20X8 ND-HD | 20X8 ND-HD HAND DAMPER | EWC Controls O-Ring_GripLoc™ Compression Coupling 2-1/2 PVC FEMALE ADAPTER SOCXFPT

2-1/2 PVC FEMALE ADAPTER SOCXFPT SCH40 GRAY

1 CPVC TRUE UNION 2000 INDUSTRIAL 3 WAY L/1 HORIZONTAL SPIGOT EPDM

18X3 PVC STUB SADDLE SOCKET SCH80 N

3 PVC GATE VALVE FLANGED EPDM

3 INCH 50 IN

20X8 ND-HD | 20X8 ND-HD HAND DAMPER | EWC Controls O-Ring_GripLoc™ Compression Coupling 2-1/2 PVC FEMALE ADAPTER SOCXFPTACTUATORS ARE INSTALLED ON THE 2ND DIMENSION, PHOTO IS GENERIC AND MAY NOT REPRESENT THE PART BEING ORDERED 20X8 ND HD HAND DAMPER The ND HD Series of rectangular Hand Dampers are designed for field adjustment of Differential Pressure and Volume Control on Rectangular or Square Bypass Air Duct Runs. Pursuant to ACCA Manual Zr, A balancing hand damper should be installed in the bypass duct for setting adequate resistance to bypass flow. The ND HD