Throttle valve

Throttle valve

A throttle valve is a component of the ventilation system used to control the speed and volume of air flow in shelters and bomb shelters. This device allows you to equalize air resistance and adjust its volume. Valves can be round or rectangular. Throttle valves for bomb shelters are made of thick sheet metal to protect against the blast wave. The stuffing box in the design of the DZ is used to ensure the sealing of the gaps.