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281 Series: Piston Seal – Single Acting – OR Energizer
The 281 Series Single-Acting Piston Seal is a low-friction design, consisting of a PTFE filled seal and an O-ring energizer.
281 Series
The 281 Series single-acting piston seal is a low-friction design, consisting of a PTFE filled seal and an O-ring energizer. It is designed for single-acting cylinders in challenging applications, where low friction and high wear resistance are needed
Installation Drawing
Material Ranges
System Seal’s custom blended PTFE filled compounds provide ultra-low friction and high-speed performance with minimal wear. The standard compounds are PTFE filled with Bronze filler, or PTFE filled with Glass-Moly. The temperature range of the seal can be increased by selecting an FPM energizer in place of the standard NBR energizer.
| PTFE-Bronze compound + NBR energizer | MT23 |
| PTFE-Bronze compound + FPM energizer | MT26 |
| PTFE-Glass/MoS2 compound + NBR energizer | MT83 |
| PTFE-Glass/MoS2 compound + FPM energizer | MT86 |
Temperature Ranges
MT23
MT83
°C
°F
hydraulic oil
-30…+100
hydraulic oil
-22…+212
Speed
5 m/s (16.5 ft/sec)
Speed
5 m/s (16.5 ft/sec)
Pressure
400 bar (6000 psi)
Pressure
400 bar (6000 psi)
hydraulic oil
-30…+100
hydraulic oil
-22…+212
water oil emulsions (HFA)
+5…+60
water oil emulsions (HFA)
+40…+140
water-glycol fluids (HFC)
-30…+60
water-glycol fluids (HFC)
-22…+140
water
-5…+100
water
+40…+212
Speed
5 m/s (16.5 ft/sec)
Speed
5 m/s (16.5 ft/sec)
Pressure
400 bar (6000 psi)
Pressure
400 bar (6000 psi)
CAD Files
Engineered Performance
Built to Perform
The 281 Series Single-Acting Piston seal is ideal for high-pressure sealing applications, offering low-friction performance and single-acting operation.
Benefits
- High-temperature resistance
- Low wear
- Extrusion resistant
- Compatible with a wide range of media
- Available in diameters up to 2100mm
Applications
- Rolling Mills
- Injection Molding Machines
- Agricultural Hydraulics
- Hydraulic Presses
- Mobile Hydraulics
