The Johnson Controls P74BA-1 is a heavy-duty differential pressure control engineered for reliable pressure monitoring and switching in commercial and industrial HVAC systems. Featuring a single-pole, single-throw (SPST) switching action that opens on a decrease in pressure difference, this control provides precise, adjustable pressure management to protect equipment and maintain system performance.
Key Features
- SPST switching action — opens on decrease in pressure difference for reliable system protection
- Wide adjustable range pressure differential: 8 PSI to 70 PSI
- Adjustable switch differential: 8 PSI to 30 PSI for fine-tuned control
- 36″ capillary with 1/4″ flare nut connections for flexible installation
- Stainless steel construction for durability and corrosion resistance
- Designed for commercial and industrial HVAC and refrigeration applications
Specifications
- SKU: P74BA-1
- Brand: Johnson Controls
- Switch Type: SPST (Single-Pole, Single-Throw)
- Switching Action: Opens on Decrease in Pressure Difference
- Adjustable Range Pressure Differential: 8 PSI to 70 PSI
- Adjustable Switch Differential: 8 PSI to 30 PSI
- Capillary Length: 36″
- Connection: 1/4″ Flare Nut
- Wetted Materials: Stainless Steel
Application
The P74BA-1 is ideal for use in commercial refrigeration systems, chiller plants, and HVAC applications where differential pressure monitoring is critical. The broad adjustable range and stainless steel wetted parts make it suitable for a wide variety of fluids and system pressures. The 36″ capillary with 1/4″ flare nut connection simplifies field installation and integration into existing piping.
