XR (QUADRING)

product

XR is a double acting X-ring with special design lip to be used both for rod and piston applications.

PRODUCT ADVANTAGES

  • Can be used both for reciprocating and rotating hydraulic applications
  • Low friction compared to o-rings
  • No tool parting line on the dynamic surface
  • No twisting in the groove
  • Both for rod and piston application
  • Economical sealing solution at low pressures

APPLICATION
Hydraulic and pneumatic valves , light duty cylinders , flanges and heavy duty applications.

INSTALLATION
A-ring is assembled into the groove by hand. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the wiper must be oiled with system oil.

NOTES
For special applications that require high temperatures , XR can be produced in FPM material. It can be used up to 400 bar with a back-up ring

MATERIAL: NBR 70 SH

 

OPERATING CONDITIONS
MEDIA Mineral oils
(DIN 51524)
HFA and HFB HFC
TEMPERATURE -30°C   +105°C  
-5°C   +60°C    
-30°C +60°C
SPEED ≤0.5 m/s ≤0.5 m/s ≤0.5 m/s

Note: The above data are maximum values and cannot be used at the same time.

SURFACE ROUGHNESS Ra Rmax
Sliding Surface ≤0.6 μm ≤3.2 μm
Groove Base ≤2.5 μm ≤10 μm
Groove Flanks ≤5 μm ≤18 μm

Note: It is recommended to have 50% to 90% of the working surface material contact area value.

# Vota code Name Application Material Pressure
(bar)
Temperature °C Sliding Speed (m/s)
quad-ring-xr/xr-quadring XR QUADRING XR (QUADRING) STATIC NBR 70SH 50 -30°C +105°C 0.5
FPM 80SH 50 -20°C +200°C 0.5
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