Of course, you may decide that a positive displacement pump is a bit of overkill for water where you would more usually use a cheaper centrifugal pump (or since it is drawn from the potable mains water supply to the canteen, rely on the mains pressure - but I assume there is some reason to believe mains pressure inadequate for the purpose and which is why you want a pump).
If you need a PD pump in future then you might wish you had this available.
Also, if the water pipework was originally set up anticipating a centrifugal pump or to operate on mains pressure (e.g. 80pisg?)then it may not be suitable for a PD pump, especially one capable of 150bar.
For example, if someone closes a valve on a PD pump it may cause some serious problems or damage.
It should have either an internal or external pressure relief valve to protect the pipework and fitting and if it has, the settings may need to be adjusted.
If it doesn't you might want to think about adding some protection.
That the pump is capable of 150Bar suggests this would be a very sensible precaution.
A fast closing valve could generate water hammer at up to 4 times line pressure - that could be quite a bit to manage in a pipeline designed for low pressure potable water supply.
JMW