Answer
Jan 09, 2018 - 05:51 AM
The Shurflo High Flow Revolution Pump does have an automatic shut off. The by-pass is set to begin opening at about 30psi and creating full by-pass at about 65psi.
The pressure switch on the pump is set to shut off at 55psi.
If the switch or by-pass are adjusted too much, the by-pass and switch shut-off can overlap and the pump will not shut off.
Screwing the switch screw in clockwise will raise the shut-off pressure. Unscrewing the switch screw counter clockwise will lower the pump shut-off pressure.
Screwing the by-pass screw in will raise the pressure at which the by-pass starts and raise the full bypass pressure.
Unscrewing the by-pass screw counter clockwise will lower the pressure at which by-pass starts and lower the full by-pass pressure.
WARNING: If full by-pass is reached before the shut-off setting, the pump will not shut off. Full bypass pressure setting should be at least 10 psi higher than pump shut off pressure.
The pressure switch on the pump is set to shut off at 55psi.
If the switch or by-pass are adjusted too much, the by-pass and switch shut-off can overlap and the pump will not shut off.
Screwing the switch screw in clockwise will raise the shut-off pressure. Unscrewing the switch screw counter clockwise will lower the pump shut-off pressure.
Screwing the by-pass screw in will raise the pressure at which the by-pass starts and raise the full bypass pressure.
Unscrewing the by-pass screw counter clockwise will lower the pressure at which by-pass starts and lower the full by-pass pressure.
WARNING: If full by-pass is reached before the shut-off setting, the pump will not shut off. Full bypass pressure setting should be at least 10 psi higher than pump shut off pressure.
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