2901200301-2901200501 Compressed Air Line Filter Kit For Atlas Screw Compressor

Product Introduction

Clean air downstream starts with the right coalescing/particulate stage in the treatment line—not with the end tool. The 2901200301–2901200501 range covers Atlas Copco compressed-air line filter / filter-kit items (DD/PD/QP-type treatment stages on rotary screw air systems), used to remove oil aerosol, water mist, rust/pipe scale and fine dust before air reaches dryers, regulators, valves, and process equipment. Media typically works by coalescence and depth filtration so liquid droplets merge and drain to the bowl/separator path instead of riding downstream.

A neglected element rarely fails with a bang—it builds differential pressure, starves flow, loads the dryer, and pushes oil/water forward into instruments and finish lines; symptoms often get misread as a “bad air-oil separator” or “dryer fault.” Replace on DP alarm or scheduled service (and sooner in humid, oily, dusty intake/plant-air conditions). During fitting: isolate and relieve all pressure, drain the bowl, clean both seal faces, fit the O-ring/element squarely without twisting the seal or cocking the end cap, and verify bowl/drain reassembly.

These numbers/photos commonly span a range/size series (e.g., DD/PD/QP 30–50 class or similar treatment-line sizes); do not assume interchange with another stage by appearance—DD/PD/QD differ by micron grade/stage order. Confirm machine model/serial, housing type, flow/port size and the removed label before dispatch. Also called line filter cartridge, coalescing filter kit, precision filter element, air treatment filter,