Use SW6 to determine which type of flange should be used for the equipment

Thread Content

There is a hot water network heater with a diameter of DN1300. The design pressure for the tube side is 2.0 MPa, and the design temperature is 200°C; the design pressure for the shell side is 1.2 MPa, with a design temperature of 300°C. It is required that the tube box and tube sheet be connected using flanges. According to NB/T47022, type B flat welding flanges are not available in the 2.5 MPa DN1300 size, and it is not desired to use the long-diameter butt welding flanges specified in NB/T47023. It is planned to use the shape of the 2.5 MPa DN1300 flanges from NB/T47023, but with a structure similar to that of type B flanges. So the question arises: when entering the data in SW6, which type of flange should be selected? ②How should the weld height h, the effective thickness g1 of the larger end of the neck portion, the effective thickness g0 of the smaller end of the neck portion, and the shear plane height h1 be calculated in the flange structure data?