Italian
| Code | Description | D(H8) | d(h9) | B(-0/+0.2) | r | n |
|---|
K504 is a three piece double acting compact seal which consists of one fabrik reinforced elastomeric sealing element and two thermoplastic guide back-up rings.
PRODUCT ADVANTAGES
• Low friction , free of stick-slip
• Improved abrasion resistance
• Good dynamic and static sealing
• Long service life
• Reliable solution in water and water based media
APPLICATION
Mining equipment , iron and steel industry , marine hydraulics and earth moving equipment.
INSTALLATION
K504 profile has been designed to be installed in a closed or open grooves taking the indicated catalogue information into consideration. We recommend having open groove design for dimensions that are smaller than Ø 50mm. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the sealing element must be oiled with system oil.
| MATERIAL | CODE | |
| NBR | 80 SHORE A | NB8001 |
| COTTON FABRIC NBR | FB8001 | |
| POM | PM9901 |
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OPERATING CONDITIONS |
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MEDIA |
Mineral Oils |
HFA and |
HFC |
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TEMPERATURE |
-30°C |
+5°C |
-20°C |
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PRESSURE |
≤500 bar |
≤500 bar |
≤500 bar |
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SPEED |
≤0.5 m/s |
≤0.5 m/s |
≤0.5 m/s |
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Not: The above data are maximum values and can not be used at the same time.
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SURFACE ROUGHNESS |
Ra |
Rmax |
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Sliding Surface ØD |
≤0.4 μm |
≤3.2 μm |
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Groove Base Ød |
≤1.6 μm |
≤6.3 μm |
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Groove Flanks B |
≤3.2 μm |
≤16 μm |
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Note: It is recommended to have 50% to 90% of the working surface material contact area value. |
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PERMISSIBLE SEALING GAP |
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ØD (mm) |
S max (mm) | |||
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x |
250 bar | 350 bar | 400 bar | 500 bar |
|
≤80 |
0.60 |
0.55 |
0.45 |
0.35 |
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>80 |
0.65 | 0.60 | 0.50 | 0.40 |