Manage the flow in your HVAC systems with pneumatic controls. These devices use air as a control medium to stop or change flow. Dependable pneumatic damper actuators provide proportional control of dampers in either independent or sequence operations. Pneumatic thermostats control pneumatic valves and damper actuators in heating and cooling applications. Sensing probes help determine air pressure in your HVAC system. Pneumatic controls are available in a variety of sizes and configurations to suit your needs. Choose from our selection of pneumatic HVAC controls and accessories, including actuator mounting kits, adapter bonnets, ring pack packing kits, thread adapters and more.