Recent content by pch1

Thanks for all the input lads. I used the Spirax Sarco website, and together with a colleague we calculated the expected pressure drop through the piping system.

The system I have described is the blowdown from a boiler.

Yes, the 6" pipe is the steam source. There is only 1 elbow on the 6" source, then a reducer to get to 10".

The 6" pipe is connected directly onto the 10" pipe. There is 1 x 6" elbow, 20 metres of 10" pipe and 1 x 10" elbow Thanks Paul

Can anyone point me in the right direction for the following: I have steam in a 6" pipe at a pressure of 64 barg and a temperature of 400 C with a mass flow rate of 100 tons per hour. The 6" pipe is connected to a 10" pipe by means of a reducer and the 10" pipe is open to atmosphere. What...

Thanks for your input gents, the pipe in question is specialist pipe for abrasive substances (Induction hardened UTS 600). I will use a welded support as per your recommendation; the Carpenter Patterson catalogue doesn't state if the pipe saddle is suitable for axial restraint. I will have to...

Can anyone point me in the right direction: I have a 10" pipe and need to design a support stop to resist an axial load of 45981 N. The pipe saddle I intend using is a Carpenter & Patterson Fig 384-2 which consists of two pipe clamps each 50 mm wide fitted around the pipe. How would I calculate...

Why didn't the person in charge have the correct tools for the job? The gasket doesn't seem to cover much of the raised face area at all, and if you are going to bolt up a flat face to a raised face flange then you need an adaptor as the flat face flange could be of more brittle material than...

I've seen failure of gaskets as indicated in the photographs, BUT it has been caused by fitters assembling tight fitting spools together and sliding the faces of the flanges together to align the bolt holes, instead of pushing the spools apart to correctly fit the flange faces. I have seen...

Thanks very much Vzeos.

BigInch 3/16 is approximately 4.7 mm - can you recall where you got that figure from? I can find an EN standard that indicates the mismatch of a circumference and alignment but doesn't mention anything about mismatch of wall thicknesses.

On a project, for economic reasons, we have pipe which has a thinner wall thickness than standard off the shelf fittings. Before anyone says to match the wall thicknesses (in an ideal world) you may want to consider the vast range of pipe wall thicknesses available in the EN standards. Could...

It looks good, but what happens if a group of kids come along and think it will make a good swing?

Proficiency with the relevant standards i.e. ASME B31.3 - Process piping / ASME B31.4 - Pipeline Transportation Systems for Liquid Hydrocarbons and Other Liquids / ASME B31.8 - Gas Transmission and Distribution Piping Systems. I design piping systems, but would not assume I can design piplines...

What material are you hoping to use? Forbesgroup in the UK are very helpful and will be able to help size GRP / Thermoplastic tanks using BS 4994 / BS EN 12573. http://www.forbesgroup.co.uk/