TESCO GSM is a two-piece double-acting piston seal consisting of a thermoplastic sealing element with a slot, and an elastomeric ring for the pre-tension.
Easy assembly with a piston in one piece. Sealing elements must be pre-assembling system rubbed with oil
NOTES: It is recommended to use with minimum two piston guide rings (DWR/EDWR) in long-stroke cylinders , minimum one guide ring (DWR/EDWR) in short stroke and under low radial loads
NOTES: the permissible sealing gap values of TESCO GSM piston seal is given in the below table.
|PERMISSIBLE SEALING GAP Smax (mm)|
|B (mm)||800 Bar|
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: PA / NBR 80 SH|
|MEDIA||Mineral oils(DIN 51524)||HFA and HFB||HFC|
|TEMPERATURE||-30°C +105°C||+5°C +60°C||-30°C +60°C|
|PRESSURE||≤800 Bar||≤800 Bar||≤800 Bar|
|SPEED||≤1.0 m/sn||≤1.0 m/sn||≤1.0 m/sn|
Note: The above data are maximum values and cannot be used at the same time.
|Sliding Surface ØD-Ød||≤0.4 μm||≤4 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.
CB = Custom build (price on request)
* = Stock item
Stock = 0 (and not a Stock* or CB product) -> minimum item value € 10.00