Re: What is flow capacity limiter of SF-110/120 design?
Posted: Wed Sep 16, 2015 9:49 am
My recalcs of the flow ranges changing from red to blue gage oil:
Ranges on graph for 10" H2O w/ red oil.........Blue oil
orifice #1 =.................................. 10 cfm...... 15
orifice #2 =.................................. 18 cfm...... 27
orifice #1 & 2 =............................ 29 cfm...... 43
orifice #1 & 3 =............................ 40 cfm...... 60
orifice #1 & 2 & 3 =...................... 59 cfm...... 88
orifice #1 & 3 & 4 =...................... 84 cfm..... 126
orifice #1 & 2 & 3 & 4 =................ 105 cfm.... 157
orifice #1 & 2 & 3 & 5 =................ 140 cfm.... 210
orifice #1 & 2 & 3 & 4 & 5 =.......... 185 cfm.... 277
Looks like changing to the heavier s.g. fluid will shift many of the ranges down by 1 level to test approximately the same flow ratings. No, it won't be as sensitive, but I think it's worth trying for this effort.
Ranges on graph for 10" H2O w/ red oil.........Blue oil
orifice #1 =.................................. 10 cfm...... 15
orifice #2 =.................................. 18 cfm...... 27
orifice #1 & 2 =............................ 29 cfm...... 43
orifice #1 & 3 =............................ 40 cfm...... 60
orifice #1 & 2 & 3 =...................... 59 cfm...... 88
orifice #1 & 3 & 4 =...................... 84 cfm..... 126
orifice #1 & 2 & 3 & 4 =................ 105 cfm.... 157
orifice #1 & 2 & 3 & 5 =................ 140 cfm.... 210
orifice #1 & 2 & 3 & 4 & 5 =.......... 185 cfm.... 277
Looks like changing to the heavier s.g. fluid will shift many of the ranges down by 1 level to test approximately the same flow ratings. No, it won't be as sensitive, but I think it's worth trying for this effort.