Vent Silencers Dealers

Anpam Engineering specializes in designing and manufacturing Steam Vent Silencers for effective noise reduction in steam and gas venting systems. Our silencers are engineered to handle high pressure and temperature, ensuring safe and quiet discharge. Built with durable materials and precision design, they provide efficient noise control, long service life, and reliable performance for power plants, refineries, and process industries.

we offer air vent silencer made from high quality raw material. these air vent silencers are produced in compliance of the rules and codes followed in the industry as per the specifications. our air vent silencer 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.

  vent silencers reduce noise or unwanted sound generated due to high velocity of steam and gas venting to atmosphere at outlet of valve with critical flow conditions. Every silencer is designed on the basis of our customers’ technical specification and required noise level attenuation. standard features   highly engineered inlet diffuser expansion chamber with heavy-gauge perforated sheets and highly absorptive fiberglass acoustic material cylindrical perforated noise absorptive bullets supports for vertical or horizontal orientation lifting lugs and bottom drain all welded heavy-duty steel construction high-heat aluminum paint system typical applications steam boiler relief valves safety relief valves start-up vent valves boiler startup steam exhaust high-pressure air vents natural gas blow-downs compressor blow-offs steam ejectors material of construction   carbon steel, sa-516 gr70, sa-106b, ss304, ss316, sa-387 gr11, 387 gr22, sa-335 p11, sa-335 p22, monel and hastelloy.   optional features   diffuser pipe with flanged or beveled end inlet slider arrangement (slip joint) inlet with expansion bellow joint multiple inlets with up to 6 inlets absorptive material: glass fibre, ceramic or mineral wool manhole or handhole for inspection chair support, saddle support, skirt or leg support outlet pipe extensions diffuser assembly designed as per asme section viii, division i outlet weather hood with head or elbow, sand hood, bird screen, insulation clips, tailing lugs

APPLICATIONS: Vent silencers are used in areas where it is necessary: • To reduce work place noise levels to a desired occupational limit. • To cut the intrusion of industrial noise into residential areas. Vent silencers are used to suppress the noise generated by safety relief valves, process vents, dumping gas to atmosphere during compressor or boiler set-up sequences, de-pressurizing lines for maintenance, ejector discharges and steam exhausts, and the blowdown of pipelines for cleaning purposes. CONSTRUCTIONAL DETAIL: Available Sizes: 15NB TO 100NB, ASA 150# Available in both MS and SS Body construction. Other flange ratings can be provided on request. Limiting Conditions: Max. Op. Pr. = 10 bar. Max Op. Temp. = 1800C Where the standard range does not meet your requirements, special tailor-made designs can be offered. Accessories: Common Header for Multi vent points, Flexible hose with Quick connection arrangement and Cone Strainer screen can be provided additional 

APPLICATIONS: Vent silencers are used in areas where it is necessary: • To reduce work place noise levels to a desired occupational limit. • To cut the intrusion of industrial noise into residential areas. Vent silencers are used to suppress the noise generated by safety relief valves, process vents, dumping gas to atmosphere during compressor or boiler set-up sequences, de-pressurizing lines for maintenance, ejector discharges and steam exhausts, and the blowdown of pipelines for cleaning purposes.   CONSTRUCTIONAL DETAIL: Available Sizes: 15NB TO 100NB, ASA 150# Available in both MS and SS Body construction. Other flange ratings can be provided on request. Limiting Conditions: Max. Op. Pr. = 10 bar. Max Op. Temp. = 1800C Where the standard range does not meet your requirements, special tailor-made designs can be offered. Accessories: Common Header for Multi vent points, Flexible hose with Quick connection arrangement and Cone Strainer screen can be provided additional 

When one is looking to attain noise reduction by the means of a silencer, BCS offers a wide range of vent silencers for pressurized gas for various applications related to acoustic insulation, soundproofing ie., protection of workers against noise, preservation of acoustic environment, limitation of noise emissions in the energy sector. The blowdown of natural gas systems must typically be done quickly in a very short time span during maintenance operations on pipelines. This often produces noise readings well above tolerable levels. Natural gas silencers control blowdown noise through a reactive-absorptive process, which provides good attenuation across all octave frequency bands. The selection and design of natural gas silencers is dependent on the following application specific factors.   Noise attenuation requirements Evaluation of natural gas flow Blowdown time limits Most cost effective approach to meet needs Durability and performance for the given application environment       We offer a powerful solutions at a reasonable cost in response to all the needs in the matter of soundproofing by means of equipment that is either standard or tailor made for which the quality of design and execution meets the highest level of requirement in this area for an efficient fight against noise. The vent silencers for pressurized gas offered by us allows the reduction of noise for process facilities using pressurized fluids like air, oxygen, nitrogen etc., notably for the chemical industry, oil & gas sector, heavy duty industries and also for power plants Gas Vent Silencer Features: Heavy gauge perforated sheet is used. Lifting lugs and saddle are provided with proper calculating load and stress. Heat Resistant Aluminum Paint is applied on the surface area (800°C) based on customer requirement. Quality acoustic fills and Insulation is used. Sandblasting is done on the surface area. We have qualified welders for all types of welding joints for structural work. We have approval from third party inspection for WPS, PQR and WPQ records for all the welding positions like 1G, 2G, 3G, 4G, 6G. We have NDE LEVEL-II inspector for RT, UT, VT, PT, MT. Gas Vent Silencer Optional Features: High Temperature Acoustic fill Material Material Selection Inspection of opening such as Manhole Extra Support lifting Lug, Support Saddles Special Paints Side Nozzle Opening for Multi-inlet process Type of Gas Vent Silencer: Air vent silencer Oxygen gas vent silencer Nitrogen gas vent silencer Blast gas vent silencer CO₂ gas vent silencer Diffuser Pipe: A diffuser is a device that utilizes a part of the Kinetic Energy of the fluid passing through the machine by gradually increasing the cross sectional area or chamber through which it flows, so as to decrease the speed and increase the pressure. Diffuser pipe provides energy dissipation and modification of the noise spectrum for easier attenuation. Stream is entered into the pipe as high speed jets into many small holes of the pipe. The diffuser creates a back pressure on the valve. This leads to the reduction of the pressure drop across the valve which in turn aids in the reduction of the noise generated by the valve and reduces the velocity at downstream of the valve. Increasing pressure drop at the inlet diffuser does not affect the required diameter of the vent silencer. Our Diffuser pipe design is in accordance to the ASME Standard, Sec VIII-Div-1 where the operating pressure is equal to the valve back pressure. The operating pressure is directly proportional to the mass flow through the diffuser. Chamber A Chamber is an expansion unit or section. It is setup where the fluid flow enters the Acoustic Infill absorption area. Shell Shell is designed based on the mass flow rate of the steam. Shell thickness maximum 6 to 8 mm. Shell material used are SA516 GR70, SA36, SA240 TP304 based on design and Customer requirements.

Decimin design, manufacture & supplies world-class vent (ventilation) silencers for reducing noise generated by venting of pressurized gases to the atmosphere. The noise levels can be as high as 170 dB(A) and can be reduced to level as low as 75 dB (A) at 1 meter distance with the vent silencer. The vent (ventilation) silencer applicable gases can be – Air, Steam, Nitrogen, Oxygen and these Vent Silencers (baffle) are installed down stream of safety valve, ejector, reliefstartup valve, snort-valve, blow down tank, boilers etc.

We bring forth high-quality Vent Silencers for the global market. We are associated with the league of #1 Manufacturers, Exporters, and Suppliers of Vent Silencers from Tamil Nadu, India. The design and development of the silencers is done in compliance with the norms. Their quality is tested by us comprehensively. Buyers can place bulk orders for them with us!Details : A vent silencer or a blow off silencer is a device used to reduce unwanted noise created by gas or steam flow in a pipeline discharging directly into the atmosphere. This noise can be generated due to the high velocity flow through the valve and turbulence created around any obstacle in the line that suddenly restricts or changes the direction of flow such as valve or an orifice. Vent silencers find wide applications in high-pressure vents, steam vents, safety relief valve outlets, system blow downs and purge outlets etc. Each vent silencer is designed to attenuate the noise level to the required sound pressure level criteria at a given distance from the silencer. In any steam or gas venting / blow off system, the primary release of noise energy occurs at the open stack exit. The blow off silencer is installed either within the stack or at the stack outlet to intercept this noise before it escapes into the environment. Our vent silencers combine both dissipative and reactive technology in a highly efficient design. Data Required Application (Vent, Blow down, Relief Fluid Composition (Steam, Gas, Air) Molecular Weight or Specific Gravity Process conditions upstream of valve and units (lb/hr, SCFM, ACFM), Temperature Pressure (P 1) Atmospheric pressure ( P a ) and temperature (T 2) if known.

A vent silencer, also known as safety valve & blow down silencer, is basically designed to meet the expanded flow requirements of steam & other high pressure gas venting systems. Vent silencers find wide applications in high pressure vents, steam vents, safety relief valve outlets, steam blow downs & purge outlets, etc   Features Fibre glass cloth protected infill Replaceable infill on many units Available for high temperature applications Rain Caps available if required Other treatments, including hot dip galvanizing, are available on request  

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