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How To Calculate Pipe Flanges Weight ?
Date:2021-04-05      View(s):554      Tag:How To Calculate Pipe Flanges Weight ?

Pipe flanges are used to connect pipe sections to other pipe sections, inline components, and equipment. Welding neck flange has reasonable structure and a higher strength and stiffness. It is suitable for the pressure temperature fluctuation range large or high temperature, high pressure and low temperature pipeline. There are a number of important factors should consider when choosing pipe flanges for buyers. When tackling shipping jobs, knowing the flanges weight is essential.


 plate flange weight.jpg

Outside diameter: A1

Inside diameter: B1

Sheet thickness: C

Number of drill holes:  D1

Drill hole diameter:  C1

 weld neck flange weight.jpg

Hub diameter at the beginning of chamfer of welding neck flanges: A

Root diameter of the hub: X

Number of bolts: n

The overall length through hub: H


1. Weight Chart of Pope Flanges to ASME B 16.5 Weight is in KG. The weight of flange with a flat face back end of flange


2. Take the weld neck pipe flanges with raised face, which is the most widely used pipe flange facing for example. The weight of raised flange is divided into 2 parts. One part can be treated as a short length of pipe,The other can be treated as a truncated cone deducted by a cylinder. The total weight add up to the weight of a weld neck flange.

Formula 1: W =[(A1*A1-B1*B1-D1*C1*C1)*C+(X*X-A*A)*H]*6.228/1000000

Formular 2: W=[(A1*A1-B1*B1-D1*C1*C1)*C-(A1*A1-X*X-D1*C1*C1)*H]*6.228/1000000

3.The materials used to construct a pipe flanges directly relate to the weight and the pressure it can handle. As illustrated in above drawing, Take the 304 SS flanges weight for example:

Pipe flanges volume=π/4*A1*A1-B1*B1-D1*C1*C1)*C(mm)

304 density=7.93/1000000 Kg/cm^3


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