MS Dismantling Joint
The MS dismantling joint is made by welding carbon steel flange and Seamless steel pipe or carbon steel plate, it can withstand pressures from PN6 to PN100 which is much more higher than ductile iron dismantling joint, no need moulds.
Specification
Design standard EN545,ISO2531,AWWA C219,AS/NZS2280
Material Q235,Q235B,Q275 etc carbon steel material
Joint type V type
Welding method Automatic submerged arc welding
Test standard ISO17640:2010
Ultrasonic testing, penetration testing, pressure testing are available
How to weld for MS dismantling joint?
Part A
Welding form butt joint
The groove form is double V-shaped groove, flat welding
Welding process Submerged Arc Welding
Welding material J422 size:3.2 4.0 5.0
Multi-layer welding
Welding by manual
Part B
Welding form butt joint
The groove form is Single V-groove, flat welding
Welding process Submerged Arc Welding
Welding material J422 size:3.2 4.0 5.0
single-pass welding
Welding by manual
Part C
Welding form Fillet joint
The groove form is 45° Fillet
Welding process Arc welding
Welding material Gas
80%Ar 、20%CO2
single-pass welding
Welding by Machine
Submerged Arc Welding Process
Prepare
Location
Welding
Finished
Penetration Testing Process for MS Dismantling Joint
1. After the dismantling joint surface is smeared with the penetrating liquid with coloring dye, under the influence of capillarity, after a period of time, the penetrating liquid can penetrate into the surface vacancy.
2.Removing the excess penetrating liquid on the dismantling joint surface, then smearing the imaging agent on the dismantling joint surface. Under the influence of capillarity, the imaging agent attracts the penetrading liquid saved in the surface vacancy, the penetrating liquid will seep back into the imaging agent. The morphology and distribution of defects are detected under a certain light source.
