PISTON SEAL DU3

STANDARD SEAL DIMENSIONS

DESCRIPTION

The DU3 type mono-block piston type DU3 is made of NBR nitrile rubber hardness 75 Shore A vulcanized on a metal insert. It is normally used in pneumatic applications, in single and double effect cylinders. The profile with rounded edges improves the sliding and avoids Stick-Slip. The groove leads lubricant through the two sealing lips, ensuring the axial movements linearity for long time. The sliding direction spacers, self-align piston and sleeve in case of heavy radial loads. The piston presents, on both sides of the internal part, some grooves helping breakaway during the first reverse gear.

TECHNICAL DATA

Pressure: < 20 bar
Speed: < 1 m/s
Temperature: from – 30° C up to + 100° C
Fluids: air (lubricated or not), grase, etc.

MATERIAL

The material used is a combination of nitrile rubber NBR 75 Shore A and steel insert.For high temperature application we could also provide FKM compound instead of NBR compound.

ASSEMBLING

Remove sharp edges at the Bore-Cylinder entry to avoid seal damages. Grease the piston before installation.