Such silencers are installed on the flow path to control the noise created by flow turbulence. For example, extreme pressure drops after regulators in urban gas pressure reduction stations cause severe turbulences and produce a lot of noise. This product reduces flow turbulence and eliminates upstream noise to reduce the noise produced along the pipe. This silencer is designed using specialized software and some of its components are tested in a lab environment. It was installed in the gas pressure reduction station and reduced noise levels by 15 to 21 dB.