US Draft Co. – Dampers

CDS2 Connecter Draft System

Dampers

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The CDS2 Connector Draft System maintains the required pressure (negative or positive) at the individual appliance connector. Designed with EC-Flow Technology™, the CDS2 takes advantage of the US Draft Co bi- directional pressure transducer and proprietary PID technology to rapidly respond to varying pressures at the appliance on Category I, II, III & IV as well as building heating appliance systems. Utilizing a single blade damper (SB), pressure transducer and the internal controller, the system interlocks with the fossil fuel fired heating appliance to maintain the required outlet pressure of the manufacturer. It also serves to protect the boiler from flue gas recirculation when used in a common vent system.

The original CDS revolutionized how controlling draft is done, now with second-generation CDS2 continues with it’s all-new V-series internal controller with easier access buttons. The CDS2 is effective in all designs; individual or common vent as well as both natural draft and mechanically induced systems. The CDS2 changes how you design your venting system.

OBD Opposed Blade Damper

Dampers

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The OBD Opposed Blade Damper from US Draft Co offers all stainless-steel construction with diameters up to 36” standard (custom sizes available). The OBD is ETL listed for all types of heating appliances including Category I, II, III & IV as well as Building Heating Appliances and gas & solid fuel fireplaces. The OBD features the fastest actuator in draft controls specifically designed by US Draft Co to provide immediate response to system changes. With a continuous temperature rating of up to 1,000˚F (1,400˚F intermittent), the OBD is a great solution for high-temperature AND high-efficiency appliances.

When combined with a V-Series controller, the US Draft Co OverDraft Control System (ODCS) maintains proper draft in the manifold during overdraft conditions.