Seals

Asymmetrical, single acting rod seal, designed with interference on the OD which provides a good static fit in the groove. Special design for small cross sections where lips would be too thin. Secondary lip for stabilising at large seal heights and reducing the residual oil film. Activated back-up ring prevents and reduces POM P101-WEextrusion. Excellent static and dynamic sealing performance. Excellent performance over all pressure ranges. Used for short pulsating strokes. No reverse leakage when changing direction. Recommended for positioning or holding under pressure. Particularly suitable for high viscosity media.

Asymmetrical, single acting rod seal, designed with low interference on the static sealing diameter. Preload effected through V-spring. Dynamic sealing lip shorter than static lip to avoid drag pressure. Excellent static and dynamic sealing performance. Useable for short and long stroke lengths. Low friction in dry running or poor lubrication conditions. Negligible tendency to “stick-slip” effect, small break away loads.

Asymmetrical, single acting rotary seal with clamping flange. Preload effected through V-spring. Dynamic sealing lip shorter than static lip to avoid drag pressure. Excellent static and dynamic sealing performance. Useable for short and long stroke lengths. Low friction in dry running or poor lubrication conditions, no stick-slip effect.

Asymmetrical, double acting compact rod seal, designed with interference on the OD which provides a good static fit in the groove. Excellent static and dynamic sealing performance. Excellent performance in high and low pressure conditions. Negligible tendency to “stick-slip” effect. High break-away load after long standstills. Activated back-up rings reduce extrusion and prevent twisting of the seal in the groove.

Asymmetrical, single acting rod seal, combined with pressure ring and support ring. By adjusting the number of packings friction and leakage characteristics can be influenced. Excellent dynamic and good static sealing performance. Excellent performance in high pressure conditions. Especially used for long stroke lengths. Low friction due to flexible lip design.

Asymmetrical, double acting compact rod seal, designed with interference on the OD which provides a good static fit in the groove. Excellent static and dynamic sealing performance. Excellent performance in low pressure conditions. For rotary applications the interference on the OD has to be increased (better static fit to reduce the danger of the seal rotating in the housing), the preload has to be reduced (lower friction).

Asymmetrical, single acting piston seal, designed with interference on the ID which provides a good static fit in the groove. Dynamic sealing lip shorter than static lip to avoid drag pressure. Excellent static and dynamic sealing performance. Useable for long stroke lengths. Negligible tendency to “stick-slip” effect above a speed of 0.15 m/s. For lower speeds the dynamic lip should be redesigned (shorter, stiffer).

Asymmetrical, single acting piston seal, designed with interference on the ID which provides a good static fit in the groove. Dynamic sealing lip shorter than static lip to avoid drag pressure. Wider groove and softer lips compared to PS01. Excellent static and dynamic sealing performance. Useable for long stroke lengths. Negligible tendency to “stick-slip” effect above a speed of 0.15 m/s.

Asymmetrical, single acting piston seal, designed with interference on the ID which provides a good static fit in the groove. Dynamic sealing lip shorter than static lip to avoid drag pressure. Sharp lips on ID and OD. Good static and dynamic sealing performance. Good performance in low pressure conditions. Useable for long stroke lengths. Out-of date profile Poor sealing that causes a relatively thick oil film.

Asymmetrical, single acting piston seal with integrated back-up ring, designed with interference on the ID which provides a good static fit in the groove. Dynamic sealing lip shorter than static lip to avoid drag pressure. Excellent static and dynamic sealing performance. Useable for long stroke lengths. Negligible tendency to “stick-slip” effect above a speed of 0.15 m/s. For lower speeds the dynamic lip should be redesigned (shorter, stiffer). Activated back-up ring prevents and reduces extrusion.

Asymmetrical, single acting piston seal with integrated back-up ring, designed with interference on the ID which provides a good static fit in the groove. Dynamic sealing lip shorter than static lip to avoid drag pressure. Excellent static and dynamic sealing performance. Useable for long stroke lengths. Negligible tendency to “stick-slip” effect above a speed of 0.15 m/s. For lower speeds the dynamic lip should be redesigned (shorter, stiffer). Activated back-up ring prevents and reduces extrusion.

Asymmetrical, single acting piston seal, designed with interference on the ID which provides a good static fit in the groove. Dynamic sealing lip shorter than static lip to avoid drag pressure. Increased preload due to an additional O-Ring. Excellent static and dynamic sealing performance. Excellent performance in all pressure ranges. Used for short, pulsating strokes. No reverse leakage when changing direction. Recommended for positioning or holding under pressure.

Asymmetrical, single acting piston seal, designed with interference on the ID which provides a good static fit in the groove. Dynamic sealing lip shorter than static lip to avoid drag pressure. Increased preload due to an additional O-Ring. Activated back-up ring prevents and reduces extrusion. Excellent static and dynamic sealing performance. Excellent performance in all pressure ranges. Used for short, pulsating strokes. No reverse leakage when changing direction. Recommended for positioning or holding under pressure.

Asymmetrical, single acting piston seal for pneumatic applications, designed with interference on the ID which provides a good static fit in the groove. Special designed sealing lip to retain the lubrication film and prevent dry running. Excellent static and dynamic sealing performance. Useable for long stroke lengths. Negligible tendency to “stick-slip”, small break-away loads after long standstill.

Symmetrical, double acting piston seal, designed with interference of the O-Ring on the ID and slight interference of the PTFE glide ring on the OD. Excellent sealing performance in low and high speeds. Suitable for positioning functions. Negligible tendency to “stick-slip” effect, good sliding properties. Low break-away load after long standstills. Excellent gap extrusion resistance.

Symmetrical, double acting piston seal, designed with interference of the O-Ring on the ID and slight interference of the glide ring on the OD. Two external sealing edges working as a primary seal and reducing the risk of the blow-by effect. Central back-up and sealing bulge. Glide ring is made from very wear resistant hard grade polyurethane. Suitable for positioning and holding functions. Negligible tendency to “stick-slip” effect. Low break-away load after long standstills. Good extrusion resistance.

Asymmetrical, single acting piston seal, designed with interference of the O-Ring on the ID and slight interference of the glide ring on the OD. Excellent sealing performance in low and high speeds. Suitable for positioning functions. Negligible tendency to “stick-slip” effect, good sliding properties. Low break-away load after long standstills. Excellent extrusion resistance due to the free space on the trailing side.

Symmetrical, double acting piston seal, designed with interference of the O-Ring on the ID and slight interference of the glide ring on the OD. Quad ring® on the outside diameter ensures additional sealing especially at holding and positioning functions. Good sealing function at medium separation. Negligible tendency to “stick-slip” effect, good sliding properties. Low break-away load after long standstills. Excellent extrusion resistance.

Symmetrical, double acting piston seal, designed with interference of the O-Rings on the ID and slight interference of the glide ring on the OD. Quad ring® on the outside diameter ensures additional sealing especially at holding and positioning functions. The use of two O-Rings ensures better pressure distribution on the sealing edges. Good sealing function at medium separation. Negligible tendency to “stick-slip” effect, good sliding properties. Low break- away load after long standstills. Excellent extrusion resistance.

Symmetrical, double acting piston seal, designed with interference of the O-Ring on the ID and slight interference of the glide ring on the OD. Glide ring is made from very wear resistant hard grade polyurethane. Excellent sealing performance in low and high speeds. Suitable for positioning functions. Negligible tendency to “stick-slip” effect, good sliding properties. Low break-away load after long standstills. Excellent extrusion resistance.