Heavy-Duty, Four-Piece Piston Seal
Series 254: Heavy-Duty, Four-Piece Piston Seal
The 254 Series is one of the most robust four-piece piston seals available on the market. It consists of a profiled energizer, a PTFE-filled seal element and two active anti-extrusion backup rings. It is designed for double-acting cylinders in heavy-duty applications subject to severe pressure spikes coupled with high running clearance.
Installation
Benefits
Long service life under the harshest conditions
compatible with water-base fluids
Optimized for high running clearance
Easy installation
Applications
The 254 Series, four-piece piston seal is ideal for heavy duty sealing applications where pressure spiking can occur.
Typical Applications
- Forging presses
- Extrusion presses
- Stamping presses
- Mining
- Specialty high-pressure cylinders
- Various advancing and secondary cylinders
The 254 Series piston seal features a robust NBR elastomer, a seal cap in low-friction PTFE-filled and two backup rings in high-strength thermoplastic.
| Material | Code |
|---|---|
| PTFE-Bronze compound / NBR / POM | MT24 |
| Temperature | MT24 °C |
°F |
||
|---|---|---|---|---|
| hydraulic oil | -30…+100 | -22…+212 | ||
| water oil emulsions (HFA) | - | - | ||
| water-glycol fluids (HFC) | - | - | ||
| polyol esters (HFD) | - | - | ||
| water | - | - | ||
| Speed | 1.5 m/s (5 ft/sec) | |||
| Pressure | 500 bar (7250 psi) | |||
Note:for other materials or fluids please contact our engineering department.
