2901207958 UD 240+ High Efficiency Coalescing Filter Element for Compressed Air

Product Introduction

Pressure drop across the air line is wasted energy, and trapped aerosols are hidden contamination. 2901207958-UD240+ is a precision line filter element matched to the UD240+ compressed air housing, commonly specified for Atlas Copco systems and equivalent aftermarket channels. Situated downstream of the air-oil separator, this coalescing cartridge strips fine solid particulates and residual oil mist from the discharge stream. Delivering clean air protects dryers, control valves, and pneumatic tools while stabilizing process quality.

Operating with a saturated or bypassed element allows aerosols and dust to reach sensitive equipment, accelerating wear, fouling dryer beds, and inflating power draw through rising restriction. Replace on scheduled service hours or when the housing differential-pressure alarm triggers. During fitting, degrease the bowl, inspect the housing bore, and ensure the O-ring seats without twisting—unfiltered bypass is the usual culprit behind persistent oil carry-over even after a fresh install. Torque the cap evenly and recheck for leaks under pressure.

Confirm housing model, flow capacity, and port size before dispatch; filter grades and seal profiles shift between production runs. Service life fluctuates with intake conditions, pre-separation efficiency, and ambient humidity, so the removed cartridge and machine serial remain the final fitment check. Also called line filter element, coalescing filter, compressed air precision filter cartridge.