About
About this tool
Engineering decision-support for manual & control valve selection in process piping applications.
The Valve Selection Guide helps process and piping engineers converge quickly on a defensible valve specification — body, trim, seat, end-connection, rating and special service requirements — using the rules in API 615, ASME B16.5 / B16.34 and supporting standards.
All recommendations are derived live from your inputs. Every rule cites the standard or engineering basis behind it so the choice can be reviewed and challenged.
Outputs are generated for engineering screening and decision support only. Final responsibility for standards compliance, engineering judgment, specification verification, and approved project use remains with the user organization and qualified reviewing engineer.
This app references standards by name and short citation only. It is not an official standards publication and does not replace ASME, API, IEC, ISA, ISO, MSS, NACE, ASTM, or other licensed standards. Users must validate all final selections against licensed/current standards and project specifications.
Built-in data and rules are screening aids. User-imported standards datasets are treated as user-owned/user-authorized data, and the importing organization remains responsible for licensing, accuracy, approval, and continued validity.
Not production-approved yet
This build is suitable for screening and internal engineering review. It must not be used as final authority for procurement, fabrication, construction, or safety decisions until engineering data, recommendations, exports, and accountability roles are reviewed and signed off.
- App owner
- Nosa Imasuen
- Application maintainer
- Nosa Imasuen
- Support contact
- nimasuen@gmail.com
- Engineering authority
- To be assigned before controlled engineering or production use
- Standards data steward
- User organization / licensed table owner
- Independent checker
- To be assigned before procurement or fabrication use
- Legal / license owner
- To be assigned before external distribution
Production release requires a named responsible engineer, data steward, maintainer, support path, legal/license owner, and independent checker. User-supplied ASME tables remain the responsibility of the organization that imports and approves them.
This app references standards by name and short citation only. It is not an official standards publication and does not replace ASME, API, IEC, ISA, ISO, MSS, NACE, ASTM, or other licensed standards. Users must validate all final selections against licensed/current standards and project specifications.
Built-in data and rules are screening aids. User-imported standards datasets are treated as user-owned/user-authorized data, and the importing organization remains responsible for licensing, accuracy, approval, and continued validity.
- Valve type selection by service, function, size and class
- Body / trim / seat material selection per ASME B16.34 & NACE MR0175
- End-connection & rating with ASME B16.5 P-T validation
- Control valve sizing per IEC 60534-2-1 (liquid & gas)
- Special-service checks: sour, cryogenic, fire-safe, fugitive emissions
- Datasheet export (HTML, Excel, print-to-PDF)
- API 615
- API 598
- API 607 / 6FA
- API 609
- API 600 / 602 / 603
- API 6D
- ASME B16.5
- ASME B16.34
- ASME B31.3
- IEC 60534
- ISA 75.01
- NACE MR0175 / ISO 15156
- ISO 15848-1
- EN 12266
- MSS SP-25 / SP-44
Decision-support tool only
Outputs are generated for engineering screening and decision support only. Final responsibility for standards compliance, engineering judgment, specification verification, and approved project use remains with the user organization and qualified reviewing engineer.
Engineering Decision Support Tool - Screening / Internal Review Use unless independently validated.
Outputs are generated for engineering screening and decision support only. Final responsibility for standards compliance, engineering judgment, specification verification, and approved project use remains with the user organization and qualified reviewing engineer.