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Unbalanced Seal
Single Acting, Independent of Direction of Rotation |
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Mechanical Seal Series 73 & 73L |
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Face Materials:
Carbon / Lecrolloy
Carbon / Ceramic
Carbon / Silicon carbide
Silicon Carbide / Silicon Carbide
Metal Parts:
SS 316, SS 304
Secondary Seal :
Nitrile, Viton |
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Water Pumps |
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Submersible Pumps |
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Single acting |
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Unbalanced |
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Single helical coil spring (77) |
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Independent of direction of rotation |
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Torque transmission by Elastomer Collar |
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Shaft Diameter d1 : 12 .... 100 mm
Pressure p : 12 bar (max)
Temperature t : _ 20 .... +1800 C
Velocity v : 20 m/sec |
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Series 73 & 73L are single coil springs with elastomeric bellows for water, Oil and light duties. This seal has self
aligning feature which compensate abnormal shaft end play and run out, which leads to improved service life.
Elastomeric bellow protect shaft and sleeve from fretting. Drive to the seal faces is given through notches - provided
on retainer. Seal can be repaired in field with minimum spares minimising the down time cost. |
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