מכונה אטם מהיר, אטם בוכנה דו כיווני מורכב מאלמנט של אטם דינמי, מאופיין בחיכוך נמוך וביצועי מהירות גבוהה
מאפיינים עיקריים
Description
Double Acting Piston Seal
Material of dynamic surfase
Type: Polytetrafluoroethylene + Bronze
Designation: SEALFLON + Bronze
Material of static surfase
Type: Nitril Rubber NBR
Designation: RUBSEAL 70
Hardness: 70 °ShA
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Field of application |
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Pressure ≤ 600 bar |
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Speed ≤ 15 m/s |
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Temperature |
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–30°C ÷ +130°C (with OR in NBR) |
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–30°C ÷ +200°C (with OR in FKM) |
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Fluids High compatibility with nearly all fluids (with the right choice of O-Ring material) |
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Lead-in chamfers |
Lead-in chamfers |
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S |
L |
S |
L |
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6.5 |
8.1 |
2.0 |
2.2 |
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7.5 |
9.5 |
2.5 |
3.2 |
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10.0 |
13.8 |
3.5 |
4.2 |
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5.0 |
6.3 |
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Gap dimension "g" |
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The largest gap dimension appearing in operation on the non-pressurised side: |
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400 Bar |
200 Bar |
100 Bar |
L |
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0.30 |
0.40 |
0.60 |
2.2 |
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0.30 |
0.50 |
0.80 |
3.2 |
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0.40 |
0.50 |
0.80 |
4.2 |
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0.40 |
0.60 |
1.00 |
6.3 |
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0.50 |
0.70 |
1.20 |
8.1 |
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0.60 |
1.00 |
1.40 |
9.5 |
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1.20 |
1.40 |
2.00 |
13.8 |
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>400bar → gmax = H8/f8a |
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Surface roughness |
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Dynamic surface Ra ≤ 0.3 μm Rt ≤ 2.5 μm |
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Static surface Ra ≤ 1.6 μm Rt ≤ 6.3 μm |
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