Z-LineGT Pre-filtration Cells

EMW®’s Z-Line pre-filter cells are known for outstanding performance proven in many years’ service. Taking this proven strength and durability to new levels, the new Z-LineGT generation is ideally suited for inlet air filtration of gas turbine power generators.

Characteristics

  • Inlet air pre-filter cells of gas turbine power stations
  • Rugged and durable
  • Efficient filtration of coarse particulates
  • No leakage
  • Protective shield for downstream filter elements
  • Minimal maintenance costs

Application Fields

Pre-Filter Cells: The Job Description

Modern air intake systems utilize multiple-stage filters. Initial filtration occurs in the coarser pre-filter cell which removes large-diameter particulates from the inlet air to control clogging of downstream filters. In theory, the pre-filter cell is intended to act as a protective shield for the filtration system as a whole.

So Much For Theory!

Many pre-filter cells do not get the job done in actual practice, due in most cases to inadequate physical strength. In the commonly encountered event that moisture is entrained in inlet air, the filter medium quickly softens and collapses. Filter media mounted in cardboard frames are particularly susceptible to damage in moist environments.

As a result, products of these types frequently do not stand up to the tough demands posed by air intake systems. In worst-case scenarios, the air stream flows laterally without obstruction around the damaged filter.

Z-LineGT: Features and Benefits

Z-LineGT pre-filter units feature convincing benefits such as rugged construction and long service life, avoiding the need for frequent filter changes. Maintenance requirements are reduced not only for pre-filters, but for downstream high-efficiency filters as well.

Z-LineGT pre-filters are housed in sturdy plastic frames which are superior to conventional cardboard frames. Cemented firmly in place on all 4 sides, the progressively structured filter medium sits in its frame as solid as a rock. Centrally positioned support struts provide physical reinforcement and ensure virtually constant low pressure drop. For users of Z-LineGT pre-filters, filter medium collapse and frame distortion are now things of the past.





EMW´s new pre-filter version Z-LineGT features convincing benefits such as rugged construction and long service life, avoiding the need for frequent filter changes. As alternative EMW offers a version with a header frame, which is easily applicable at existing frame systems. The picture above shows such an installation in a filter house at UK.

Technical Data

Dimensions (mm) 592 x 592 x 48 592 x 592 x 96 592 x 592 x 100 592 x 592 x 150
Filter Class (EN 779) G4 G4 G4 G4
Nominal Air Flow Rate [m³/h] 3.400 3.400 3.400 3.400
Average Arrestance ≥90% ≥90% ≥90% ≥90%
Initial Pressure Drop 65 Pa 55 50 Pa 80 Pa
Dimensions (mm) 592 x 592 x 48 592 x 592 x 96 592 x 592 x 150
Filter Class (ISO 16890) ISO Coarse 80% ISO Coarse 80% ISO Coarse 80%
Nominal Air Flow Rate [m³/h] 3.400 3.400 3.400
Initial Pressure Drop 65 Pa 55 80 Pa

All data given are based on test results determined according to EN 779 or ISO 16890. The data are average values subject to tolerances due to normal production fluctuations. The figures are only suitable for comparison with those of other products tested according to the same standard.

Application Fields

Compare