A container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.
Pressure vessels can be dangerous, and fatal accidents have
occurred in the history of their development and operation.
Consequently, pressure vessel design, manufacture, and operation
are regulated by engineering authorities backed by legislation. For
these reasons, the definition of a pressure vessel varies from
country to country.
|Valve||Pipe||Storage Tank||Boiler||Heat Exchanger|
|Dish end||Regenerators||Coalesces||Slug Catchers||Dehydrators|
General Codes of Practice
|ASME: American Society of Mechanical Engineers||ASME V111 Div. 2.2 Construction/Design Boiler pressure Vessels|
|API: American Petroleum Industry||API 510 Pressure vessel inspector certificate|
|BS: British Standards||BS EN 10204 Types of inspection documents|
|PED: Pressure Equipment Directive. (Europe)||EN 13445 Pressure Equipment Directive (97/23/EC)|
|ISO 9001: 2008||Quality Management System|
2. Checklist of pressure vessel
Supplier Quality Plan
Pre-Inspection meeting (PIM)
Vendor Purchase material specifications
Welding procedures (Weld map, WPS,PQR,PWHT, test plates, Weld
overlay, Weld repair)
NDT & Test procedures
Procedures for PWHT, step cooling, mechanical tests (if
Materiel certification review
Inspection of material at Vendor’s facilities/shop
Inspection of sub–ordered components
NDT personnel qualifications
Quality control management
Raw material inspection at mill/sub supplier works.
Transfer of markings/Traceability of material.
Cold/Hot forming re-heat treatment, rolling, tacking, fit up.
Welding monitoring (WPS variable)
Welding of closure seams
Production test plates/Welding/removal and Tests
Non-destructive testing (RT, PT, MT, UT) mechanical tests
Visual and Dimensional before PWHT
PWHT/Thermocouples location/Calibration, Charts
Internal Installation ( as applicable)
Step cooling test
Ferric content test
Bonding Integrity test
Controls & Final Tests:
Visual examination (internal & external)
Supplementary test - ferrite, Impact, hardness (If applicable)
Tightness test (pads, nozzle Reinforcement pads)
Pickling/passivation - as applicable
Surface preparation & painting/Coating
Marking - Preservation for Shipment
Manufacturing Data Book
3. Why use INF pressure vessel inspection services
INF have provided pressure vessel inspection services to many
leading oil&gas company, EPC and trading agent, such as: KNPC,
Shell,TR, GE, Exxonmobil, Samsung, and so on.
Our inspection step through most pressure vessel manufacturers in
china. And most of our inspector have working experience in these
4. Inspection items for pressure vessel inspection services
During our pressure vessel inspection services, the inspector will carefully survey all critical manufacturing
steps, and perform inspection items like
chemical composition check,
low temperature test,
and all requested inspection activities.
|Pre-Shipment Inspection (PSI)|
Production Monitoring (PM)
During Production Check (DUPRO)
Initial Production Check (IPC)
Lab test witness
Daily, weekly, monthly or per customer requirement
English report or per customer request
Report will be submitted within 48 hour after inspection finished
5. Our advantages
To ensure the quality and delivery of the valve to customers, INF
provide professional pressure vessel inspection services, all
quality assurance inspector are with at least 5 years related
working experiences in pressure vessel industry and all requested
qualification like NDE, ASNT.
Our pressure vessel inspection services network cover most area of
china, inspector can attend the inspection upon customer's
notification within 24 hours.
Professional pressure vessel inspection services team:
-At least 5 years working experiences in industry QC field
-Personal Qualification as required
-English speaking and writing skill
Please include following information in your inquiry: your company
name, project background, product type, applicable
standard/specification, inspection date, duration, number of
inspectors, factory's location.