Tip sizes
- Thread starter mbryan
- Start date
Russ Johnson
Equipment Expert
With 4 gpm:
#4 = 4,000 psi
#6 = 2,000 psi
#8 = 1,000 psi
#4 = 4,000 psi
#6 = 2,000 psi
#8 = 1,000 psi
Russ Johnson
Equipment Expert
How many licks does it take to get to the center of a Tootsie Pop?
Y'know, I honestly don't know. I would guess between 300 - 400 psi. Might have to research further and get back to you.
Y'know, I honestly don't know. I would guess between 300 - 400 psi. Might have to research further and get back to you.
oneness
Member
Russ Johnson said:
I know that on my 5.6gpm machine, a size 20 or larger will draw chem.
Here's another question for you though...does a downstream injector's rate depend on the pressure, or is it either full on or full off? Would I draw less chem with, say, a size 20 tip than a size 40 tip? It seems that way, but I haven't had to use the smaller tip much, so I haven't had a lot of chance to check it out for sure.
Russ Johnson
Equipment Expert
There would be a very fine point where pressure makes a difference. Imagine, if you will, the exact pressure where the ball lifts off the oring seat. The ball would flutter slightly and partially block the flow. But, at that specific pressure, the ball lifts completely off the seat so there is as much space between the ball and the oring as there is between the ball and the wall of the injector. After that point gpm is the only deciding factor on injector vacuum, allowing you to use the knob to regulate the flow into it.
Russ Johnson
Equipment Expert
More gpm = more chemical useage at the same ratio.
1:10 soap to water at 4 gpm uses 51.2 oz / min., 5 gpm uses 64 oz / min.
1:10 soap to water at 4 gpm uses 51.2 oz / min., 5 gpm uses 64 oz / min.
Russ Johnson
Equipment Expert
Yeah, good luck with that thing....tell Donnie he needs to throw in a new injector on the deal.
Don Phelps
New member
Russ Johnson said:
I'm throwing in lunch and some class.
Good Luck Mr. Johnson
