How to use the Valve Selection Guide

Open the Selection wizard and fill in the project, line and tag identifiers. Use Load Sample Data to try a realistic oil & gas case, or Clear All Fields to start fresh.

Enter design pressure and temperature (always design, not operating). Service type and fluid phase drive material class, special-service flags, and ASME B16.5 P-T validation.

Pick the dominant function: isolation, throttling/control, check, blowdown, etc. This is the primary filter on candidate valve types per API 615 §6.

The engine returns a recommended valve type with rationale and cited standards. Alternatives considered (and rejected) are shown so you can challenge the choice.

For control duty, the Sizing stepruns an IEC 60534-2-1 Cv calculation. Enter flow, ΔP, inlet pressure and fluid properties.

Optionally override the valve body size (default = line size) — common for control valves to keep the trim in the 20–80 % opening range. Reducer notes are flagged automatically.

The verdict (PASS / REVIEW / UNDERSIZED) validates the recommended valve against typical full-open Cv at the chosen size.

Body, trim and seat materials are derived from service severity and temperature per ASME B16.34 and NACE MR0175 where applicable. End connection and pressure class are validated against ASME B16.5 P-T tables. Tick all special-service flags (sour, cryo, fire-safe, fugitive) — each adds engineering cautions.

The Report page summarises the selected specification, sizing verdict, alternatives, rationale, ASME checks and warnings. Export to HTML, Excel or print-to-PDF; save the selection to revisit later from Saved selections.

The Reference library lists every standard cited by the engine. Use Settingsto clear data, manage ASME table sets, view release notes, or read the EULA.

The app ships with draft ASME screening data. In Settings, download the ASME rating table template, populate it from tables your organization is licensed to use, then import it back into the app.

Imported tables are staged first. A responsible user must approve the table set before it becomes the active basis for B16.5 pressure-temperature checks, B16.34 body checks, reports, and datasheet exports. Licensing, source accuracy, and approval remain the user's responsibility.

On a supported desktop browser, open Settings and use the desktop installer card to add the app to the computer. Installed access opens in its own app window and caches the current tool for offline screening work.

Offline use does not replace engineering review. Confirm that the active ASME dataset and saved selection state are current before relying on a cached session.