How to clean steel expansion joints

Metal expansion joints are the commonly seen pipe fitting, mainly used to compensate pipeline displacement caused by thermal expansion, widely used in all walks of life. The service life of metal expansion joints is effected by various factors, regular inspection and maintenance helps to lower the damage. Besides, during the manufacturing, storage and installation process of steel expansion joints, it will generate rust, welding slag, oil anti-rust agent, dust and sand on the surface, these impurity will greatly affect the normal use of steel expansion joints, thus, proper cleaning and maintaining also benefits to lengthen the service life of a steel expansion joints. We introduces you the cleaning methods for steel expansion joints.

Metal Expansion Joints

1.Chemical cleaning. Use chemical agent to clean the steel expansion joints. Apply temporary pipeline and cycle pump station to chemical clean the steel expansion joints from two sides. Chemical cleaning has the advantages of good flexibility, no requirement for steel expansion joints shape, fast speed, etc..

2.PIG cleaning. It relies on pump to drive fluid to actuate PIG move forward within the pipe, and eliminate the dirt inside the pipeline. PIG cleaning method is widely used in all kinds of process pipe, oil field transportation pipeline cleaning, especially long-distance pipeline cleaning.

3.High pressure water cleaning. Use high pressure water jet above 50Mpa to clean the pipe. It suits for short-distance pipeline, and pipe diameter should more than 500mm. It has advantages of fast speed and low cost.

Henan Lanphan is the leading manufacturer in metal expansion joints industry, we have almost 30-year’s production and selling experience on expansion joints, except for metal expansion joints, our products includes rubber expansion joints, metal flexible hose, metal bellows, fabric expansion joints, rubber check valves, rubber products, etc.. All of those sells good all around the world. If you have any question regards to the pipe expansion joints, please contact us immediately.