When designing a pipe run the question is how much fluid can be pushed through a pipe at a given rate? The answer is subject to many variables, however one of the key criteria is the pressure at which the liquid is pumped.

If a high pressure is used then a higher flow rate for a given pipe size can be achieved, and smaller pipes mean less cost in materials and installation. However a pipe is only as strong as its weakest point and this is at the joints.

In continuous pipe runs, joint are usually achieved by welding. Welded joints have their own problems, but they are cost effective and produce a continuous pipe run.

However at some point it will be necessary to include a fitting such as a valve or a pump into a pipeline. Valves and pumps require maintenance and at some time will have to be taken out of line to be replaced. If they were welded into position then this would be a very difficult and time consuming process, as the joint would have to be physically cut and re-welded afterwards. This is where a flange is used.

A pipe flange is a way of terminating a pipe run with a flat face. The pump or valve will also be provided with a flange. These two flanges can then be bolted together with a gasket between to make a joint which can be easily dismantled.

We at Chemipetro produce a wide selection of pipe flanges to suit varying pressures and configurations of pipework making life easier for the pipeline designer.