Flange use precautions

Flange is an important part of connecting pipes and equipment, and its use precautions include many aspects, the following is a detailed explanation:

First, prepare before installation

Check the flange:

Ensure that the surface of the flange is free of damage, rust, scratches or other defects.

Check that the bolt holes of the flange are intact and not blocked or damaged.

Prepare tools and materials:

Prepare necessary tools and materials such as bolts, nuts, gaskets, and sealants.

Ensure the quality of tools and materials meets relevant standards and requirements.

Clean flanges and pipes:

Clean the connecting surfaces of flanges and pipes, and remove impurities such as oil, dust, iron filings.

Use a suitable solvent or detergent for cleaning to ensure that the connection surface is clean and pollution-free.

Second, the installation process

For ziflange:

Place the flange correctly on the connection position of the pipe or equipment.

Use dowel pins or other locating tools to ensure that the two flanges are parallel and concentric.

Install gasket:

Choose the appropriate gasket material, such as rubber, asbestos, metal, etc.

Place the gasket between the flanges to ensure that the gasket is properly positioned and not offset or damaged.

Fastening bolts:

Tighten the bolts step by step according to the cross method or other specified sequence.

Use a suitable wrench or torque wrench to ensure that the bolts reach the predetermined tightening torque.

Avoid excessive tightening or loosening to avoid damage to flanges or gaskets.

Third, use and maintenance

Regular inspection:

Check flange joints regularly for looseness, leakage or damage.

Check the fastening of bolts and nuts to ensure that they are in good condition.

Cleaning and maintenance:

Clean the connection surface of flanges and pipes regularly to remove oil, dust and other impurities.

Use suitable lubricants or rust inhibitors to maintain the lubrication and rust resistance of the flange.

Replacement of damaged parts:

If the flange, gasket or bolt is found damaged, it should be replaced in time.

When replacing, ensure that the quality of the new part meets the relevant standards and requirements.

Fourth, other precautions

Avoid high temperature and pressure environments:

In high temperature and high pressure environments, flanges and gaskets may be damaged or deformed.

Measures should be taken to protect flanges and gaskets, such as using insulation, reducing pressure, etc.

Prevent corrosion:

For corrosive media, appropriate flange and gasket materials should be selected.

Periodically check the corrosion of flanges and gaskets, and take necessary anti-corrosion measures.

Follow safety procedures:

When installing, using and maintaining flanges, follow the relevant safety regulations and operating procedures.

Use appropriate personal protective equipment, such as gloves and goggles, to ensure personnel safety.

In summary, the use of flange precautions cover the installation preparation, installation process, use and maintenance and other aspects. By following these precautions, you can ensure the tightness, safety and reliability of flange connections and extend the service life of pipes and equipment.