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Commissioning and Service of Compressed Air & Gas Dryers

A verified dew point from your dryer's first start-up, kept there for the rest of its working life.

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Service overview

From first start-up through the dryer's service life

We commission and service refrigerated, heatless desiccant, heated desiccant, membrane and breathing air dryers, and dryers for nitrogen, hydrogen, biogas, natural gas and CO₂, together with their filters, drains, bypass valves and dew point measurement point. Commissioning takes your dryer from a mechanically complete installation to one delivering its specified pressure dew point in production: installation checks, pre-start checks, a controlled start-up set to your actual pressure, temperature and flow, then measured performance and operator training at handover.

Service keeps that baseline. Scheduled visits replace elements, silencers, valve seal kits and desiccant at the intervals their wear dictates, clean condensers, test drains and re-measure the outlet dew point. Corrective visits trace dew point excursions, excess purge, high pressure drop and alarms to their cause. Every visit ends with a report of what was measured, replaced and adjusted, as found and as left.

  • BaselineMeasured and signed at commissioning
  • ISO 8573-3Dew point measurement methods
  • As found, as leftRecorded at every visit
  • One serviceDryer, filters, drains and dew point point

Benefits

The problems it solves

A dryer is only as good as the conditions it's set up for and the care it gets afterwards. Here is what goes wrong, and how commissioning and service prevent it.

  • Ratings that don't match your site

    The problem

    Saturated air at 45 °C and 7 bar g brings the dryer about 70 % more water than at its 35 °C reference condition.

    How it solves it

    Commissioning measures the dew point under your real conditions, so production starts on dry air and moisture never enters a new network.

  • Factory settings

    The problem

    A purge set for 7 bar g on a 5 bar g system under-regenerates the desiccant, and on a 10 bar g system wastes compressed air around the clock.

    How it solves it

    Purge, regeneration and alarm values are set to your actual operating pressure and temperature.

  • Installation errors

    The problem

    Dryers ahead of the separator, missing pre-filters, drains against back pressure and bypass valves left open all stop a dryer reaching its dew point.

    How it solves it

    Engineers verify the installation against the design and the manufacturer's requirements before start-up.

  • Silent wear

    The problem

    Desiccant loses capacity every cycle, filter elements saturate and valve seals leak, yet the dryer keeps running.

    How it solves it

    Parts are replaced on schedule, before seals leak or elements rupture, and each reading is compared with the commissioning baseline.

  • Wasted energy

    The problem

    A heatless dryer rated at 1,000 m³/h with a 14.5 % purge vents about 127,000 kWh of compressed air a year.

    How it solves it

    Correct purge settings, leak-tight exhaust valves and clean filters cut compressed air losses and pressure drop.

  • Gas safety

    The problem

    Hydrogen is flammable in air between about 4 % and 75 % by volume, so admitting it to a dryer still full of air is a hazard.

    How it solves it

    Inert gas purging, leak testing and vent verification are completed before the dryer carries process gas.

Where it’s used

Wherever a dryer has to hold its dew point

From instrument air to food contact to hydrogen, these are some of the plants that rely on dryers commissioned and serviced to a measured standard.

  • Electricity pylons and power lines at sunset

    Power generation

    Instrument air, switchgear air and generator cooling gas dryers supporting availability-critical plant.

  • Wine bottles moving along a bottling line

    Food and beverage

    Air in direct contact with food at −40 °C PDP, where service records form part of HACCP documentation.

  • Yellow tablets spilling from a medicine bottle

    Pharmaceuticals

    Process air whose specified water class GMP audits need evidence of throughout production.

  • Robots welding a car body on an assembly line

    Automotive and general manufacturing

    Paint shops, powder coating, assembly tools and pneumatic automation that depend on stable dry air.

  • Blue plastic bottle caps in a moulded tray

    Plastics and PET

    High-pressure blowing air and resin drying lines, with dryers holding dew point at 30–40 bar g.

  • A row of yarn winding machines in a textile mill

    Textiles

    Air-jet looms using large air volumes, where purge and pressure losses carry a direct energy cost.

Also oil, gas, refining and petrochemicals, hospitals and healthcare, breathing air, electronics and semiconductors, hydrogen production and fuel cells, biogas and CNG, beverage CO₂ recovery and nitrogen generation.

Keep exploring

More from our range

Our other services, and equipment for every stage of your compressed air.

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