This three-piece high-pressure piston seal is a advanced sealing solution designed for use in demanding hydraulic and pneumatic applications. These seals typically consist of a central elastomeric sealing ring flanked by two guide rings, which are usually made from high-performance thermoplastic materials. These integrated L-shaped wear rings, ensure that it can handle vertical or no-drift pistons effectively. This design requires a split piston for smaller diameters, simplifying installation. The compact nature of the seal reduces the axial height of the piston, thus lowering the overall height, weight, and cost of the piston assembly. This efficiency in design and functionality makes three-piece high-pressure piston seals a preferred choice in various industries, including mining, marine hydraulics, and metal processing.
In addition, these seals are ideal for applications requiring robust performance under extreme conditions, such as heavy-duty industrial machinery and equipment. The combination of materials in the three-piece design ensures excellent wear resistance, low friction, and long service life, even in harsh environments.
| Specification | Details |
| Pressure Capacity | Max Pressure 6000 psi |
| Operational Speed | Up to 1.65 feet per second (0.5 meters per second) |
| Temperature Range | -35°C to 100°C | -22°F – +212°F |
| Material | Description | Temperature Range |
| NBR | NBR (Nitrile Butadiene Rubber) is a highly valued sealing material due to its excellent resistance to oils, fuels, and other chemicals, making it an ideal choice for applications in the automotive and aerospace industries. With a temperature operating range, NBR provides versatility under varied environmental conditions. Very cost effective option. | -40°C to 120°C -40°F to 248°F |
| Material | Description | Temperature Range |
| POM | Polyacetal, also known as polyoxymethylene (POM), is a high-performance thermoplastic prized for its strength, rigidity, and excellent wear resistance. These properties, along with its dimensional stability and low friction coefficient, make it an ideal material for anti-extrusion rings in hydraulic and pneumatic sealing systems. Anti-extrusion rings prevent the primary seal from extruding into clearance gaps under high pressure, and polyacetal’s ability to resist deformation under load and operate across a broad temperature range ensures reliable performance and extended seal life in demanding environments | -35°C to 100°C -22°F – +212°F |
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