The Functional Devices RIBT24B is a reliable 20 Amp enclosed relay engineered for demanding HVAC and building automation control circuits

Engineered with a solid core consisting of 80% 3Å molecular sieve and 20% activated alumina

Key Benefits Precise Signal Transmission: Ensures the pressure switch accurately detects the vacuum or pressure required to engage the burner

Corrosion Resistance: Features a stainless steel power element to prevent diaphragm fatigue and environmental degradation

The standard sample line connectors are designed to accept 3/16" I

Siemens Combustion VGD20.403U Valve 320788-704 The Functional Devices RIBT24B isThe Siemens VGD20. 403U is a high performance 1 1 2" NPT double gas valve designed for integration with SKP series primary actuators. Engineered for commercial and industrial combustion system safety, this double block gas valve body features a high flow design to minimize pressure drop while maintaining a compact footprint. It is suitable for natural gas, propane, and air applications, providing a reliable shut off mechanism when paired with electro