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EXAIR Exhaust Muffler: 1/4 in NPT, 40 scfm, 5 dBA NRR, 0 psi Max Op Pressure - Vortex Tube Exhaust Mufflers
EXAIRVortex Tube Exhaust Mufflers

EXAIR Exhaust Muffler: 1/4 in NPT, 40 scfm, 5 dBA NRR, 0 psi Max Op Pressure

The EXAIR Exhaust Muffler (MPN 3903) is a 1/4 in NPT Vortex Tube Exhaust Muffler made of aluminum. It is designed for hot exhaust applications and has a maximum operating pressure of 0 psi and a maximum operating…

SKU 3G-OTH-146006

Brand
EXAIR
Item
Exhaust Muffler: 1/4 in NPT, 40 scfm, 5 dBA NRR, 0 psi Max Op Pressure
Category
Vortex Tube Exhaust Mufflers
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Technical Specifications

EXAIR
Manufacturer Part Number
3903
Type
40 scfm, 5 dBA NRR
Max Op Temp
265°F
Max Op Pressure
0 psi
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EXAIR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The EXAIR Exhaust Muffler (MPN 3903) is a 1/4 in NPT Vortex Tube Exhaust Muffler made of aluminum. It is designed for hot exhaust applications and has a maximum operating pressure of 0 psi and a maximum operating temperature of 265°F, with a noise reduction rating of 5 dBA NRR and a flow capacity of 40 scfm.

Frequently Asked Questions

What is the EXAIR Exhaust Muffler 3903 used for?

The EXAIR Exhaust Muffler 3903 is used to reduce noise from vortex tube exhaust in hot industrial environments. It fits 1/4 in NPT ports, handles 40 scfm flow, and lowers sound by 5 dBA NRR, making it suitable for cooling, cleaning, or drying applications where hot air is vented.

What are the specifications of the EXAIR Exhaust Muffler 3903?

The EXAIR Exhaust Muffler 3903 has a 1/4 in NPT connection, 40 scfm flow capacity, 5 dBA NRR noise reduction, 0 psi maximum operating pressure, and 265°F maximum operating temperature. It is made of aluminum and designed for hot exhaust applications.

Where to buy the EXAIR Exhaust Muffler 3903 worldwide?

3G Electric supplies the EXAIR Exhaust Muffler 3903 to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time — we source genuine EXAIR components across our 14 industrial departments.

How to install the EXAIR Exhaust Muffler 3903?

Thread the 1/4 in NPT muffler directly onto the vortex tube exhaust port. Use thread sealant on male NPT threads to prevent leaks. Ensure the muffler is not obstructed and ambient temperature stays below 265°F. Tighten by hand plus a quarter turn with a wrench — do not overtighten aluminum threads.

Used in

Common applications for EXAIR
Automotive assembly — EXAIR air knives (e.g., model 112048) for drying painted surfaces after washing
Electronics manufacturing — EXAIR vortex tubes (e.g., MPN 3204) for cooling control cabinets in high-heat environments
Food processing — EXAIR air guns (e.g., MPN 1928-6) for blow-off cleaning of conveyor belts and packaging
Packaging lines — EXAIR stay-set hoses (e.g., MPN 9224) for directing compressed air to remove debris from containers
Metalworking — EXAIR pistol-grip air guns (e.g., MPN 1690-6-CS) with safety shields for chip removal from machining centers
Pharmaceutical production — EXAIR anti-static air knives (e.g., model 112048) for neutralizing static on tablet packaging films

EXAIR Products

3G Electric supplies EXAIR vortex tube exhaust mufflers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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