How to solve the leakage of large size forged flange
In the process of using large size forged flange,leakage occurs due to improper connection of large flange or long service life.Users need not worry about this situation.First,look at the leakage site.In general,it is impossible to eliminate the leakage by injecting sealant into the gap due to the minimal gap between large flange joints.
Sealing construction method is based on the leakage site survey,in order to achieve limited plugging,fixed fixture method is used to contain the leakage point and form a sealing chamber,injecting sealant,thereby eliminating leakage.Fixtures on one side are customized.Fixtures should satisfy the leakage point of large size forged flange.
The first point is to establish a sealing chamber between the large size flange of valve body and the large size flange of pipeline to connect the short flange.In order to prevent the potential leakage of the clearance between the valve body and the large size flange due to pressure constraints,the annular cavity is injected at the outer edge of the clamp and the large size flange of the valve body.
Because the fixture of large diameter flange with different diameter is easy to displace to the side of large diameter flange with small diameter in the injection process,the restriction measure of tooth contact clamping is adopted.
When the sealant is solidified during operation,after effect observation,local reinfusion and compression are carried out to prevent stress relaxation,and then the injection hole is sealed.
Haihao Group manufacture high pressure forged flanges more than 30 years,our products contain weld neck flange,slip on flange,socket weld flange,lap joint flange,blind flange,orifice flange,threaded flange,spectacle blind flange etc.If you want to know more about our flange products,please email us:firstname.lastname@example.org