CH E7 is a seven piece single acting sealing set which consists of one reinforced cotton fabric pressurering , one thermoplastic supportring , three reinforced cotton fabric middle rings , and two elastomeric nitrile rubber middle rings.
Used especially in hard working conditions such as iron and steel industry , mining equipment , marine hydraulics , scrap cutters and special cylinders where the actual conditions are difficult to predict.
For mounting in the housing, the groove must have a space 7.5% above the level of the Stacking. If the Stacking is used in a closed housing, separate parts in an angle of 45 ° are to be cut. When mounting jump with an angle of 75 °. At very high pressures, the flexibility of the seal may be set significantly reduced. This could cause excessive friction and wear and vibrate at low pressures. If'm assembly tools are used the mounting area should not have any sharp edges. Before mounting the CH E7, part by part to be lubricated with oil system.
NOTES: For special applications that require high temperatures , our seal set is being manufactured in the following configuration , reinforced cotton fabric with FPM for header and middle rings and special mixture of PTFE backup ring. Permissible sealing gap S value should not be above 0.15 mm. For inner diameters above 200 mm , all the middle rings are being produced from reinforced cotton fabric with NBR material. Additional middle rings can be used depending on the application.
|MATERIAL: POM / COTTON FABRICK 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||≤400 Bar||≤400 Bar||≤400 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.
|Sliding Surface ØD-Ød||≤0.4 μm||≤3.2 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