DE
Description
DE are U-ring type piston seals with asymmetrical rubber lips.
Application
Shock absorbers
Distributor
Standard cylinders
Materials
NBR 75
NBR 80
FKM 80
TECHNICAL DATA
TECHNICAL DATA
| Temperature | -30°C/+150°C |
| Pressure | 1.6 MPa |
| Speed | 1 m/s |
| Medias | Lubricated air Oil-free air Non-aggressive gases |
MATERIALS
MATERIALS
NBR
Nitrile rubber (NBR) is the general term for acrylonitrile-butadiene copolymer. The ACN content can vary between 18% and 50%. While the acrylonitrile content is important, the resistance to oil and fuel is more so. Conversely, the elasticity and compression set are not as good. The NBR has good mechanical properties and good wear resistance. However, its resistance to atmospheric agents and the ozone is relatively low.
| Chemical resistance | Aliphatic hydrocarbons (propane, butane, petroleum, diesel fuel) Mineral oils and greases Fire-resistant fluids (HFA, HFB and HFC) Diluted acids, low-temperature alkaline and saline solutions Water (up to +100°C max) |
|---|---|
| Compatibility issue | Fuels with high aromatic content Aromatic hydrocarbons (benzene) Chlorinated hydrocarbons (trichlorethylene) Polar solvents (ketone, acetone, acetic acid, ethylene-ester) Strong acids Glycol-based brake fluids Atmospheric and ozone agents |
| Temperature range | -30°C/+100°C |
FKM
Depending on their structure and fluorine content, the chemical resistance and resistance to the cold in fluororubbers can vary. This FKM-based rubber is very often used for high-temperature hydraulics and pneumatics, for industrial valves, injection/fuel systems, motor seals and high-vacuum systems.
| Chemical resistance | Mineral oils and greases, ASTM n°1, IRM 902 and IRM 903 oils. Fire-resistant liquids (HFD) Silicone oils and greases Mineral and vegetable oils and greases Aliphatic hydrocarbons (propane, butane, petroleum) Aromatic hydrocarbons (benzene, toluene) Chlorinated hydrocarbons (trichlorethylene) Fuel (including high alcohol content) Atmospheric and ozone agents |
|---|---|
| Compatibility issue | Glycol-based brake fluids Ammonia gas Organic acids with a low molecular weight (formic and acetic acids) |
| Temperature range | -20°C/+200°C |
DIMENSION
DIMENSION
| Item | D | d | H1 | H2 | S | h | D2 | D3 |
|---|---|---|---|---|---|---|---|---|
| DE 0602 25144* | 6 | 2 | 2.8 | 2.3 | 1.25 | 1.45 | 3.2 | 5 |
| DE 0803 25117 | 8 | 3 | 3.7 | 3 | 1.5 | 1.8 | 4.2 | 6.3 |
| DE 1003 25117* | 10 | 3 | 3.7 | 3 | 1.5 | 1.8 | 5.2 | 8 |
| DE 1203 25108 | 12 | 4.5 | 4.4 | 3.4 | 2 | 2.3 | 6.9 | 9.4 |
| DE 1603 25108 | 16 | 4.5 | 4.4 | 3.4 | 2 | 2.3 | 6.9 | 13.2 |
| DE 2005 25117 | 20 | 6 | 5.5 | 4.4 | 2.5 | 2.8 | 9.4 | 17 |
| DE 2506 25108 | 25 | 7 | 6.4 | 5.4 | 3 | 3.5 | 10.8 | 21.2 |
| DE 3208 25117 | 32 | 8 | 7.5 | 6 | 3 | 3.5 | 12.5 | 27 |
| DE 4008 25117 | 40 | 8 | 8.5 | 7 | 4 | 4.5 | 17 | 34.9 |
| DE 5010 25117 | 50 | 10 | 10 | 8 | 4 | 4.5 | 26 | 43.9 |
| DE 6312 25117 | 63 | 12 | 10 | 8 | 4 | 4.5 | 26 | 56.6 |
| DE 8016 25117 | 80 | 16 | 11.4 | 9.4 | 5 | 5.5 | 30 | 72 |
| DEA02025117 | 100 | 20 | 12.9 | 10.9 | 6 | 6.5 | 35 | 91 |