[tonetegeatinst]

I have a question for folks who handle pumps regularly. Almost all pumps are made for water, or sewage. How do you identify if a pump is rated to handle liquid metal or hot fluids (heated chemicals, or contents under extreme pressure)

I have never heard of a standard class of pumps for this....other than basically finding a manufacturer who specialized in these sort of pumps.

[estimator7292]

Those are pretty extreme applications that require extremely specific pumps. You are very firmly in the "call for pricing" territory

[mindcrime]

That's a bit outside my wheelhouse, but in regards to firefighting specifically there is another such distinction that comes up, and that is in regards to pumps that are designed to regularly pump seawater, versus pumps that primarily pump freshwater. The difference is mainly in the materials used for building the pump, and relate to the corrosive effects of seawater. You can pump seawater with a "normal" fire pump, but if you do it's imperative to flush the pump (and other hose and appliances) thoroughly with freshwater as soon as possible to avoid damage. The seawater rated pumps, on the other hand, can handle seawater all the time. As you can probably guess, the primary application of seawater rated pumps is for fireboats or onboard firefighting on other sorts of ships.

[korse]

You're thinking of temperature and viscosity parameters.

Read the data sheets and look for those terms, or look for manufacturers of pumps that maximize both.