The elbow can be molded by threaded connection or welded form. Needed, a circular ring shell can be cut into four 90 â—‹ elbow or 6 600
â—‹ bend of the elbow or other specifications, the process is suitable for manufacturing GB Elbow Drive and elbow inside diameter of more
than 1.5 any large bend of the specifications, is an ideal method for the manufacture of large pressure elbow.
The elbow of the less rigid, the pressure p ≤ 4MPa the occasion; GB elbow rigid, applicable to high temperature in the pressure of the
occasion.polygon gradually become round and eventually become a circular ring shells. There are three type of flange sealing surface: planar
sealing surface, suitable for high pressure, medium nontoxic occasions; bump sealing surface, for slightly higher pressure situations.
Elbow technology is applicable to the manufacture of the working pressure is less than 10MPa, the elbow inside diameter d? 125mm, elbow
diameter D and elbow diameter d ratio D / d? 1.5 elbow bend in the path size limitation . For example, can be processed elbow inner diameter
of 12m, bend diameter is more than 60m GB elbow. GB elbow oil, natural gas, chemical, water, electricity, construction and boiler industry s
pipeline system. The tongue and groove sealing surface, flammable, explosive, toxic medium and high pressure situations. The gasket is a
plastic deformation, and has the ring of a certain strength of materials.
Most of the gasket is cut from the non-metallic plate down, or by a professional factory production of the required size, the material is
asbestos rubber sheet, asbestos sheet, polyethylene sheet; asbestos rubber gasket for steam temperature below 450 ℃, oil temperature below
350 ℃, pressure is lower than 5MPa occasions corrosive media, the most common acid-resistant asbestos board. Also useful for sheet metal
(white metal, stainless steel) wrapped up the asbestos and other non-metallic materials made of metal-clad gaskets; there is a band together
around the system from the thin strip and asbestos spiral wound gasket. Ordinary rubber pads on the occasion of the temperature is below 120
° C.
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