DN200 how many screws are there in the weld flange?
We want to know the welding flange of DN200. The 16 kg pressure is 12 screw holes. 10 kg pressure welding flanges are 8 screw holes. Welding flange in the field, all you need is a welding flange pressure of 16 kg, so we just get you 16 kilograms of welded flange welding flange connection, but in your site is not correct, your connection welding flange is 10 kg pressure. It also shows that the connection you purchased is also a 10 kg pressure welded flange. In accordance with the requirements of the pipeline, please change your connections at any time or change the pressure in the pipe.
For welding flange DN200, many customers say the welding flange you DN200, but you and our site is not the same, your welding flange is thicker than the US, and your site we screw holes to. First of all, let us explain to you the customer, the pressure of your piping design is incorrect at first.
DN200 welding flange has 8 and 12 screw holes two kinds.According to JB/T81-59 standard:MPa0.6 below, the outer diameter 315mm plate thickness 22mm Phi 18 hole, 8 hole center Phi 280MPa1,0., the outer diameter 335mm plate thickness 24mm Phi 23 hole, 8 hole center Phi 295MPa1.6, the outer diameter 335mm plate thickness 30mm Phi 23 hole, 12 hole center Phi 295
