What compressor series is this valve compatible with

Use a manometer to verify the inducer is pulling at or above the rated WC set points

Which humidifier models use the B4481

Key Benefits for Technicians Precise

Maxitrol KVOP-4 Vent Dampener 322056-301 What compressor series is thisIf you are dealing with a surging regulator on a high flow setup, the Maxitrol KVOP 4 Vent Dampener is the specific field fix required for the 325 7A, 325 7AL, 325 9, and 325 9L series line pressure regulators. As a veteran HVAC technician knows, heavy duty regulators can experience hunting or oscillation during rapid load changes; this venting accessory acts as a pneumatic snubber to stabilize the diaphragm response without sacrificing lock up