Power Supply Consolidation

I'm looking to run 3 of the same type of syringe pumps from one power supply in order to reduce the overall amount of space taken up by my apparatus.

Each pump requires between +12 to +30 VDC, ~1.5A.
The power connectors are friction lock 2-pin headers, with .1 centers
The power supplies that come with the pumps from the manufacturer are either 18 or 20 W, I couldn't find which was correct.
The link to the pumps:
http://www.harvardapparatus.com/hapdfs/HAI_DOCCAT_3/PY2_A_38.pdf

So far, I've been unable to find an open OEM power source with 3 equally rated outputs. Do these power sources exist without having to order a custom one? I need a power supply with a universal input.

Any help would be greatly appreciated. I'm a mechanical engineering trying to fill the role of an electrical engineer and it's not going well (as you might imagine).

Is there any reason why you need 3 separate outputs? One appropriately specified 12V power supply with a wiring harness should work if there aren't other limiting factors.

30V is sort of an odd voltage, would the pumps work on a lower voltage say 28V, which is sort of common.

On the other hand if you buy a PS with a terminal block then you are OK, also you could add a dongle to an existing 100W 30V power supply, not actually altering it, no safety issues. The dongle obviously has three connectors on it.

There is also the issue if one pump fails the others may not work, something to consider.

Onthe issue of one pump taking down the other pump in the senario of using one power supply to run all three: put a fuse, or circuit breaker, on each line. That way, one pump is less likely to take the others down. It also might be wise to isolate the supply lines with rectifiers. Bypass capacitors on each supply line (after the rectifier) might not be a bad idea, either, to make each supply line more transient resistant, and to dimish transfer of transients to the other pumps.

No, none at all. I'm incredibly unfamiliar with these concepts. So if the power sources that would be supplied for the pumps are 18 watts, I can substitute a 60 W power source with a 24VDC, 5A output and simply parallel the syringe pumps?

Well the voltage listed for the pump (+12 to +30 VDC) was just given as a range in the users manual, I'm assuming (please correct me if I'm wrong) that it would only potentially require 30 if run at full load.