How to Restore Scratches of Flange Sealing Surface

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Home » News » How to Restore Scratches of Flange Sealing Surface

How to Restore Scratches of Flange Sealing Surface

author: Jeawin time: 2014-08-14 14:58 hits: 2426

During the installation in spring, flange will appear wearout and scratches in certain sections due to the weather temperature such as the inlet and discharge outlet of flange interface with pressure sensors and temperature sensors. Flange sealing surface is easy to be damaged and be scratched in the process of using. Therefore, how we ought to avoid and repair these defects?

First of all, we should strengthen the method of the flange bolt tightening torque values which is suitable for flange sealing surface having rust and mild scratches in the installation. In general, we can take advantage of the related equipment to process on-site sealing process service for any materials whose diameter is from 20 mm to 12000 mm, such as cast iron, steel, stainless steel and special steel material. Each flange end face machine can be adjusted to meet the industry standard requirements of surface finish.

Secondly, it is acceptable to use grinding ring to restore small part of sealing surface bead weld at the scene of the artificial ground. As a large reactor pressure vessel, it is the necessary equipment in the field of chemical industry and oil refining. Flange interface of pressure vessel is the only channel to input and output materials, and it is the connector to butt joint other facilities. It must be guaranteed in a long-term period that the pressure vessel docking interface sealing for each pressure vessel. The flange end face seal groove precision and the quality of sealing material are most directly affected with the sealing.

Finally, it is advisable to conduct off-line repairing. We often use this method when dealing with the sealing surface whose cracks and defeats are very serious, and we can not repair it online or can not meet the requirements.

How to Restore Scratches of Flange Sealing Surface

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