Crandall Stats & Sensors 2390-501-CSS Switch R-407A Corrosion-Resistant Housing: High-grade stainless steel

Corrosion-Resistant Housing: High-grade stainless steel construction ensures compatibility with potable water systems and prevents rust

the unit is designed to return to the "0" position

a high-pressure rated control must be used

this component offers a direct-fit solution that meets exact manufacturer specifications for thermal cutoff performance and long-term durability in high-cycle environments

this dual-output pneumatic controller minimizes downtime during routine system balancing and maintenance cycles

Crandall Stats & Sensors 2390-501-CSS Switch R-407A Corrosion-Resistant Housing: High-grade stainless steelThe Crandall Stats & Sensors 2390 501 CSS is a pneumatic gradual switch designed for 100% manual adjustment of air pressure within HVAC pneumatic systems. This unit provides precise control over a 0 to 20 psig range, allowing technicians to manually select and maintain specific pressure settings for pneumatic actuators, position controlled devices, or remote set point adjusters. As a 2390 501 CSS replacement for YMC 1001, it serves as a direct drop in