Advantages of 37deg flare flange
the form of flaring is not easy to produce leakage:
Due to welding when the welding level difference is bigger, often will produce the phenomenon such as welding seam sealing off with porosity, welding at the same time easy to cause deformation, cause and untight seal leakage between flange and flange, pipeline residual internal stress produced in welding process, the metal lattice distortion, and become a corrosion cell anode, easy to form cracks.Flaring flange is loose sleeve flange, can be 360° rotation, can be arbitrarily aligned with the bolt hole on the equipment, and the inner cone sealing surface and flaring surface actually form a spherical contact, installation allows a certain inclination Angle between the pipe and equipment without affecting the sealing, well solved the leakage problem of the pipeline and equipment connection.
Welding pipeline installation steps: use compressed air to blow out the impurities in the tube, pipe with groove and spot welding, argon arc welding of the reentry after remove the backing welding, pickling, wash, and sodium carbonate solution, water and air dry, whole pipeline assembly, hydraulic oil flushing online, ultrasound or magnetic particle inspection of main pipe must be multiple steps.
Flaring pipeline can be large-scale production in the workshop according to the drawings or actual measurement results, one installation, no need to pickling again, thus greatly shortening the installation period, can shorten the installation time 2/3.
Closed hydraulic systems and hydraulic systems with servo and proportional valves have high requirements on pipeline cleanliness, and welded pipelines are difficult to reach NaS class 7. Flaring weldless lines can easily reach NaS class 5.
Welding system with longer duration of use, the welding slag and scale under the action of alternating load in continuous falls off easily, pollution of hydraulic system, serious when will cause damage of main components, and this is not easy to identify and prevent the accident, many people don't realize is that the main reason comes from hydraulic line, mistaken for problems caused by hydraulic element itself, testing maintenance is difficult.
