I have a hard time reconciling that the webpage and the nameplate.
The webpage says 40C max ambient temperature AND 40C max fluid temperature.
The nameplate says 85C. It's right after all the other fluid parameters, logical to assume it's a fluid parameter. I don't buy that it would be associated with the motor. Motor ambient temperature limit is likely 40C max. Motor temperature rating is typically given with a letter. And even if you go with the lowest grade temperature anyone has made in a long time (B) the temperature rating is a lot more than 85C (it's 130C).
So what explains the difference?
[ul]
[li]It might be this was a special order pump.[/li]
[li]It might be QB60 is a somewhat generic number that describes some but not all aspects of the pump (can encompass more than one model of pump) in a similar way that a motor frame 365TS tells us something about the motor but not all (there can be many models).
Here is a QB60 with a different supplier name on the nameplate that looks to have slightly different nameplate parameters than the Hurricane QB60 posted above. And
here are a bunch more QB60s. I'm pretty sure I saw one description talking about aluminum casing and another one talking about steel. I really don't know what kind of number QB60 is (uniquely tied to one manufacturer and model?) maybe someone else knows. [/li]
[/ul]
It's possible the supplier listed on the nameplate (an italian company) is still reachable to clarify the temperature rating, or maybe not (and who knows if you can communicate with them).
I don't know the true answer, but from what little I know about this, I personally would tend to trust the nameplate more than the links. In other words it seems to me more likely that we're somehow mistaken in linking these website descriptions to this particular pump and less likely that the supplier who put the nameplate on the pump made a mistake.
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(2B)+(2B)' ?
