Johnson Controls P74FA-5C P74 Series Differential Pressure Control, Single-Pole, Double-Throw, 8 to 60 Adjustable psi Differential Pressure Range, 1/4" External Flare

Series p74 measures the pressure difference between two sources: supply lines and return lines. A change in differential pressure will reposition the switching mechanism to cause corrective action of the supplementary control equipment. made in United States. Manufactured by Johnson Controls.

• Field-Proven Penn Switch With A Completely Enclosed Contact Mechanism
• Pressure differential setting is easily changed without removing the cover
• Differential pressure sensing on chillers or water-cooled condensers
• Lube oil failure cutout for refrigeration compressors (same as the P28, but does not incorporate time delay)
• Positioning M100 series motor-actuated valves (P74JA-2)