EWC Controls ND-RSD-8X30 Damper Freon this specific model is a

this specific model is a pneumatic regulator designed exclusively for compressed air and non-corrosive gases

maintaining the integrity of the V46 pressure-actuated water-regulating valve is essential for preventing excessive water consumption and ensuring stable system head pressure

5 Cv flow factor

allowing for seamless field modification from natural gas without sourcing secondary springs

this adjustable air pressure switch is a standard choice for technicians requiring a durable limit control switch for fan proving

EWC Controls ND-RSD-8X30 Damper Freon this specific model is aAs a direct replacement for the legacy ZoneFirst ZDB 8X30, the EWC Controls ND RSD 8X30 is a professional grade motorized rectangular zone damper engineered for high static residential and light commercial HVAC systems. This 8" High x 30" Wide parallel blade unit features a 24Vac synchronous motor mounted on the 30" dimension to ensure high torque and reliable operation. Designed for power open, spring return closed applications, it provides a fail