Description
The Crandall 2372-502-CSS Pneumatic Hi-Pressure Selector Relay is a control device designed to compare two pneumatic pressure signals and route the higher signal for HVAC pneumatic logic systems. This high-pressure selector pneumodular assists in directing the dominant pressure to downstream components, helping maintain proper control sequence and system performance. Engineered to Crandall quality standards, it delivers stable and repeatable selection of higher input pressures for reliable pneumatic operation. Ideal for HVAC technicians and controls contractors, it supports improved pneumatic signal management and reduces control lag in air handling systems.
Key Features
- Pneumatic hi-pressure selector relay for comparing and routing higher pressure signals
- Designed for use in pneumatic control systems with dual pressure inputs
- Helps maintain accurate pneumatic logic and control signal delivery
- Compact pneumodular design for installation in standard 1/4-inch control lines
- Supports reliable system response and reduces pressure-related control fluctuation






