B3

B3 Rod Seal

Descriptions

The profile B3 Ultrathan® rod seal is a lipseal which fits in the groove. These seals
may be used for all applications where the physical properties of normal or fabric
reinforced elastomers are insufficient.

 

Features

• Robust seal profile for harshest operating conditions.
• Extreme wear resistance.
• Easier installation.
• Insensitive to pressure peaks.
• High extrusion resistance.
• Excellent media resistance in case of
suitable compound selection.
• Suitable compounds available for
special requirements of the chemical
process industry.
• Suitable compounds available for special requirements of the food processing
industry.
• Dimensions according to ISO 5597.
• Installation in closed and undercut
housings.
• Low compression set.
• Additional sizes of machined products
available on short notice.

Range of application
Mainly for the sealing of piston rods and plungers in heavy duty applications in mobile and stationary hydraulics. The dimensions mainly conform to the requirements of
ISO 5597 and ISO 3320 for housing and diameters respectively.

Operating pressure ≤ 400 bar
Operating temperature -35 °C to +110 °C
Sliding speed ≤ 0.5 m/s
Media Hydraulic oils based on mineral oil

Compounds
The Ultrathan® P5008 compound is a Parker material based on polyurethane with a
hardness of approx. 93 Shore A. Its main advantages in comparison with other polyurethane materials currently available on the market are the increased heat resistance
and the lower compression set.
For media containing water, we recommend our hydrolysis resistent polyurethane
compound P5001.
Installation
The seals should have an axial clearance (see columns H and L). To avoid damage at
the sealing lips, the seals should not be pulled over sharp edges during installation.
Normally these seals may be snapped into closed grooves. Where access is restricted
special assembly tools may be required. Proposals for the design of such tools will be
provided on request. For gap sizes see chapter “Maximum Gap Allowance”

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