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Back-Up Ring Praedifa Series XA, Polon®
Brand: PraedifaThe XA Polon® anti-extrusion ring (single turn continuous version) is used in combination with O-rings, preferably in static applications, to prevent gap extrusion. XA anti-extrusion rings are suitable for maximum pressure loads. They are intended for installation in axially open grooves.
Polon® anti-extrusion rings are available in three versions:
XA: Single turn continuous
XB: Single turn scarf cut
XC: Spiral cut
Features• Insensitive to pressure peaks.
• High extrusion resistance.
• Excellent media resistance in case of suitable compound selection.
• Suitable compounds available for special requirements of the chemical process industry.
• Suitable compounds available for special requirements of the food processing industry.
• Any desired nominal diameter available due to use of machining technique.
• Installation in closed and undercut housings.
Specifications
Brand
Cushioning Mechanism
- No
Length Unit of Measure
- mm
Maximum Surface Speed (m/sec)
- 0, 0,5, 1,0
Maximum Working Pressure (bar)
- 200, 400, 800
Maximum Working Temperature (°C) Range
- 80° to 230° C
Media
- Hydraulic
Minimum Working Temperature (°C) Range
- -200° to -30° C
Polymer Family
- PTFE (Polytetrafluoroethylene), TPU (Polyurethane), PEEK (Polyether Ether Ketone)
Pressure Range (bar)
- Medium Pressure (< 250 bar)
Thermal Application (°C)
- Expanded Low & High Temperature (< -35° to 140° C)