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Step 03

Coolant filtration skids

Full-flow filtration costs energy and footprint.

Side-stream 5–15% of volume
Full turnover 6–12h
Multiplier · up to 10×

No distribution units, no cold plates.

A side-stream filtration skid with its pump, filter vessel and differential-pressure gauge on a plantroom floor

Side-stream skid with its differential-pressure gauge

01 / Position map

Five positions

Five filtration positions POSITION 1POSITION 2 POSITION 3POSITION 4 POSITION 5 Incoming water Side-stream Heat exchanger Unit inlet Final polish bag 1–10 µm protection rating 5–15 % of flow strainer class 500 µm strainer rating cartridge 0.5–5 µm rating bulk polishing condenser guard cold plates this skid pipe scaling occurs downstream of centralized filtration
02 / Skid classes

Three skid classes

Every code carries a DP instrument across the vessel.

03 / Micron categories

Which micron number applies

Category Figure Owner
Protection rating 7–10× smaller than the finest channel dimension This page · a 50 µm passage takes a 5 µm filter · absolute, not nominal
Commissioning staging 100 → 50 → 25 µm · commissioning staging A procedure owned by flush skids, not the filter that runs afterwards
Strainer rating 500 µm class · strainer rating The unit-inlet guard, not a filtration stage
IT-side target below 5 µm protection rating at the cold plate · below 10 µm at a rear-door heat exchanger Solids target

A full-flow filter sits 2× as fine as the smallest passage; side-stream to 10×. Viscosity 1.68 to 8.20 mPa·s, 15 % to 55 % PG.

04 / Element comparison

Beta ratio

Beta is upstream over downstream count at a stated size.

Beta ratio bands, logarithmic axis 1210 200500900 1 4002 000 logarithmic β axis · valid only at the stated size poor β 2–10 high-quality β 200–2000 β ≥ 75 about 98.7 % capture at 50 µm, β=75 passes one particle in 75 · β at the stated size
Element performance is rated per ISO 16889:2008 multi-pass testing.
Metric Figure
Selected minimum β β ≥ 75 · 98.7 % capture
Efficiency (β−1)/β · at the measured size
Absolute-rated media 99.98 % retention
Nominal-rated media 90 % nominal
05 / Differential pressure

The instrument that manages a filter

Change-out 35psid · ≈2.4 bar
Terminal limit 60psid · 4.1 bar

At 20 °C.

Clean start, 2 µm element, protection rating , protection rating 2psid · 0.17 bar

Gauges or sensors both sides of every filter and strainer. Range 0–100 kPa at ±0.075 % FS. Wire to the loop telemetry kit: telemetry and instruments.

06 / Vessel and media

Size on the dirty state

Vessel ratings and media options, all on a protection rating.
Parameter Value
Working pressure up to 150 psi · 10.3 bar
Flow per bag hole up to 150 GPM · 34 m³/h
Configuration 12-round multi-bag
Design basis loaded state
Metal filter cloth 5–40 µm protection rating
Coarse plain weave100–200 µm and above
Construction 316L
High-flow cartridges to 1 µm
Backwash types to 10 µm protection rating
Prefiltration upstream of 5 µm protection rating
Vessel connection size quoted on request

Water-quality bands carry their loop type: technology cooling 0.2–20 µS/cm at pH 8.0–9.5; facility water 50–300 µS/cm at pH 7.0–9.0.

07 / Datasheets

Three skids, three documents

Ten parameter rows minimum, including beta ratio.
Model Side-stream flow Loop scale Sheet
EMS-FF-FS2020 L/minRack and in-row loopsPDF
EMS-FF-FS6060 L/minRow loops and small roomsPDF
EMS-FF-FS150150 L/minRoom and plant loops, multi-bag classPDF

The skid polishes the loop. Staged procedure: flush skids.

Specification request

Ask for the specification sheet

Leave your work email and the model code. Send the loop circulating volume, the finest channel dimension and the target particle size with the code.

  • A specification table of at least ten parameter rows per skid, including the side-stream fraction row and the beta-ratio row.
  • The element selection sheet, with the change-out trigger and the terminal limit as separate rows.
  • One working day for a reply, with the datasheet, the selection sheet and the lead time.
Reply within one working day