- Document availability is product- and order-specific; this page does not claim that every certificate applies to every valve.
- Controlled originals should be matched to certificate number, revision, product scope and purchase-order requirements.
- Routine reports, type tests, material certificates and management-system documents serve different purposes.
- Sensitive or controlled files may be supplied during technical review instead of public download.
››› Document Control
A certificate page should explain what the document proves—and what it does not
A company certificate may confirm a management system or organizational approval, while a product type test may apply only to a defined design, size range or standard. A material certificate traces a specific heat or batch, and a routine test report records tests performed on a specific valve or production order.
For project acceptance, verify that the document scope matches the ordered valve, materials, pressure class, test requirement, inspection plan and applicable code edition.
Important trust statement
This page is a documentation guide and request center. It should not display or imply a certification unless the corresponding valid document is available and its product scope has been checked. Buyers should request the controlled file for project use.
››› Document Categories
Separate certificates by purpose instead of placing every file in one gallery
This structure helps engineers and procurement teams find the document that answers their actual question: organizational qualification, product performance, material traceability, routine testing or project handover.
01
Company & Management-System Documents
Documents related to the organization, management systems or manufacturing qualification. Publish only verified documents that identify the certified entity and scope.
02
Product Compliance Documents
Product- or design-level documents tied to a stated valve series, standard, size range, pressure range, material or conformity route.
03
Type & Performance Test Certificates
Evidence from defined performance, capacity or design-validation testing. State the exact test method, witness body and covered configuration.
04
Material Certificates
Traceability documents linking specified components to grade, heat number, chemical analysis and mechanical properties.
05
Routine Valve Test Reports
Order- or serial-specific records such as set-pressure calibration, shell pressure test, seat-tightness test and inspection release reports.
06
Project Manufacturing Record Book
A compiled dossier of approved drawings, datasheets, calculations, certificates, inspection reports, test records and shipping release documents.
››› Certificate Page Fields
Information that should appear beside every document preview
Do not publish a certificate image without searchable text and scope information. Readable metadata helps users understand relevance and gives search engines clear, verifiable page content.
When a public preview is redacted or watermarked, explain that the controlled original is supplied after product and project verification.
Minimum document metadata
- Exact certificate or report title
- Issuing organization, laboratory or inspection body
- Certificate or report number
- Issue date, expiry date or revision status
- Certified legal entity or manufacturer name
- Applicable product series, size, material or pressure range
- Referenced standard, test method or conformity basis
- Language and available translation
- Public preview status and original-file request method
- Project-specific limitations or exclusions
››› Material Traceability
Material certificates should connect the component to the actual heat or batch
For pressure-retaining parts and critical trim, the package may need to show material specification, grade, heat number, chemical composition, mechanical properties, heat treatment and any additional low-temperature or corrosion-service checks.
The purchase order should state the required inspection-document type and whether PMI, impact testing, hardness or other supplementary verification is required.
Material review checklist
- Component name and drawing or bill-of-material reference
- Material standard and grade
- Heat or batch number
- Chemical composition
- Mechanical properties
- Heat-treatment condition
- Impact, hardness, PMI or corrosion-service results if specified
- Traceability between marking, valve records and certificate
››› Type & Performance Testing
Type-test evidence must be matched to the tested design and claimed product range
A type or performance certificate does not automatically cover every valve built by the manufacturer. Review the tested model, orifice, size range, pressure range, medium, standard edition and any extension rules stated by the issuing body.
Where certified relieving capacity is required, the calculation package and selected valve should reference the applicable certified data rather than an unrelated certificate image.
Type-test scope checklist
- Tested valve design and configuration
- Orifice, inlet and outlet size range
- Set-pressure and temperature range
- Test medium and fluid phase
- Capacity, overpressure, blowdown or functional test basis
- Referenced standard and edition
- Laboratory, witness or certification organization
- Certificate validity, revision and extension limitations
››› Routine Test Reports
Order-specific reports verify the supplied valve, not only the product family
Routine records should identify the valve tag, serial number or purchase-order item so the report can be traced to the delivered unit.
01
Set-Pressure Calibration Report
Records test medium, specified set pressure, observed result, adjustment status, date, equipment and approval reference.
02
Shell Pressure Test Report
Records test pressure, hold time, medium, acceptance result and valve identification.
03
Seat-Tightness Test Report
Records test method, pressure, medium, measured leakage or acceptance result and criterion.
04
Material & Traceability Record
Links body, bonnet, nozzle, disc, stem, bellows or other specified components to material records.
05
Inspection Release Note
Confirms completion of the agreed inspection and test plan, including witness or hold points where applicable.
06
Final Documentation Index
Lists approved drawings, datasheets, calculations, certificates and test reports included in handover.
››› Document Request Workflow
How to request the correct certificate package for a project
A clear request avoids receiving documents that look relevant but do not match the ordered valve, standard or inspection scope.
01
Identify the project requirement
Provide code, client specification, inspection plan and required document list.
02
Match the valve and order
Provide model, size, set pressure, materials, quantity, tag and purchase-order information.
03
Confirm applicability
Check certificate scope, report number, revision and traceability to the supplied valve.
04
Request controlled files
Ask for readable originals, language, stamps, signatures or third-party endorsement.
05
Complete technical review
Resolve scope gaps, expired documents, missing data and conflicting requirements before release.
06
Approve the document index
Agree the final list of drawings, calculations, certificates and routine reports.
07
Compile the project dossier
Organize files by tag, purchase-order item or manufacturing-record-book index.
08
Retain revision control
Record final approved revisions and prevent uncontrolled files replacing accepted documents.
››› Request Documents
Send enough information to identify the applicable document scope
For an existing order, include purchase-order number, valve tag, serial number or model. For a new enquiry, include the project document list and inspection requirements before quotation.
Recommended request information
- Company, project and end-user name
- Valve model, size, set pressure and quantity
- Tag number, serial number or purchase-order item
- Body, trim, seat and bellows materials
- Applicable standards and editions
- Inspection and test plan
- Required certificate and report list
- Third-party witness or endorsement requirement
- Required language, format and submission date
- Datasheet, drawing or existing document index
››› Related Resources
Continue the technical and documentation review
Existing pages use verified live paths. Material and type-test certificate pages are retained as planned child pages for publication.
01
Catalogs, Datasheets & PDF Downloads
Access current product literature and downloadable technical documents.
02
API 527 Seat Tightness Test
Understand seat-leakage methods, acceptance criteria and report inputs.
03
About ZOBAI
Review company background, manufacturing context and technical support channels.
04
Safety Valve Knowledge Center
Continue to selection, sizing, back-pressure, installation and testing resources.
05
API 520 Safety Valve Sizing
Connect sizing calculations and certified capacity with the required calculation package.
06
Ask an Engineer
Send a document list, datasheet or project specification for review.
››› FAQ
Common questions about safety valve certificates and reports
No. The applicable package depends on the valve design, materials, standard, inspection scope, project specification and purchase order. Confirm required documents before quotation or order release.
Some public literature may be downloadable, but controlled certificates and project-specific reports may require product, order or project verification. Use the contact page to request the applicable original file.
Show the exact title, issuer, number, date or revision, certified entity, product scope, referenced standard and method for requesting the controlled original.
A type test validates a defined design or product range under stated conditions. A routine report records tests performed on a specific production valve, tag, serial number or order item.
They should be traceable through component identification, material grade, heat or batch number and manufacturing records. The required traceability level should be specified in the purchase order.
Depending on the project, buyers may request set-pressure calibration, shell pressure test, seat-tightness test, material certificates, inspection release records, approved drawings, datasheets and sizing or certified-capacity documentation.
Need a certificate package for a quotation or existing order?
Send the project document list, valve data and order reference. ZOBAI can identify which controlled certificates and test reports are applicable and which requirements must be confirmed before quotation.