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The 730 type double-acting piston seal in a four part assembly is designed for use in heavy-duty applications where position holding ability is important, such as longwall mining roof support applications using water-based fluids and large diameter crane cylinders using standard hydraulic oils. The seal is comprised of a tough, wear resistant thermoplastic polyester elastomer (TPE) face seal pre-loaded by a profiled nitrile rubber energiser. The design also contains a pair of rectangular polyacetal anti-extrusion rings. The standard TPE face material is suitable for both roller-burnished and honed tubing.
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| Product properties | |
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| Brand | Hallite |
| Category | Double Acting |
| Inside Diameter (mm) | 275.0 |
| Outside Diameter (mm) | 300.0 |
| Width (mm) | 25.0 |
| Series | Metric |
| Type | Double Acting Piston Seal |
| Style | 730 |
| Piece Qty | 4 |
| Material (Energiser) | Nitrile Rubber |
| Material (Anti-Extrusion Ring) | POM |
| Material (Sealing Face) | Thermoplastic |
| Max Pressure Rating (Bar) | 700 |
| Technical Documents |
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| Product Data Sheet |
| Download |
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| Product Data Sheet |