Seals
Piston rod seal, double-lip design has better sealing effect, and polyacetal back-up ring is better under pressure. The 0-ring has a preloading effect, making the groove embedding more stable, and can be applied to higher pressures and allow larger extrusion gaps, high Under low pressure conditions, the sealing effect is equally significant.
Description
Rod seal, single function, embedded groove stability, special structural design; high pressure resistance, allows larger extrusion clearance.
pressure: ≤70Mpa
speed: ≤0.5m/s
temperature: -40℃～+110℃
Medium: hydraulic oil, emulsion, water
pressure: Mpa 16～130
Maximum extrusion clearance(mm): 0.75～0.25
The surface of the cylinder: φd1 0.1-0.4 μm Ra
The static sealing surface: φD1 1.6max μm Ra
Static groove surface: L1 3.2max μm Ra
Groove part: ≤ S (mm) 6, 8, 10, 11, 12
Minimum slope: C (mm) 4, 5, 6, 7, 8
Maximum amount of chamfering: r1 (mm) 0.2,0.2, 0.4, 0.4, 0.5
The biggest outer diagonal: r2 (mm) 0.5, 0.5, 0.5, 0.5, 0.5
sealing member: PU
elastomer: NBR
POM (Support ring: POM
Specification
| MaterialMain sealing material | Power-transmission fluidtransmission media | TemperatureTemperature range℃ | Speedspeed | Pressurework pressure | Max.Gap FMaximum extrusion gap |
| Hythane 181NBR+POMPolyurethaneRubber + polyformaldehyde | Mineral oilmineral oil | -45~+110 | ≤1.0m/s | 250 bar | F≤0.8mm |
| HFC Water GlycolWater glycol | -30~+60 | 400 bar | F≤0.6mm | ||
| HFA5/95 Water base fluid, WaterWater-based transmission fluid/water | +5~+60 | 500 bar | F≤0.4mm | ||
| 700 bar | F≤0.25mm |
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