Dupill Group certified welder on a critical-facility component
Dupill Group
Since 1985

Precision where
it matters most

Valve, welding, and engineering services for the nation's most critical nuclear, federal, and power-generation facilities. Family-owned. Veteran-owned. On call 24/7.

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Forty years on the hardest jobs

For four decades, the facilities where failure is not an option have trusted one partner.

Valve services
01 — Valve Services

Every valve.
Every type.

Replacement, repair, actuation, testing, and qualification — in the shop, in the field, and through outages. National Board VR and R certified, with a mobile VR trailer ready to deploy.

PRV / SRV TestingSeat ReplacementIn-Body Machining
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Specialty welding
02 — Specialty Welding

Built to
tolerance.

Qualified procedures for alloys from carbon steel to T22. Large-component replacements, piping upgrades, and off-site pre-fabrication engineered to shorten outages and reduce dose.

GTAW · SMAW · GMAW · FCAWHeat TreatingALARA Focused
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Engineering
03 — Engineering

Legacy systems,
kept running.

Commercial grade dedication, reverse-engineering, procurement, inspection, and obsolescence support — backed by a full NDE suite. We qualify what others can't source.

Commercial Grade DedicationNDE: VT/PT/MP/RT/UT
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40yrs
Family-owned since 1985
5
U.S. locations
24/7
Outage response
$4.6M
NASA Artemis award
Proven on the record

Trusted where
the stakes are highest

Hanford · Bechtel
Waste Treatment Plant
On-site valve maintenance since 2018. Bechtel Premier Supply Chain Contributor, 2022.
NASA · Artemis
Mobile Launcher 2
FCCI — $4.6M Bechtel award. Cryogenic & pressure-relief valves.
DOE · Savannah River
Site Support & Fabrication
Pump-mast assemblies, SHOC tanks, riser covers, decon nozzles.
Trusted by the primes & utilities
BechtelFluorDuke EnergySouthern CompanyConstellation EnergyEntergy
Qualified & Compliant 10CFR50 App. B iThe federal quality-assurance criteria for U.S. nuclear power plants — Appendix B of 10 CFR Part 50.ASME NQA-1 iASME NQA-1 — the nuclear industry's quality-assurance program standard.ISO 9001:2015 iThe international standard for quality-management systems.NIST SP 800-171 iFederal cybersecurity standard for protecting controlled unclassified information (CUI).National Board VR · R iNational Board stamps: VR (relief-valve repair), R (pressure-retaining repair).
One group, three divisions

Specialized teams

Nuclear

DG Nuclear

Valve, welding, and engineering to the rigorous quality programs nuclear and DOE work demands.

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Industrial

DG Services

Field service, fabrication, and maintenance for power generation, oil & gas, and heavy industry.

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Prime Subcontracting

FCCI

An award-winning prime subcontractor for DOD, DOE, and primes like Bechtel.

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Let's talk about your scope

Request a quote

Tell us about your valves, your welding scope, or your next outage. Every request gets reviewed — and a response within 24 hours.

Start your request (724) 845-7300
We'll get back to you within 24 hours