DAY
Description
High-performing, double acting compact piston seal composed of a profiled rubber ring, two polyurethane back-up rings and two POM back-up rings.
Good sealing effect.
Excellent extrusion & wear resistance.
Reliable sealing for significant and sudden pressure variations.
Assembly in closed groove, reduced machined costs.
* High resistance to gap extrusion.
* Particularly strong wear resistance.
* Insensitivity to shock loads and pressure peaks.
Application
Agriculture
Mobile machinery
Hydraulic cylinders
Materials
Polyurethane (PU) + Nitrile Rubber (NBR)
TECHNICAL DATA
TECHNICAL DATA
| Temperature | -35°C/+90°C |
| Pressure | 50 MPa |
| Speed | 0.5 m/s |
| Medias | Mineral hydraulic oils |
MATERIALS
MATERIALS
PU
Polyurethane is a material that has the elastic properties of rubber. The proportion in its composition (diisocyanate, polyol, chain extender) is determined by its properties. This material is characterised by a strong mechanical resistance, good wear resistance, high elastic modulus, good flexibility and a very good ozone and oxidation resistance.
| Chemical resistance | Pure aliphatic hydrocarbons (propane, butane) Mineral oils and greases Silicone oils and greases Water up to +50°C |
|---|---|
| Compatibility issue | Ketones, esters, ethers, alcohols and glycols Hot water, steam, alkalis, amines and acids |
| Temperature range | -30°C/+90°C -30°C / +110°C with our PUHT (short term peak at 150°C) |
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 | -25°C/+100°C |
DIMENSION
DIMENSION
| Internal Diameter (d) | Outside Diameter (D) | Height (H) |
|---|---|---|
| 32 | 22 | 12 |
| 32 | 22 | 16 |
| 40 | 24 | 18 |
| 40 | 30 | 12 |
| 40 | 30 | 16 |
| 50 | 34 | 18 |
| 50 | 40 | 11 |
| 50 | 40 | 12 |
| 55 | 39 | 18 |
| 60 | 44 | 18 |
| 60 | 45 | 22.5 |
| 63 | 47 | 19 |
| 65 | 50 | 18 |
| 70 | 50 | 22 |
| 70 | 54 | 20 |
| 70 | 55 | 22.5 |
| 75 | 55 | 22 |
| 80 | 60 | 22 |
| 80 | 65 | 22.5 |
| 85 | 65 | 22 |
| 90 | 70 | 22 |
| 90 | 70 | 30 |
| 90 | 75 | 19.5 |
| 92 | 82 | 12.5 |
| 100 | 75 | 22 |
| 100 | 80 | 30 |
| 100 | 85 | 19.5 |
| 105 | 92 | 14.3 |
| 110 | 85 | 22 |
| 110 | 85 | 25 |
| 110 | 90 | 30 |
| 115 | 90 | 22 |
| 120 | 95 | 22 |
| 125 | 100 | 25 |
| 125 | 105 | 24.5 |
| 125 | 105 | 25 |
| 130 | 105 | 25 |
| 140 | 115 | 25 |
| 150 | 125 | 25 |
| 160 | 130 | 25 |
| 160 | 140 | 25 |
| 165 | 145 | 25 |
| 170 | 140 | 25 |
| 190 | 170 | 30 |