CDRS25SS2X18 | Ruskin Manufacturing | Actuators & Dampers

4″, 5″, 6″, 7″, 8″, 9″, (10″ to 24″ even)

Round, single-blade, 90° rotation

Length 7″ (17.8 cm)

Diameter 1/2″ (1.3 cm)

Opt. galvanized or stainless steel, 5.5"W x 9.3"L (to shaft center)

(4xD") + 20 in-lb (with seals); (1.5xD") + 20 in-lb (without seals)

4″ to 6″ 10" WC

7″ to 12″ 8" WC

>12″ 6" WC

4000 ft/min (28.5 m/s)

with Seals AMCA Class 1

1.4% to 5.5% of maximum flow

Optional (See ordering)

Galvanized 20-gauge steel

Stainless steel

Riveted double-layer galvanized steel, full blade neoprene seals (standard, others optional)

-50° to 250℉ (-46° to 121℃)

4" through 24" diameter, 7″ frame length

Approximately 1 lb per inch diameter

1 year

The Ruskin CDRS25 Series round damper frames are made of 20-gauge welded, galvanized steel, 7" in length. Blades are double-skin galvanized steel, strength-equivalent to 14-gauge steel but lighter to handle. Shaft extensions are 1/2″ diameter with stainless-steel bearings for long-life damper actuation. Standard neoprene blade edge seals offer superior low-leakage performance. Optional aluminum or stainless-steel construction is available, as well as an actuator mounting bracket.

18 RND SS304-DMPR SILICONE SEALS

Ruskin Manufacturing