HPRS S05 - Piston seals

Type/Ref.: Piston/Rod seal

Pressure (bar): 200
Temp. (°C): -30/+100
Speed (m/s): 0,5

Material:
NBR/NBR-impregnated
fabric

Dimensions:
metr. inch

one-piece rod seal

Application

Hydraulic systems

Material

NBR-Elastomer reinforced on the back.

Function

Single acting compact rod seal.
Good sealing performance also at low pressure, to be used also for single acting piston.

Media

Hydraulic oils according to DIN 51524/51525 Non-inflammable hydraulic fluids HFA, HFB, HFC

Operating conditions

Pressure (MPa/bar): 20/200
Temperature (°C): -30 to +100
Speed (m/s): 0,5

Lead-in chamfer "C"

Seal section S ...4 4...6 6...7,5
Lead-in chamfer C 2,5 3 5

Surface finish

Surface roughness Ra R†
Dynamic sealing face ≤ 0,3 μm ≤ 3 μm
Static sealing face ≤ 1,8 μm ≤ 10 μm
Static housing faces ≤ 3 μm ≤ 16 μm

Extrusion gap "G"

When used with an exceeding operating pressure or a wider gap "G" a support ring will be suitable.

Pressure MPa 10 16 20
Extrusion gap Gmax. 0,2 0,15 0,1

Installation

Seals of 20 mm diameter and above can be mounted in an one-piece seal housing. Below 20 mm and for piston sealing a split housing is required.

Remarks

The sizes published in the table show the standard range, permanently at stock, resp. short-term available.

Further dimensions available on request.