12639

Name: Festo 12639 Pneumatic muffler U-1/4-B-NPT
Brand: Festo

Pneumatic muffler U-1/4-B-NPT

The Festo part number 12639 is an industrial component featuring an aluminum housing and screwed plug with a 1/4 NPT pneumatic connection, operating at pressures from 0 MPa to 1 MPa (0 bar to 10 bar, 0 psi to 145 psi). This RoHS-compliant unit operates within an ambient temperature range of -10 °C to 70 °C, delivering a flow rate of 3000 l/min with respect to the atmosphere while utilizing compressed air as per ISO 8573-1:2010 [7:-:-]. With a product weight of 17 g, a noise level of 78 dB(A), and a CRC rating of 1, it supports any mounting position and allows for lubricated operation. Submit the exact part number, quantity, and application requirements for a quote.

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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.

Manufacturer: Festo
Part number: 12639
Data verification: Manufacturer evidence reviewed

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Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Mounting position: Any
Operating pressure for entire temperature range: 0 MPa...1 MPa | 0 bar...10 bar | 0 psi...145 psi
Flow rate with respect to atmosphere: 3000 l/min
Operating medium: Compressed air as per ISO 8573-1:2010 [7:-:-]
Information on operating and pilot media: Lubricated operation possible
Corrosion resistance class (CRC): 1 - Low corrosion stress
LABS (PWIS) conformity: VDMA24364-B1/B2-L
Noise level: 78 dB(A)
Ambient temperature: -10 °C...70 °C
Product weight: 17 g
Pneumatic connection: 1/4 NPT
Cushioning insert material: Protective grounding
Material of screwed plug: Aluminum
Note on materials: RoHS compliant
Housing material: Aluminum

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 12639. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.