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Red metal-bodied compressed air filter with transparent bowl and automatic drain, 1/2 NPT ports

Festo

Festo LF-1/2-D-MIDI-A-NPT Compressed Air Filter 1/2 NPT 3000 l/min 40 µm

SKU CH-4TDD-VR219 MPN LF-1/2-D-MIDI-A-NPT

Removes particles down to 40 µm from compressed air at up to 3000 l/min through 1/2 NPT ports with fully automatic condensate drainage

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Removes contaminants with 40 µm filtration grade
  • Delivers 3000 l/min standard nominal flow rate
  • Operates reliably from 2 bar to 12 bar pressure
  • Withstands ambient temperatures between 5 °C and 60 °C
  • Features fully automatic condensate drain with 43 ml capacity

Compressed Air Filter 1/2 NPT

The Festo LF-1/2-D-MIDI-A-NPT is a midi-series compressed air filter designed for pneumatic systems that require clean, dry air at the point of use. It suits maintenance engineers, automation technicians and workshop operators who need reliable contaminant removal in industrial environments. The unit installs vertically in-line with 1/2 NPT ports and delivers a standard nominal flow rate of 3000 l/min. It meets ISO 8573-1:2010 class [7:8:4] for output air quality.

Upgrade From Manual Drain Filters

This model replaces filters that rely on manual condensate draining by integrating a fully automatic drain and a 43 ml condensate capacity. The jump is worth it when downtime for bowl emptying disrupts production or when moisture carry-over risks damaging downstream valves and actuators. A 40 µm filtration grade captures coarse particulates while the metal bowl guard adds durability in harsh conditions. It operates reliably between 2 bar and 12 bar pressure.

Build Integration Requirements

The die-cast zinc housing with a polycarbonate bowl fits directly into existing 1/2 NPT pipework without adapters. Vertical mounting orientation must be observed for the automatic drain to function correctly. RoHS-compliant materials simplify regulatory compliance for new machine builds. The filter frees up maintenance intervals by eliminating manual drain checks and supports ambient and medium temperatures from 5 °C to 60 °C.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $85.99
Cheaper than about 57% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameFESTO
Model nameLF-1/2-D-MIDI-A-NPT
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

What size NPT threads does the filter use for inlet and outlet?

Both pneumatic connections are 1/2 NPT, so the filter mounts directly into a 1/2 NPT female port on each side.

How do you set the automatic condensate drain so it actually purges?

Install the bowl vertically with the drain pointing down; the float mechanism only opens when liquid reaches the 43 ml level.

When should the 40 µm filter element be replaced?

Replace the PE element when the pressure drop across the filter rises noticeably or at the next scheduled service interval.

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