Pipe Fittings's Technical Requirements

pipe fittings have the following technical requirements

geometry, including diameter pipe fittings, diameter, wall thickness. Also asked the radius of curvature. Radius of pipe fittings such as the length of 1.5D, then the radius of curvature required to be within the tolerance range. Most of these pipe fittings for welding, in order to improve the welding quality, end all car into a groove, leaving a certain angle, with a certain edge, this one has more stringent requirements, edge thick, the number and angle of deviation range are provided, geometry pipe fittings more than a lot of items. Surface quality and mechanical properties of the basic and tubes are the same. To facilitate welding, and is connected to the steel pipe is the same. Fourth, that all the pipe fittings to go through the surface, the inner and outer surface of the oxide scale spraying out through the shot peening treatment, then coated with anticorrosive paint. This is for export, Furthermore, also for the convenience of transportation in the country to prevent rust oxidation, have done work in this area. Fifth, that the requirements on the packaging for the small pipe fittings, such as export, we need to do wooden box, about 1 cubic meter, provided that the number of boxes around the elbow can not be more than one ton, the standard allows suits, that is great sets of small, but generally not the total weight of more than 1 ton. For large should a single package, like the 24 "must be a single package. The other is the pipe fittings package marking, labeling is to indicate the size, steel grade, batch number, manufacturer trademarks. Yaoda on the pipe fittings on the stamp, along with a packing list and warranty and other documents.

by: hookah

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