I'd like to find out about these, Couldnt you order parts straight from the manf.? If it didnt freeze, and you can run them dry, it would be great for the guys in the northern area with the cold winters. Wonder what the highest GPM they make?
4.2 gpm. Itworks off of a wobble plate design that rolls around and moves the pistons. You can run udors dry and nothing is 100% freeze proof. They may be great. The wobble plate has been around a long time.
William is right nothing is freeze proof unless it has its own built in heater. Most of those are homeowner pumps.
Udor pumps are great and Legacy has a pump like the TS2021 that they ran dry for 24 hours and had no signs of wear and comes standard with hot packings. I would look at those first.
We used a pump similar in construction at my other job back in the day. You definitely couldn't run those dry and could not take the abuse that I have seen Udors take at much higher pressures.