Applications

OL Seal Materials Guide | Installation Guide |

Materials, properties and uses

Compound

Composition

Properties

Operating Range

Applications

Kefloy 11

Virgin PTFE

Colour: White

Very good chemical resistance
Very low friction
Limited wear resistance Good dielectric properties


Velocities up to 5 m/sec. Pressures: static up to 30 MPa Pressures: dynamic up to 20 MPa Temperatures: static -100 to +250°C Temperatures: dynamic -40 to +225°C

Light duty Chemical industry Food and drug (FDA)
BakRings

Kefloy 13

Modified PTFE Bronze

Colour:
Light green

Very good wear resistance
Very good extrusion resistance
Good compressive strength

Velocities up to 15 m/sec. Pressures: static up to 80 MPa Pressures: dynamic up to 60 MPa Temperatures: static -100 to +250°C
Temperatures: dynamic -40 to +225°C

Heavy duty. Standard compound for hydraulic
systems.
Not for direct contact with food and drug
SlipRings

Kefloy 18

Modified PTFE Bronze

Colour:
Light green

Very good wear resistance
High compressive strength
Medium coefficient of friction

Velocities up to 15 m/sec. Pressures: static up to 90 MPa Pressures: dynamic up to 70 MPa Temperatures: static -100 to +250°C
Temperatures: dynamic -40 to +225°C

Very heavy duty Hydraulic systems Not for direct contact with food and drug
SlipRings

Kefloy 22

Modified PTFE
Carbon
Graphite

Colour: Black

Good chemical resistance
Good dry run properties

Runs well against mild surfaces

Velocities up to 15 m/sec. Pressures: static up to 50 MPa Pressures: dynamic up to 40 MPa Temperatures: static -100 to +250°C
Temperatures: dynamic -40 to +225°C

Heavy duty Unlubricated systems Water hydraulic Pneumatic systems SlipRings
WypeRings GuideStrips

Kefloy 25

Modified PTFE Carbon

Colour: Black

Good chemical resistance
Good dry run properties
Runs well against mild surfaces
Softer and more flexible than Kefloy 22

Velocities up to 15 m/sec. Pressures: static up to 30 MPa Pressures: dynamic up to 20 MPa Temperatures: static -100 to +250°C
Temperatures: dynamic -40 to +225°C

Medium duty Unlubricated systems Water hydraulic Pneumatic systems O-Caps

Kefloy 28

Modified PTFE Carbon fibre Graphite

Colour: Dark Grey

Very good wear resistance
Very good extrusion resistance
Medium coefficient of friction

Velocities up to 15 m/sec. Pressures: static up to 90 MPa Pressures: dynamic up to 70 MPa Temperatures: static -100 to +250°C Temperatures: dynamic -40 to +225°C

Very heavy duty oil and water hydraulic systems
Not for direct contact with food and drug
SlipRings
TurnRings
GuideStrips

Kefloy 32

Modified PTFE

Colour: Turquoise

Very good chemical resistance
Very low friction
No stick-slip

Velocities up to 15 m/sec. Pressures: static up to 30 MPa Pressures: dynamic up to 20 MPa Temperatures: static -100 to +250°C
Temperatures: dynamic -40 to +225°C

Medium duty
Hydraulic systems
SlipRings
O-Caps
WypeRings

Kefloy 40

Modified PTFE Ekonol

Colour: Beige

Very good wear resistance
Very good extrusion resistance
Very low coefficient of friction
Very gentle to mating surface

Velocities up to 15 m/sec. Pressures: static up to 40 MPa Pressures: dynamic up to 30 MPa Temperatures: static -100 to +250°C
Temperatures: dynamic -40 to +225°C

Heavy duty oil and water hydraulic
SlipRings
Sharp Seals
O-Caps
WypeRings

GuideStrips

Kefloy 60

Modified PTFE Glass fibre

Colour: Light blue

Very good extrusion resistance
High compressive strength

Velocities up to 15 m/sec. Pressures: static up to 60 MPa Pressures: dynamic up to 50 MPa Temperatures: static -100 to +250°C
Temperatures: dynamic -40 to +225°C

Heavy duty BakRings

Kefloy 66

Modified PTFE
Glass fibre MoS2

Colour: Grey

Good chemical resistance
Good wear resistance

Velocities up to 15 m/sec. Pressures: static up to 40 MPa Pressures: dynamic up to 30 MPa Temperatures: static -100 to +250°C Temperatures: dynamic -40 to +225°C

Medium duty
Hydraulic systems
Pneumatic systems
SlipRings
WypeRings
GuideStrips

Ultralen 90

Ultra high molecular weight polyethylene

Colour: White

Very good abrasion resistance
Good chemical resistance
Very good properties at low temperatures
Sensitive to higher temperatures

Velocities up to 5 m/sec. Pressures: static up to 60 MPa Pressures: dynamic up to 50 MPa Temperatures: static -150 to +90°C Temperatures: dynamic -150 to +80°C

Heavy duty
Dry pneumatic systems
Lubricated pneumatic systems
Water hydraulic
Chemical industries
Food and drug (FDA)

 

 

 


















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