Start-Up Vent Silencer

We are offering Start-up Vent Silencer made from high quality raw material. These Start-up Vent Silencers are produced in compliance of the rules and lodes followed in the industry as per the specification. Our vent silencers are used to control the harmful and environmentally unacceptable high frequency noise while venting the highly pressurized air, nitrogen, natural gas and other hydrocarbon gases into the atmosphere during the production process in industries.

Procedure for sizing Vent Silencers :
ANPAM ENGINEERING’s Acoustics silencers , can size any gas or steam vent application when provided the following data.
□   Vent media (Steam or type of gas)
□    Mass flow (Preferably in pounds per hour or kg per hour)
□    Temperature and pressure of upstream of the control or relief valve
□    Line connection to the vent silencer

The steam or gas is vent out to the atmosphere through the startup vent valve, during startup  of boiler. This noise produced due to the pressure variation can be effectively reduced through  Startup Vent Silencers. Design of Startup Vent Silencer is very similar to that of Safety Valve Silencer. The inlet pressure of the gas-stream is reduced to atmospheric pressure using a diffuser without reducing the exhaust flow rate.

Product Description :
Residual media steam or gas is let out to the atmosphere through the Start-up Vent valve, during startup or shutdown of a system. This noise produced due to the pressure gradient can be effectively reduced through ANPAM ENGINEERING’s Startup Vent Silencers. Design of Startup Vent Silencer is very similar to that of Safety Valve Silencer. The inlet pressure of the gas-stream is reduced to atmospheric pressure using a diffuser without reducing the exhaust flow rate and causing pressure build-up at the relief valve. The number and size of the diffuser sections depend upon the inlet pressure of the medium and the acoustic requirements. The pressure drop across the diffuser is selected based on the flow conditions of the media to offer a cost-effective silencer design. After the pressure is reduced, the medium is sent through a muffler for better noise performance. Design of our diffuser assembly is in compliance with ASME section 8, division 1 standards. Depending on the size of the diffuser and the silencer muffler upto 70dB of noise can be reduced. Typical applications for Start-up Vent Silencer include boiler blow down lines, air compressor vents and gas plant vents.