are available for pneumatic sealing solutions,
combining the benefits of low friction, minimum wear, and long service life. The variety of our compound range offers the right choice of material for any application and engineering requirement.

The pneumatic rod seal/wiper profile PDR is a tried and proven combined element for rods in small pneumatic cylinders and valve shafts.

The profile E4 piston seal is a lip seal specially developed for use in pneumatics dimensions of the profile E4 standard series correspond to the cylinder diam according to ISO 3320, CETOP RP 52 P, RP 43 P and RP 53 P.

The profile Z8 cylinder seal is a single-acting lip seal for pistons in pneumatic cylinders and valves. It requires small housing dimensions.

The double-acting piston sealing set profile GSF consists of a PTFE piston sand an elastomer O-ring as a preloading element.
Profile GSF is particularly suitable for double-acting pneumatic pistons, e.gcylinders, servo-assisted equipment and in quick-acting cylinders

The single-acting profile DK/DB is a complete pneumatic piston with a cup seal and a
vulcanized metal disc support. It performs two functions:Sealing and guiding

The profile PP pneumatic cushioning seal is specially designed for cushioning pistons in pneumatic cylinders

Pneumatic seals EU type produced by injection molding technique with special PU material, our EU PU combi seals perform an absolute sealing with its dynamic nutring sealing lips and its joint dust (wiper) lips.

O-rings are made from an in-house developed polyurethane compound with a very low compression set.
This low compression set made it possible to produce polyurethane O-rings. An O-ring made of polyurethane material is more resistant to extrusion than standard O-rings, so that it may be favorably used in all applications with very high pulsating pressures, or with restricted housing space not allowing the use of back-up rings.

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