Flange is to make the pipe with pipe connecting parts, connection in the pipe end.Bolt on the flange hole, can wear, use among gasket seal, and then make the two closely connection flange.
We belong to the national standard flange, the flange is interchangeable parts, all kinds of flange holes, center distance, outer diameter, inner diameter, thickness and so on are all standard, common flange standard HG/T 20592-20592, JB/T 81-94, GB/T 9119-2000, and so on.And national standard of the flange to consider the safety factors, so the size and thickness of safety margin is larger.In addition to the national standard flange, there are two standard flange believe you've heard, is the flange diameter and the thickness of the flange are better than national standard of the flange diameter and small thickness of 3 mm.This kind of flange is commonly used in pipeline engineering of pressure is not high, price is low.In addition to the national standard flange with two standard flange, non-standard flange the word you heard?
So-called non-standard flange, it is almost no pressure to above the pipe, so asking how many kilograms of flange also need not able to withstand pressure, there is only one goal: the price is cheap.General non-standard ferrari are five mm outside diameter small size, small 10 mm thick, also have in pursuit of cost minimization, thinner thickness requirements of customers, non-standard applications the most places is the mine drainage facilities.Such facilities without pressure, flange is a basic connection effect.
Non-standard flange price is low, but must not be used in the engineering of pipeline pressure requirements, otherwise easy to cause safety accidents, resulting in loss of persons or property.
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