Cutting a chemical plant’s valve-driven shutdown exposure from 6 weeks to 9 days

The situation

A specialty chemical producer in Antwerp could not accept six-week lead times on API 6D trunnion ball valves for a scheduled turnaround, because each week of delay extended the plant outage.

What was done

• 1The requirement was re-specified against a measurable acceptance test before any price was discussed — in this case order-to-delivery lead time measured on incoming goods, not on a supplier’s own paperwork.
• 2Process control was changed to hold that measurement: standard at API 6D / API 6DSS, ISO 14313, size / rating at 6" full bore, ASME Class 300.
• 3Evidence was tied to each lot so the buyer could verify the claim rather than trust it. That is why the programme ran 150 days: the first 8 lots were used to prove stability before volume was released.

Evidence you can ask to see

Serial-numbered API 598 pressure test certificates, API 607 fire-safe certificate, carrier bills of lading with dispatch dates

These are buyer-side or third-party records, not supplier marketing. Where a document is commercially sensitive we will ask the buyer for permission before sending it, and say so rather than sending a redacted page that proves nothing.

The part involved