DAX Double Wiper

Overview

The DAX Double Wiper features a PTFE profile ring with both a sealing and wiping edge, complemented by two O-rings for pre-stressing. This double wiper is designed to enhance sealing performance, especially when paired with our rod seals ElastGuards.

Components

  • PTFE Profile Ring: Engineered for both sealing and wiping.
  • O-Rings: Pre-stressing elements to ensure optimal function.

Material Specifications

  • PTFE Profile Ring: Made from PTFE-glass-fibre-MOS2 compound or PTFE-bronze compound, although other compounds are available upon request.
  • O-Rings: Available in  nitrile rubber (NBR), HNBR, or fluoroelastomer (FKM). Other material combinations are available upon request.

Customer Benefits

  • Enhanced Reliability: Additional sealing edge ensures improved functional reliability of the sealing system.
  • High Operating Reliability: Robust PTFE profile ring can briefly withstand full operating pressure, ensuring dependable performance.
  • Effective Dirt Removal: Dimensionally stable wiping edge offers excellent dirt removal capabilities.
  • Optimal Control: Favorable frictional behavior ensures excellent control and positioning characteristics, free from stick-slip issues.

Design Guidelines

  • Chamfer the cylinder housing and piston rod/piston to prevent damage.
  • Ensure the length and angle of installation chamfers meet installation space drawing specifications.
  • Maintain surface roughness of the rod as per seal specifications.
  • Groove flanks should have a surface roughness of Ra ≤ 4 µm.
  • Groove base should have a surface roughness of Ra ≤ 2.5 µm.

Installation Guidelines

  • Ensure axial accessibility for installation, particularly for small diameters.
  • Deburr sharp edges and provide seamless chamfers and radii.
  • Thoroughly clean the installation space to remove dust, dirt, and metal chips.
  • Preheat the PTFE part for closed installation spaces to ease installation.
  • Avoid rolling or twisting the O-ring during installation.
  • Ensure the seal is not kinked during assembly.
  • Calibrate the seal after assembly for optimal performance.

O-Ring Energizer

All information regarding available O-ring energizers can be found on the following link: https://kcseals.ca/products/o-rings/ 

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