Compressor Pressure Regulation Run Control

Summary

• The small tube branching off of the main feed from the compressor into the tank feeds the unloader valve.  This depressurizes the main tube to make it easier for the motor to start.
• The main big fitting feeds the pressure switch actuator.

Design Solution

Furnas 69MB7LY pressure switch with disconnect lever cut in 95 PSI cut out PSI 125

Research Links

• Air pressure switch models and options

Ebay Possibilities

• Google: CW208101AV
• EbaySearch: pressure switch – mostly Chinese
• EbaySearch:furnas pressure switch  – better quality brand
• Ebay:New Pressure Switch valve for Air Compressor replaces furnas 95-125 1port
• Pressure control switch valve for air compressor replaces Furnas Square D
• FURNAS 69MB7LY PRESSURE SWITCH W/ DISCONNECT LEVER CUT IN PSI 95 CUT OUT PSI 125
• 69JF7Y AIR COMPRESSOR PRESSURE SWITCH 95-125PSI Old #69MB7Y FURNAS/HUBBELL NEW
• AIR PRESSURE SWITCH 120 VOLT 95-125 PSI ADJUSTABLE FOUR PORT 1/4'' FURNAS

Example Configuration of Other Compressors