K 43 is a three piece single acting sealing set which consists of onereinforced cotton fabric and nitrile rubber vulcanized together, one L shaped thermoplastic guide back-up ring and a retainingring.

PRODUCT ADVANTAGES

  • Functions even with poor surfaces

  • Limited space due to the open housing in one-piece
    piston

  • Reinforced cotton fabric base prevents the seal from
    extrusion

  • Good sealing at low pressures

APPLICATION

Mining equipment, after market, mobile hydraulics, presses andstandard cylinders.

INSTALLATION

Easily assembled into one-piece piston by hand. Open groove design gives an advantage for easy machining and reducing the machining costs. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation all individual parts of the seal must be oiled with system oil.

NOTES

It is recommended to have 50% to 90% of the working surface material contact area value.

MaterialCode
NBR 80 SHORE ANB8001
COTTON FABRIC NBRNB8008
POMPM9901
Surface roughnessRaRmax
Sliding Surface Ød≤0.4 μm≤3.2 μm
Groove Base ØD≤1.8 μm≤6.3 μm
Groove Flanks≤3.2 μm≤16 μm

OPERATING CONTITIONS

MediaMineral oils (DIN 51524)HFA HFBHFC
Temperature-30 °C
+105 °C		+5 °C
+60 °C		-30 °C
+60 °C
Pressure≤500 bar≤500 bar≤500 bar
Speed≤0.5 m/sec≤0.5 m/sec≤0.5 m/sec

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