Vents KRA 500x250 shut-off damper is designed for automatic opening or closing of the channel in the supply ventilation. Most often, such valves are used in ventilation systems where water is used as a coolant for the heater. The damper in such systems serves as an additional element of protection against freezing of the heat exchanger and its failure.
The body and rotary plate of the damper are made of galvanized sheet steel.
Installation
The damper is installed using a flange connection. Installation in the ventilation system is carried out by attaching the end flanges of the dampers to the mating flanges of air ducts or other units of the ventilation system. Fastening is carried out using galvanized bolts and brackets. When installing dampers with a servo drive, it is necessary to leave space for control access to the drive.
Dimensions
| Dimensions | B | B1 | B2 | B3 | H | H1 | H2 | L |
| mm | 500 | 520 | 540 | 603 | 250 | 270 | 290 | 202 |
Diagram
