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Leaking Down a Barrel Valve - Using Our Leakdown Tester
How to use Alkydigger's Leakdown Tester to set your Barrel Valve.
Hook the outlet hose to your inlet fitting on your barrel valve.
Cap off any Brass check valves.
Put air hose with at least 100 psi on to the leakdown tester.
Adjust the left gauge to exactly 100 psi. . This has to be on 100 lbs during the test and settings
Read the right gauge for what you want the percent Leakdown to be.. You are measuring % of air passage on the right gauge, but using the left gauge to use exactly 100 lbs of air pressure
Make adjustments to the connector rod between the butterflies and barrel until you achieve the desired leakdown %.
Open and close several times €“ making sure that your left gauge did not wander off of 100 psi.
If it did, then re adjust the leakdown percent until it is what you are trying to achieve.
Richer ( more leakdown) slows the idle and €” Leaner ( less leakdown) speeds up the idle.
Hook the outlet hose to your inlet fitting on your barrel valve.
Cap off any Brass check valves.
Put air hose with at least 100 psi on to the leakdown tester.
Adjust the left gauge to exactly 100 psi. . This has to be on 100 lbs during the test and settings
Read the right gauge for what you want the percent Leakdown to be.. You are measuring % of air passage on the right gauge, but using the left gauge to use exactly 100 lbs of air pressure
Make adjustments to the connector rod between the butterflies and barrel until you achieve the desired leakdown %.
Open and close several times €“ making sure that your left gauge did not wander off of 100 psi.
If it did, then re adjust the leakdown percent until it is what you are trying to achieve.
Richer ( more leakdown) slows the idle and €” Leaner ( less leakdown) speeds up the idle.
Call Alkydigger for suggested percentages for various combinations.
You can also use the gauge to check your check valves to see what pressure they are . Screw a valve onto the hose that would otherwise go to the barrel valve . Then begin using the left gauge by turning the pressure regulator slowly until the check valve begins to hiss - This will be considered the cracking point , which is the valve pressure .