Brass versus Bronze as an Alloy for High chlorine service

[ARUNABH BERA]

Dear Sirs

In our Project, fire water valves and hydrants are generally specified as SS-316 because of their high ability to resist pitting resistance in Chlorine environment. However the client is insisting to use either Brass or Bronze as MOC for all Valves internals. Kindly guide me which is more superior Brass or Bronze in terms of its resistance to SCC, weldability and other issues

Supporting references for the above would be helpful

Regards

Arunabh

Project Co-ordinator

Engineers India Limited

[Mahek Shah]

Hi Arunabh,

As per the fire norms NFPA-13, 4 way and hydrant valves are brass MOC. Brass valves are acceptable. 

Regards,

Mahek shah

Assist. Manager QA/QC

Larsen & Toubro Ltd

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