The AD double wiper seal featuring a Slipper Seal^® design consists of a PTFE slide ring for the wiper function and an elastomer O-ring as a preloading element. It combines two functions: wiping against external contamination and a sealing function that reduces the residual oil film. The AD wiper seal is characterized by low break-away and sliding friction and can therefore be used in low-lube conditions as well.

Due to the material combination of the slide ring (PTFE) and the O-ring (elastomer), this product is suitable for a wide range of applications, especially for aggressive media and/or high temperatures. Several compounds can alternatively be selected according to the specific application profile.

Wiper rings / seals serve to safeguard axially movable rods and pistons against ingress of dust, dirt, sand and swarf, thus protecting the guiding elements and seals and extending the service life of the sealing system.

• Excellent wear resistance.

• Minimal break-away and dynamic friction and no stick-slip tendency ensures uniform motion even at low speeds.

• Good energy efficiency due to low friction.

• High temperature resistance assured by suitable O-Ring compound selection.

• Adaptable to nearly all media thanks to high chemical resistance of the sealing ring and large O-Ring compound selection.

• Dimensions according to DIN ;ISO ;6195, Type D.

• Available in diameters from 4 to ;3000 mm.

• Installation in closed and undercut housings.

Range of application:

The AD product series is suitable for a wide range of applications, especially for aggressive media and/or high temperatures.

The AD wiper seal is available in the following compounds:

00591 - Industrial applications

00592 - High temperatures

00593 - Low temperatures

Wiper Seal Prädifa series AD, Polon®