Rod seals ES are axial preload seals

Product Advantages:

Designed for various liquid types and temperature ranges, the material selection ensures optimal performance under specific working conditions.

Key Features:

  • Adaptable to special working environments by adjusting axial preload (using slots or ring head screws).
  • Stable design makes it resistant to high-pressure peaks.
  • Less sensitive to medium contamination and minor sliding surface damage compared to single seals.
  • Multiple sealing lips and a broad contact area ensure excellent sealing efficiency.
  • Seals can be cut for easy installation, eliminating the need to fully disassemble the cylinder during maintenance or repairs.

Product Video

Product Introduction

ES type piston rod seals have 5 V-rings (3 fabric reinforced seals, 2 rubber seals), 1 support ring and 1 retainer ring. The supporting ring can be made of hard fabric material or plastic, and the retaining ring can only be made of hard fabric.
For rod diameters 80mm and larger, we supply assemblies with 4 fabric reinforced V-ring seals and 1 rubber seal, and for rod diameters 140mm and larger, we supply assemblies with 5 fabric reinforced V-ring seals.

V-ring seal has radial preloading, so that the seal lip and inner and outer diameters have close contact, so as to get good sealing performance with low friction. The working pressure can effectively make the sealing and the mating surface between the tight match. Adjustable grooves (ring head screws or slots) are used to achieve the best fit of relevant friction and sealing properties. Thanks to this adjusting device, the seals can have a longer working life.

Technical Details

DoubleActing
Helix
Oscillating
Reciprocating
Rotary
SingleActing
Static

 

Ø – Range Pressure Range Temp Range Velocity
10~1500 ≤500 bar -40~+200℃ ≤0.5m/s