Merrill Pressure Switch, 30 to 50 psi Control Range, 2 psi Differential Pressure Range, 14 in FNPT, Domestic
Features Captive nut on cover
Pressure switch pipe connection 14 in female NPT
Adjustment instructions are inside top cover
Contact points open on cut-out pressure - switch off
Points close on cut-in or pressure drop - switch on
Each turn of the adjustment screw 2 psi
No lead
NOTE: factory set pressure range settings are +- 8 psi, a mechanical pressure switch factory set, can not be more accurate and field adjustments may be needed (This is not a defect)
The maximum operating, pressure of pump and system the switch is to be used with, must be a minimum of 12 psi above the switch shut off setting, or more, use of this switch outside of the noted parameters will not be warrantied, pressure switches overheated or burned up inside, due to rapid cycling will not be warrantied
