Mechanical Integrity · Gilbert & Greater Phoenix
API 510 Pressure Vessel Inspector. AWS Certified Welding Inspector. UT Level II. John Kocur brings 30+ years of refinery process-unit turnaround experience to facility managers and plant-maintenance engineers across Gilbert and the Greater Phoenix area.
Independent and principal-performed — you work directly with John Kocur.
Services
Mechanical integrity evaluations, code-compliance checks, preventative maintenance assessments, and detailed condition documentation — for pressure vessels and industrial piping systems.
In-service inspection of pressure vessels — internal, external, and thickness-based condition assessment — performed to the API 510 code and evaluated against ASME Section VIII, to support run/repair/replace decisions.
Review of vessel inspection history, repair, and alteration records against the National Board Inspection Code (NB-23) and ASME Section VIII to confirm inspection intervals and repair documentation stay within code.
Visual weld inspection and welding procedure / welder performance qualification review on pressure-retaining and structural welds, applying ASME Section IX and, where the job calls for it, AWS D1.1 requirements.
UT Level II thickness surveys at established condition-monitoring locations to trend wall loss and corrosion rate over time, plus UT weld scanning to flag indications for further engineering evaluation.
On-site inspection coverage during planned turnarounds and shutdowns when vessels and reactors are opened for internal access — including specialized experience on UOP CCR Platformer units and reactors, in fabrication and in-situ.
Inspection scheduling and findings documentation aligned to the mechanical integrity element of OSHA's Process Safety Management standard, keeping vessel inspection history consistent with recognized good engineering practice.
Visual weld inspection and UT thickness checks on process piping welds and wall sections, referenced against ASME B31.3 process piping requirements, to flag condition issues for engineering review.
Complete written inspection records — thickness data, weld findings, photos, and corrosion-rate calculations — organized to support plant inspection files, code-required documentation, and future turnaround planning.
Describe the vessel, piping, or turnaround and John will scope the right inspection in one conversation — no call center in between.
480-580-7109About the inspector
John Kocur has spent more than 40 years working pipe: welding it, fitting it as a UA journeyman steam pipefitter, and for the last 21 years, inspecting it as an AWS-Certified Welding Inspector (CWI #04061601). He holds API 510 Pressure Vessel Inspector certification (#20977) and UT Level II ultrasonic testing certification, along with a BS from Indiana University — the combination that lets him evaluate both the weld and the base metal behind it.
The bulk of that career ran through oil-refinery process units: new builds, expansions, and turnarounds, on projects around the world. His specialty within that work is the UOP CCR Platformer — reactors and CCR units he has inspected in the fabrication shop before they ship, and in-situ during a shutdown, when the unit is down and every day of downtime costs money.
Kocur Services, Inc. is based in Gilbert, Arizona, and works with facility managers and plant-maintenance engineers across Gilbert and the Greater Phoenix area. For refinery turnaround work, John travels.
Why Kocur Services
Pressure Vessel Inspector, certification #20977 — qualified for in-service inspection and fitness-for-service evaluation under the API 510 code.
Certified Welding Inspector (#04061601), backed by 40+ years actually welding pipe — he knows what a bad weld looks like before the NDT confirms it.
Ultrasonic thickness testing and flaw detection done directly by the inspector — no waiting on a subcontracted NDT vendor to schedule around your outage.
30+ years on refinery process-unit builds, expansions, and turnarounds, including specialized work on UOP CCR Platformer reactors — in fabrication and in-situ during shutdowns.
You call John Kocur, not a dispatcher or a scheduling desk. He performs the inspection and stands behind the report.
Based in Gilbert, serving the East Valley and Greater Phoenix — with the flexibility to travel for refinery turnaround work wherever it's needed.
Service area
Kocur Services works with facility managers and plant-maintenance engineers throughout the East Valley and Greater Phoenix — and travels for refinery turnaround work.
One certified inspector covering pressure vessels, process piping, and welds — coordinated around your maintenance window instead of a vendor's queue.
30+ years of turnaround work means John travels for the job — for refinery shutdowns beyond the Valley, he comes to the unit.
FAQ
Yes — API 510 Pressure Vessel Inspector, certification #20977.
Yes. In-service and shutdown inspection of pressure vessels and process piping is core to the work, including in-situ inspection of UOP CCR Platformer reactors and units during shutdowns.
API 510 covers the in-service condition and fitness-for-service of a pressure vessel — corrosion rates, thickness, whether it's fit to keep running. CWI (AWS Certified Welding Inspector) covers weld quality against code, typically during fabrication or repair. John holds both certifications personally, so one inspector covers both scopes.
Both. Mechanical integrity evaluations, code-compliance checks, and condition documentation cover pressure vessels and industrial piping systems.
Yes. UT Level II certification means ultrasonic thickness testing and flaw detection happen directly, without subcontracting to a separate NDT vendor.
Based in Gilbert, Arizona, serving facility managers and plant-maintenance engineers across Gilbert and the Greater Phoenix area, with availability to travel for refinery turnaround work.
Call 480-580-7109 or email jmkocuraz@icloud.com with the vessel or piping details and your timeline.
Contact
Call for a pressure vessel or piping inspection, or send the equipment details and your turnaround timeline. You'll talk directly with John.
Short form — the essentials only. Opens in your email app; or just call.