Single-Acting Piston Seal
Series 281: Single-Acting Piston Seal
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
Benefits
High-temperature resistance
Low wear
Extrusion resistant
Compatible with a wide range of media
Available in diameters up to 2100 mm
Applications
The 281 Series Single-Acting Piston seal is ideal for high-pressure sealing applications, offering low-friction performance and single-acting operation.
Typical applications include:
- Rolling Mills
- Injection Molding Machines
- Agricultural Hydraulics
- Hydraulic Presses
- Mobile Hydraulics
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.
| Material | Code |
|---|---|
| PTFE Bronze Compound + NBR O-ring | MT23 |
| PTFE Bronze Compound + FPM O-ring | MT26 |
| PTFE Glass MoS2 Compound + NBR O-ring | MT83 |
| PTFE Glass MoS2 Compound + FPM O-ring | MT86 |
| Temperature | MT23 °C |
°F |
MT83 °C |
°F |
|---|---|---|---|---|
| hydraulic oil | -30…+100 | -22…+212 | -30…+100 | -22…+212 |
| water oil emulsions (HFA) | -…- | -…- | +5…+60 | +40…+140 |
| water-glycol fl uids (HFC) | -…- | -….- | -30…+600 | -22…+140 |
| polyol esters (HFD) | - | - | - | - |
| water | -…- | -…- | -5…+100 | +40…+212 |
| Speed | 5 m/s (16.5 ft/sec) | |||
| Pressure | 400 bar (6000 psi) | |||
Note:for other materials or fluids please contact our engineering department.
