Targeted attenuation
Silencer length and infill selected for the fan noise spectrum and the boundary noise limit.
VENTILATION & HVAC
Silencer Series
Silencers and static pressure boxes for noise control in HVAC, industrial and metro ventilation systems.
Ventilation & HVAC
Silencer Series
This series attenuates fan and airflow noise across ventilation projects: duct silencers for commercial HVAC systems, heavy-duty subway silencers for metro ventilation handling very large airflows, and static pressure boxes that stabilize airflow while reducing connection noise. Custom lengths and acoustic linings meet project noise criteria with controlled pressure drop.
HVAC duct silencers
subway / metro silencers
static pressure boxes
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Key Features
Balanced distribution
Static pressure boxes even out airflow across multiple terminals for stable, quiet delivery.
Heavy-duty options
High-efficiency silencers for metro, tunnel and industrial ventilation systems.
Description
This series attenuates fan and airflow noise across ventilation projects: duct silencers for commercial HVAC systems, heavy-duty subway silencers for metro ventilation handling very large airflows, and static pressure boxes that stabilize airflow while reducing connection noise. Custom lengths and acoustic linings meet project noise criteria with controlled pressure drop.
This series attenuates fan and airflow noise across ventilation projects: duct silencers for commercial HVAC systems, heavy-duty subway silencers for metro ventilation handling very large airflows, and static pressure boxes that stabilize airflow while reducing connection noise. Custom lengths and acoustic linings meet project noise criteria with controlled pressure drop.
Product Details
- Product range: HVAC duct silencers, subway / metro silencers, static pressure boxes (plenum boxes)
- Broad-band insertion loss including low frequency control
- Non-combustible acoustic fill with erosion-resistant facing
- Low pressure drop designs protect fan energy efficiency
- Custom sizes, connections and acoustic linings per project
Product Advantages
- Proven noise control from offices to metro tunnels
- Low pressure drop maintains system energy efficiency
- Durable construction withstands high-velocity piston-effect airflow
- Full customization meets exact project noise criteria
Send the operating conditions, drawings or a bill of quantities to the JINLONGSEN team. You will receive model selections, a structured quotation and a delivery plan for this series.
Parameters
Product seriesSilencer Series
Product rangeHVAC duct silencers, subway / metro silencers, static pressure boxes (plenum boxes)
Material optionsGalvanized steel; stainless steel and other materials for corrosive, hygienic or high-temperature duty.
CertificationProduced under ISO9001 / ISO14001 management systems; CE where required; CCC certification for fire smoke-exhaust products.
CustomizationOEM / ODM and buyer-label production; made-to-drawing dimensions, materials and performance targets.
DocumentationSelection data, drawings and full export documentation supplied with the order.
FAQ
Questions buyers usually ask.
How do I specify a duct silencer?+
Provide the duct size, airflow, the fan sound power level and the target noise limit at the boundary.
What is a static pressure box for?+
It stabilizes pressure and evens airflow across terminals, reducing noise and improving balance at diffusers.
Do you supply silencers for metro and tunnel projects?+
Yes. High-efficiency silencers are supplied for metro, subway and tunnel ventilation systems.
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