Merrill MPSM45070 No Lead Pressure Switches - 50 - 70 PSI / 1/4" Female NPT / with Manual Lever - Auto Cut Off

Quality Benefits 

- Captive nut on cover

- Pressure switch pipe connection 1/4" female NPT

- Adjustment instructions are inside the 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

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 the pump and system the switch is to be used with must be a minimum of 12 PSI above the switch shut offsetting. The use of this switch outside of the noted parameters will not be warranted. 

Note: Pressure switches overheated or burned up inside due to rapid cycling will not be warranted. 

Certifications & Warnings