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Mechanical seals should pay attention to questions

1, device notes
(1) pay great attention to avoid the device errors in the device
A, tighten the gland should be aligned in the coupling bolts should be uniform, avoid end cap oblique, with a feeler to view each point, the error is not greater than 0.05 mm.
B, check the gland and clearance cooperation shaft or shaft diameter (i.e. concentricity), near to the uniform, check with the feeler. The difference is not greater than 0.01 mm.
(2) the amount of spring tightening according to the rules, there are too large or too small scene is not allowed, request error of 2 mm. Excessive assembly end face than pressure, another speed end wear. Too small to form, less than the pressure, but can not play a sealing role.
(3) the dynamic ring device can ensure the beard on the shaft sensitive movement, the moving ring pressure to the spring after should be able to automatically bounce back.
2, when opening notes
(1) in the open mechanical seal should be careful, ban the use of hammer and flat shovel, to avoid damage to the sealing element. The utility model can be used as a pair of steel wire hooks, and the sealing device is pulled out when extending into the gap of the driving seat in the direction of self profit and loss. If the dirt is not removed, it should be cleaned and then disassembled.
(2) if both ends in the pump with mechanical seal, in the installation, take care of each other apart in the process of care for this and lose that avoid.
(3) for mechanical seals that work, where the gland is loose and the seal moves, the dynamic ring parts need to be replaced and should not be used again and again. Because in the kind of Ying after copy, friction track will attack changes, touch the surface of the seal is very simple destruction.1, device notes
(1) pay great attention to avoid the device errors in the device
A, tighten the gland should be aligned in the coupling bolts should be uniform, avoid end cap oblique, with a feeler to view each point, the error is not greater than 0.05 mm.
B, check the gland and clearance cooperation shaft or shaft diameter (i.e. concentricity), near to the uniform, check with the feeler. The difference is not greater than 0.01 mm.
(2) the amount of spring tightening according to the rules, there are too large or too small scene is not allowed, request error of 2 mm. Excessive assembly end face than pressure, another speed end wear. Too small to form, less than the pressure, but can not play a sealing role.
(3) the dynamic ring device can ensure the beard on the shaft sensitive movement, the moving ring pressure to the spring after should be able to automatically bounce back.
2, when opening notes
(1) in the open mechanical seal should be careful, ban the use of hammer and flat shovel, to avoid damage to the sealing element. The utility model can be used as a pair of steel wire hooks, and the sealing device is pulled out when extending into the gap of the driving seat in the direction of self profit and loss. If the dirt is not removed, it should be cleaned and then disassembled.
(2) if both ends in the pump with mechanical seal, in the installation, take care of each other apart in the process of care for this and lose that avoid.
(3) for mechanical seals that work, where the gland is loose and the seal moves, the dynamic ring parts need to be replaced and should not be used again and again. Because in the kind of Ying after copy, friction track will attack changes, touch the surface of the seal is very simple destruction.
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Hits:  UpdateTime:2017-06-05 18:25:46