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Hydraulic & Fluid Seals > Rod
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Merkel
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Merkel Hydraulic Rod Seals
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Click each link below to expand the corresponding Product Information.
- T20 MERKEL Asymmetrical Rod Seal
Asymmetrical U-Cup with an inner sealing lip set back and press fit on the outer diameter. Single-acting rod seal for standardized housings, amongst others, according to ISO 5597. The T20 is well suited as a secondary seal within a sealing system.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
| 95 AU V142 |
5800psi
(40 MPa) |
1.5 ft/s
(0.5 m/s) |
Asymmetrical U-Cup with inner sealing lip set back and press fit on the outer diameter. Single-acting rod seal for standardized housings, amongst others, according to ISO 5597; well suited as a secondary seal within a sealing system.
- Good media resistance
- Wide range of temperatures
- Very good static and dynamic tightness
- Low breakaway force (in comparison to compact seals or U-cups with secondary sealing edge in corresponding material
- Dynamic pump-back capability
- Use as an individual seal or as a secondary seal possible within sealing systems
- LF 300 MERKEL Low Friction Rod Seal
U-Cup with asymmetric profile, inner sealing lip set back, grooved contact surface on the inner diameter, and press fit on the outer diameter. Features include low friction, smooth operation even at low linear velocities, very good dynamic pump-back capability and use as an individual seal or secondary seal possible within sealing systems low friction, smooth operation even at low linear velocities, dynamic pump-back capability use as an individual seal or secondary seal possible within sealing systems.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
| 95 AU 925 |
4700psi
(32 MPa) |
1.8 ft/s
(0.6 m/s) |
U-Packing with asymmetric profile, inner sealing lip set back, grooved contact surface on the inner diameter as well as press fit on the outer diameter. Single-acting rod seal for standardized housings, amongst others, according to ISO 5597.
- Very good static and dynamic tightness
- Low friction, smooth operation even at low linear velocities, dynamic pump-back capability
- Use as an individual seal or secondary seal possible within sealing systems
- OMS-MR MERKEL OMEGAT OMS-MR Low Friction Rod Seal
Two-part seal set made from PTFE profile ring with one O-Ring as a pre-load component. Rod seal used in particular within a sealing system. Features include: very high pressure stability under load, good thermal conductivity, very good extrusion strength, high resistance to abrasion low friction, and no stick-slip.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
PTFE M201 / 70 NBR B276
(PTFE Glass-MoS2/NBR) |
5800psi
(40 MPa) |
15 ft/s
(5 m/s) |
Two-part seal set made from PTFE profile ring with one O-Ring as a pre-load component. Rod seal used in particular within a sealing system.
- Very high pressure stability under load
- Low friction, smooth operation even at low linear velocities, dynamic pump-back capability
- Very good extrusion strength
- High resistance to abrasion
- Low friction, free of stick-slip
- T22 MERKEL Asymmetrical Rod Seall
Polyurethane U-Cup with good media resistance, wide range of temperatures, and very good static and dynamic tightness. Not suitable for sealing systems due to low pump-back capability.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
| 95 AU V142 |
5800psi
(70 MPa) |
1.5 ft/s
(0.5 m/s) |
Assymetrical Polyurethane U-Cup with shortened inner lip and second support edge and sealing edge as well as press fit on the outer diameter. Single-acting rod seal, also for standardized housings according to ISO 5597.
- Highly wear-resistant
- Good media resistance
- Wide range of temperatures
- Very good static and dynamic tightness
- Low pump-back capability, therefore not suitable for sealing systems
- T 23 MERKEL T23 Rod Seal, with Back-Up
Two-part seal set with shortened inner lip and active backup ring with press fit on the outer diameter. The U-packing set T 23 is mainly used with high pressures and is designed for housings according to ISO 5597.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
| 95 AU V142 |
7300psi
(50 MPa) |
1.5 ft/s
(0.5 m/s) |
Two-part seal set with shortened inner lip and active backup ring with press fit on the outer diameter. The U-packing set T 23 is mainly used with high pressures and is designed for housings according to ISO 5597.
- Bridges large gaps even with high pressures
- Wide temperature application
- Pressure spiking applications
- Works well with water-based fluids
- Very good static and dynamic tightness
- Highly wear-resistant
- Syprim MERKEL Syprim Rod buffer Seal with Back-Up Ring
Two-part seal set for use as a primary rod seal. The Syprim seal set SM is always used in combination with packing (e.g.T20) within a sealing system. The Syprim seal is designed especially for use as a system seal.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
| 95 AU V142 |
5800psi
(40 MPa) |
1.5 ft/s
(0.5 m/s) |
Two-part seal set for use as a primary rod seal. The Syprim seal set SM is always used in combination with packing (e.g.T20) within a sealing system. The Syprim seal is designed especially for use as a system seal.
- Quick-assembly primary seal
- No pressure entrapment between primary and secondary seal low friction
- Low friction
- Highly wear resistant
- Activated backup ring prevents extrusion
- OMS-S MERKEL OMEGAT OMS-MR Low Friction Rod Seal
Two-part seal set for sealing piston rods, consisting of a profile ring with a rubber profile ring as a pre-load component. Other combination of materials are available upon request. The OMEGAT OMS-S is used especially for larger diameters and heavy hydraulic applications.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
| PTFE M201/80 NBR 246 |
5800psi
(40 MPa) |
1.5 ft/s
(0.5 m/s) |
Two-part seal set for sealing piston rods, consisting of a profile ring with a rubber profile ring as a pre-load component. Other combination of materials are available upon request. The OMEGAT OMS-S is used especially for larger diameters and heavy hydraulic applications.
- Very high pressure stability under load
- Very good extrusion strength
- Design prevents twisting
- High contact pressure through rubber profile ring
- High resistance to abrasion
- Low friction, free of stick-slip
- S 8 MERKEL Compact Rod Seal
One-part rod seal with rubber head set in the fabric part. Compact seal, even for standardized housings according to ISO 5597.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
| 70 NBR B209 |
3700psi
(25 MPa) |
1.5 ft/s
(0.5 m/s) |
One-part rod seal with rubber head set in the fabric part. Compact seal, even for standardized housings according to ISO 5597.
- Simple assembly
- Excellent sealing even in low pressure area
- Low friction through the fabric part
- T24 MERKEL Telescopic Rod Seal
Single-acting rod seal especially for telescopic cylinders and installation space radially limited.
Technical Data
| Medium/Temperature |
Pressure |
Linear Velocity |
| 95 AU V142 |
5800psi
(40 MPa) |
1.5 ft/s
(0.5 m/s) |
Asymmetrical U-Cup with inner sealing lip set back and additional support edge. Single-acting rod seal especially for telescopic cylinders and radially limited installation space.
- Very good static and dynamic tightness
- Additional sealing edge prevents ingress of dirt to a large degree
- Low dynamic pump-back capability, not suitable for sealing systems
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