The flange of the JB/T4702 type B equipment has the requirement of the thickness of the cylinder joint connected with it, but it can not be rigid for the thickness of the whole cylinder. To this end, the standard specifies the length and length of a section of the tube to which it is attached. This is the short joint.If the design thickness calculated by the cylinder is less than the required thickness of the JB/T4702, a short joint should be used.If the design thickness calculated by the cylinder is greater than or equal to the required thickness of the JB/T4702, there is no need to use the short joint.
1 、 the short pipe between the flange and the equipment or pipe; the distance between the two parts of the 2 flange is not enough. It is used as the part of the middle connection, and the middle flange of both sides is short.
It is a common wind pipe joint at the end, with a flange only
