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Hi, I'm looking for a supplier for a DN500 globe stop valve, ANSI 600, for use on steam. Can anyone suggest a supplier that they have good experience of? Keef

Hi, I have been asked about the need for dielectric unions in steam and condensate systems when using a combination of steel pipes and SG iron and bronze valves. Can anyone give me advice on whether they are needed? Just so you know, the job involves hot water generation in hospitals. Keef

I have been asked to select a steam trap for installation after a desuperheater. I have been led to believe that it is usual to install a collecting pocket with a trap in such circumstances. I believe the desuperheater will be a spray type. What load do you base the sizing of the trap on? The...

Can anyone tell me if there are any ANSI/DIN standards relating to the design of liquid drain traps, in particular, for use on compressed air systems?

I have been asked for help regarding the requirements for pressure testing new steam pipe installations. This is not my field of expertise and it is not my intention to start advising on a subject I know little about. But can someone point me in the direction of a standard that I can refer them...

Can anyone point me in the direction of some information regarding the use of superheated steam in heat exchangers. I know that it reduces the heat transfer rate as the bulk of the heat transfer is obtained by the change of phase, which only occurs after the steam has lost its superheat. I do...

Can anyone recommend a software package for sizing valves, pipes, heat exchangers etc. for water for heating and cooling applications. Keef

I am trying to calculate the heating load for hot water in a hotel. From various guides, I have been able to find out that is is usual to allow between 25 and 30 gallon/day per person. I am looking at sizing a plate heat exchanger but the only information I can find in the guides refers to...

Can anyone tell me whether it is permitted to use a safety valve changeover valve on a steam accumulator, which is basically an unfired pressure vessel. Obviously, the safety valves will be used to discharge steam.

I am looking for a definitive answer to how many safety valves are require on a saturated steam shell boiler. I am aware of two standards that mention the required quantity - BS2790:1992 (which states only 1) and BS6759: Part 1:1984 (which says that boilers with an evaporation rate of more than...