RRD + KF

RRD with KF

Duct wall
Press formed covers (original METU-Design available in galv. and stainless steel V2A + V4A, alu.).
Ceramic Fibers Gasket KF.
Sealing ring (KF).
Mushroom head bolts.
Steel springs.
Stop-nuts prevent the knobs from being totally removed.
Metal knobs.
Retaining cable with M6 bolt and nut (order separately, art. nr. D01V-2001) preventing the loss of the door.

Duct Wall Thicknesses
RD access doors with ceramic fibers KF : 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

Steel knobs made of
galvanized steel or stainless steel V2A

KF Gasket:
Binders and adhesives tend to crumble when exposed to temperatures above 200°C. Should that be the case the gaskets must be replaced after each opening of the access door.