If you read the header on my post, I wrote "No offense intended." Don't get so defensive.

1. The trans cooler post was made before I read your reply.

2. The pump you picked is way over kill for the application. When you pick too high of pressure or flow, there are erosion issues as well as shortened life; not to mention the waste of dollars. Evap cooler pumps can be bought at any HVAC supply house, including Grainger's. As I mentioned, Grainger's is the most expensive parts house out there. They charge 2 to 3 times what my preferred supply houses charge for identical parts; again, no offense to you, just a warning to others to not over pay. Evap cooler pumps last for years unless they are abused. Unlike your pump, they will not get damaged if flow is interrupted; even if for hours at a time.

3. The 50 PSI rating is MAX for the torch. Less is better. Flow is important. Proper flow at the lowest possible pressure always equals the longest possible life for all components in the system. The evap cooler pump will achieve the required GPM or LPM with much less pressure than the pumps listed thus far. The evap cooler pump pushes that volume through 3/8 plastic tubes in thousands of units here in Az alone. So pushing it through a 1/4 or 3/8 torch line will be no problem.

4. Did you know that too much flow actually hurts (decreases) heat transfer in a liquid medium cooler? It is a well known fact among road racers. Running no t-stat will cause over-heating issues, so we (racers) would replace the t-stat with a washer. The engines ran cooler with a slight restriction in the water's path.