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HomeHydraulic SealsA159 hydraulic seals

A159 hydraulic seals

A159 rod seals are composed of a high performance PU ring and an NBR O-ring.

They are designed as an altrernative for seals made of PTFE material.

 

Advantages of A159 over PTFE seals:

  • No need for special assembly apparatus or conical sleeves during assembly.
  • Very good price advantage
  • Higher extrusion resistance
  • Better sealing behavior
  • Higher pressure resistance

 

TECHNICAL DATA

Working pressure

500 bar

Working temperature

-30 +105 °C

Sliding speed

0.5 m/s

Material

PU 98 + NBR 70

Media

Mineral base hydraulic oils

Surface Roughness

 

Ra

Rmax

Dynamic surface

≤ 0.4 μm

≤ 3.2 μm

Groove base

≤ 1.6 μm

≤ 6.3 μm

Groove flanks

≤ 3.2 μm

≤ 16 μm

Maximum Permissible Gap

Housing length (mm)

Pressure (bar)

150

250

400

2.2

0.25

0.20

0.15

3.2

0.30

0.20

0.10

4.2

0.35

0.25

0.15

6.3

0.40

0.25

0.20

8.1

0.50

0.30

0.20

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