As a versatile pneumatic relay

maintaining the same physical dimensions and seat alignment

Standard 24V Logic: Integrates seamlessly with existing 24V HVAC controls and standard transformer outputs

this coupler provides the exact tolerances required to maintain system hydraulic efficiency and quiet operation in residential or light commercial boiler loops

allowing for quick adjustments or system testing

Functional Devices RIBM013PN Relay 340155-7026 As a versatile pneumatic relayThe Functional Devices RIBM013PN is a heavy duty 3PDT track mount relay engineered for high current switching in demanding HVACR and industrial automation environments. This enclosed power relay features a 120 Vac coil and is rated for 30 Amp resistive loads, making it a reliable solution for controlling multi phase motors, large electric heaters, or high density lighting circuits. The triple pole double throw configuration allows for complex circuit