German KSB KSB ACTAIR ECO8 F05+F07 DD14 Pneumatic Butterfly Valve is particularly suitable for regulating working conditions or corrosion-resistant applications. In heavy-duty working conditions in industries such as food and beverage, pharmaceuticals, paper and pulp, metallurgical mining, oil and gas, and power, PTFE lining is suitable for mildly corrosive conditions, while rubber lining is suitable for mildly abrasive conditions.

Features of German KSB KSB ACTAIR ECO8 F05+F07 DD14 Pneumatic Butterfly Valve:
The integrated thin-structure disc and stem provide minimal flow resistance to the fluid, resulting in a high Cv value, low pressure loss, and excellent regulating performance.
The smooth, polished disc edge ensures overall concentric sealing when the valve is closed, resulting in low torque, extended seat life, and tight shut-off functionality.
The elastomeric seat serves three functions. First, it completely isolates the valve body and stem from the pipeline medium. Second, it maintains bubble-tight sealing under full rated pressure. Third, it provides active flange sealing, eliminating the need for flange gaskets.
Heavy-duty design with corrosion-resistant top bushings supports the upper stem, absorbs lateral loads from the actuator, and extends valve service life.
Bidirectional sealing with self-adjusting double V-ring stem seals prevents external contaminants from entering the valve body.
Split-body design ensures easy replacement of the seat and disc/stem on-site and allows direct installation of Keystone actuators without couplings or mounting brackets.