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EWC Controls offers the 10 RD-HD Volume Control Bypass Hand Damper. This hand damper is made for field adjustments of pressure and velocity in round bypass air duct systems. It is built to meet ACCA Manual Zr guidelines. The unit includes a manual quadrant for precise pressure drop adjustments and has a design that ensures minimal bypass flow.
The RD-HD dampers provide reliable balancing and long-lasting performance without the need for maintenance.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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