How to transportation of Large Weld Neck Flange?
Large weld neck flanges are flanges that exceed the size specified by the state departments. Generally refers to dN2000 or more size of the flange disk. Such products are all welded products, no silk buckle, silk buckle products are often used in specifications to DN15-DN100. The largest size of the 0.25MPa to 1.6Mpa pressure standard in the national Flange standard GB/T9119-2010 is the DN2000. The largest of the 2.5MPa pressure standards is the DN800. The production of such flanges is to allow the construction party to provide drawings for production. The production process has three kinds of forging and rolling and stitching. Product size is too large can only be made with roll and stitching process. Its manufacturing area is mostly in the Area of Xinman Industrial Zone in Mengcun Hui Autonomous County, Mengcun, Hebei Province.
For ANSI Class 3000 Carbon Steel Weld Neck Flange products with 3 meters or more, attention should be paid to transportation when contracting:
1. The limited height of highway or viaduct is 4.5 meters. The Weld neck flanges itself is 3 meters in diameter, and then the truck itself is about 1.5 meters in height, it will not pass.
2. If transported horizontally, the 3M flange will also exceed the width of the lane, so it is a problem whether transported vertically or horizontally. If the problem of distribution is not solved properly, it will cause some difficulties in transportation.
3. Extra large Weld neck flanges should be completed by staged production process. Then it splices at the construction site.
4. Weld neck flanges Packing in wooden cases or wrapping with braided tapes after applying rust-proof oil depends on the situation.