Flanges, Flange Plates, Weld Neck Flanges, Blind Flanges, Ship Type Flanges, ...
产品Price 5.00/Piece
最小起订Quantity:1 Piece 供货总Quantity: 9999 Piece
Flange manufacturer: |
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Flange Manufacturer: |
20 cm |
Flange Manufacturer: |
20 cm |
Reasons for the loose connection of the manhole flange After long-term use, the gasket may leak. When replacing the gasket, the manhole flange is difficult to open, and a homemade simple tool can be used to forcefully separate the two flanges. The two flange sealing surfaces connected are not parallel. (2) Defects on the manhole flange sealing surface (3) After the pipeline was put into operation, the flange bolts were not retightened for a second time. (4) Gasket Failure: ①Improper material selection; ②Gasket too thick, pierced by high-pressure medium; ③Gasket with wrinkles, cracks, or breaks; ④Gasket fails after long-term use. 5) The flange bolts were not re-tightened after the pipeline was put into operation.

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