Description
The Dungs Pressure Switches 221997 Dual Modular Valve with a 2″ NPT flange connection is a gas control assembly used to regulate and control fuel gas flow in commercial HVAC systems and industrial burner applications. This component arrangement works within heating equipment such as rooftop units, boilers, furnaces and process heating systems where controlled gas delivery is required for ignition and burner operation. The modular valve assembly assists with system safety by managing gas shutoff and flow control during operating cycles. Its flanged configuration allows integration into larger gas piping arrangements used in commercial heating equipment.









