VNI/TS-L+LI ROD SEAL HD

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VNI TS-L+LI is a two piece single acting rod seal and similar to the VNI-L  type but with anti-extrusion ring. This seal is recommended when the coupling clearance between the head and the rod cannot be reduced and in the event of high pressure peaks < 700 BAR

PRODUCT ADVANTAGES

  • Superior sealing effect with the secondary lip and a anti extrusionring
  • High wear resistance
  • Secondary sealing lip provides extra protection againstthe ingress of dirt particles.
  • Improved sealing gap due to the active back-up ring
  • Simple groove design

APPLICATION
Construction machinery , fork-lift trucks , injection moulding machines , agricultural machinery , loading platforms and standard cylinders

INSTALLATION:

Easy to assemble in a closed groove, depending on the minimum diameter values indicated in the table below. If the diameter values outside this table, we recommend an open groove. If'm assembly tools are used the mounting area should not have any sharp edges. Before mounting the VNI TS-L+LI must be lubricated with oil system

MINUMUM DIAMETER VALUES FOR CLOSED TYPE OF GROOVES
(D-d)/2 (mm) 4 5 6 7.7 10 12.5 15
dmin (mm) 25 30 40 50 80 100 105

Note: the permissible sealing gap values of VNI TS-L+LI rod seal is given in the below table.

PERMISSIBLE SEALING GAP   Smax (mm)
 200 BAR  0.80 MM 400 BAR 0.50 MM 600 BAR 0.33 MM XX
 300 BAR  0.65 MM 500 BAR 0.40 MM 700 BAR 0.25 MM XX

Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers. 

MATERIAL: PU 93 SH / POM

 

OPERATING CONDITIONS
MEDIA Mineral oils(DIN 51524)  HFA and HFB HFC
TEMPERATURE -40°C +100°C +5°C +50°C -30°C +40°C
PRESSURE ≤700 Bar ≤700 Bar ≤700 Bar
SPEED ≤0.5 m/sn ≤0.5 m/sn ≤0.5 m/sn

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

SURFACE ROUGHNESS Ra Rtmax
Sliding Surface ØD-Ød ≤0.3 μm ≤2.5 μm
Groove Base ØDb-Ødp ≤1.6 μm ≤6.3 μm
Groove Flanks B ≤3.2 μm ≤16 μm
Note: It is recommended to have 50% to 90% of the working surface material contact area value.
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# Vota code Name Application Material Pressure
(bar)
Temperature °C Sliding Speed (m/s)
hydraulic-seals-rod-seal/vni-ts-l-li VNI/TS-L+LI VNI/TS-L+LI ROD SEAL HD ROD/AXLE PU 93SH 700 -40°C +100°C 0.5
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