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Products/Festo/173729
Festo 173729 Micro filter LFMA-3/8-D-MINI-A-NPT
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Festo

173729

Micro filter LFMA-3/8-D-MINI-A-NPT

The Festo part number 173729 is a mini industrial component from series D featuring a 0.01 µm filtration grade and a fully automatic condensate drain. It operates at a pressure range of 2 bar to 12 bar, accommodating compressed air as per ISO 8573-1:2010 [6:8:4] or inert gases within a medium temperature of 1.5 °C to 60 °C. The unit delivers an output air quality class of ISO 8573-1:2010 [1:7:2] with a maximum standard flow rate of 450 l/min, a minimum standard flow rate of 100 l/min, a 99.9999 % filter efficiency, and a residual oil content of 0.01 mg/m³. Constructed with a metal bowl guard and a corrosion resistance class of CRC 2, it supports vertical mounting via in-line installation or a retaining bracket utilizing 3/8 NPT pneumatic connections. 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
173729
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 173729.
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Verified configuration

Technical Specifications

Series
D
Size
Mini
Grade of ltration
0.01 µm
Condensate drain
Fully automatic
Operating pressure
2 bar...12 bar
Operating medium
Compressed air as per ISO 8573-1:2010 [6:8:4] | Inert gases
Air quality class at the output
Compressed air as per ISO 8573-1:2010 [1:7:2] | Inert gases
Max. standard ow rate for air quality class
450 l/min
Min. standard ow rate for air quality class
100 l/min
Filter efficiency
99.9999 %
Bowl guard
Metal bowl guard
Corrosion resistance class (CRC)
2 - Moderate corrosion stress
LABS (PWIS) conformity
VDMA24364-B1/B2-L
Temperature of medium
1.5 °C...60 °C
Ambient temperature
-10 °C...60 °C
Residual oil content
0.01 mg/m³
Type of mounting
Alternatively: | In-line installation | With retaining bracket
Mounting position
Vertical
Pneumatic connection 1
3/8 NPT
Pneumatic connection 2
3/8 NPT
Housing material
Die-cast zinc
Compressed air lter material
Borosilicate glass ber
Material of bowl
PC
Note on materials
RoHS compliant

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 173729. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.