Before you place the package.

The questions project managers, site engineers and EPC buyers ask about pipework, answered from the jobs on KBVI's record. No sales pitch.

Getting a price

What a pipework contractor needs to price a job

Four things: the scope, in a sentence or a drawing; the site and when access opens; the programme you are working to; and anything already fabricated or on order.

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Fabrication

Off site spool fabrication or site running: which, and when

Spools fabricated off site to drawings go in faster and keep hot work off a busy plant; site running suits lines whose route can only be fixed once the plant around them exists.

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Outages

Pipework in an outage window: how the job is planned

An outage window is fixed, so the planning happens before it opens: survey the plant, agree the scope, prefabricate every spool that can be made in advance, and arrive with the people and kit to strip out and refit inside the window.

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Power generation

Fire mains first: the first trade on a new build power station

On a new build power station the fire mains and suppression pipework go in before anything else can be commissioned, so the pipework contractor is usually the first trade on site.

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Materials

Carbon or stainless for process pipework

Carbon steel is the workhorse for water, steam, oil and hydraulic lines and most fire mains; stainless is used where the process, the cleanliness or the temperature demands it, such as furnace cooling and hygienic lines.

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From the record

Replacing clarifier pump pipework on a running steelworks

Clarifier pump pipework on a steelworks is replaced by surveying the existing runs, prefabricating the new spools, stripping out the old pipework and refitting the new inside the time the plant allows.

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