C2

C2 Piston Seal

Descriptions

The profile C2 piston seal meets the requirements of the manufacturers of hydraulic
and pneumatic equipment for seals with the smallest possible housings. Although
cross-sections and heights are very small the sealing performance is excellent.
Extremely low friction is experienced because of the short contact to the sealing surface area. Because of the special design, back-up rings or brackets are not required.
Use in pneumatic equipment is only possible when consistent supply of lubricant
such as oiled air is assured. For installation in non-lubricated pneumatic systems (dry
air) we recommend our profile E4 which fits into the same housings.

Features

• Good wear resistance.
• Easier installation.
• Suitable for fully automatic installation.
• Assembly on one-part piston is possible.
• High temperature resistance in case of
suitable compound selection.
• 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.
• Installation in closed and undercut
housings.

Range of application
Especially recommended for pistons in hydraulic and pneumatic cylinders.

Operating pressure 1)

Hydraulics≤ 160 bar
Pneumatics≤ 16 bar

Operating temperature

Hydraulics-25 °C to +100 °C
Pneumatics-25 °C to +80 °C
Sliding speed≤ 0.5 m/s

1) Dependent upon cross-section and compound.
Compounds
Standard: N3584, NBR compound (≈ 85 Shore A).
For low temperatures: N8613, NBR compound (≈ 80 Shore A).
For high temperatures: V3664, FKM compound (≈ 85 Shore A).
Installation
The profile C2 piston seals are manufactured undersized in relation to the nominal dimensions. Only after installation will the sealing lip diameter have the desired dimensions. This lip seal may easily be snapped into the grooves. Care should be taken that
the seals are not pulled over sharp edges.
In the case of double-acting pistons, pressure peaks should be avoided. In such
cases, sealing elements with larger cross-sections or other profiles with header rings
should be used.

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