Stop-nuts prevent the knobs from being totally removed.
Ergonomic and corrosion resistant knobs which do not allow the bolts to protrude (protected design).
Retaining cable with M6 bolt and nut (order separately, art. nr. D01V-2001) preventing the loss of the door.
Duct Wall Thicknesses RRD access doors with silicon gasket: S1 = max. 5 mm For thicker duct wall thickness special access door versions with longer bolts can be ordered.
Top Required Clearance when Installed RRD 18: H ≈ 36 mm RRD 21: H ≈ 40 mm RRD 32: H ≈ 55 mm RRD 43: H ≈ 60 mm RRD 54: H ≈ 70 mm
The steel knobs require the same clearance since the same bolt length is required to operate the access door properly.
Prices
Opening Dimensions
RRD opening dimensions according to the duct-Ø
Installation Instructions
Installation Video
To be taken into consideration when fitting stainless steel parts