| Version | Date | Description |
| 3.2 | 4-08-19 | Corrected valve identification and piping selection errors in Drop/Flow calculation forms. This is a catch up from 3.0 changes. |
| 3.1 | 3-28-19 | Improved validation in the Single Valve Pressure Drop page RE saturated Steam. To improve future bug identification, un-trapped errors now spawn the standard error page. |
| 3.0 | 2-26-19 | Improved validation RE materials. Worthy of a new version, introduced a better page save state scheme which will end timeout issues (RE version 1.7). |
| 2.7 | 12-14-17 | Corrected rating table to stop at B16.34 temperature limit (e.g., for F347). |
| 2.6 | 08-18-17 | Updated to B16.34, 2017 Ed. Added Size 10 to 16 class 2500 forged flite-flow valves. |
| 2.5 | 01-20-17 | Valve Options Page bug fixes RE F316, F316L, false positive valve list when no pressure class is applicable. |
| 2.4 | 08-12-16 | Disabled viewing of valve drawings until such time as they are updated to the current state. Removed Size 3 and 4 Flite-Flow valves with intermediate Pressure Classes equaling 400, 700, 1100, 1800, and 2900. |
| 2.3 | 06-15-16 | Fixed required pressure class and valve list inconsistencies in ValveOptions page. |
| 2.2 | 03-08-16 | Improved robustness and corrected valve labels in Two Stop Valves in Series page. Fixed inlet/outlet pipe I.D. verification for venturi valves. Fixed figure link submit problem on ValveSelection page. |
| 2.1 | 08-21-15 | Added size 2 and 2.5 SWE Continuous Blowdown valves for orifices #2 through #10. Fixed issues with the display of flow coefficient curves. |
| 2.0 | 04-15-15 | Improved database access stability. EValSz is now compatible with all major browsers. |
| 1.8 | 03-05-15 | Addressed compatibility automatically for IE 10 and above. |
| 1.7 | 12-08-14 | Added automatic page refresh every 15 minutes to avoid session timeouts. |
| 1.6 | 5-28-14 | Improved data validation messages. Changed pressure-temperature rating rounding to be consistent with the catalog. |
| 1.5 | 3-20-14 | Updated to ANSY B16.34, 2013 Edition, but no data changes are required. Fixed I.D. drop-down bugs RE validation and size change. |
| 1.4 | 3-28-13 | In ValveOptions.aspx, added 'Rating Tables' Option, valves are now sorted by figure, now non-default materials are processed only upon selection change, and corrected calculation of metric-derived pressure class for T < 100OC. Enabled venturi option for gate valves in pressure drop calculations. Corrected 'SER Class' to 'Series' in calculation forms. |
| 1.3 | 4-20-12 | Ratings for the Limited Pressure Class are now derived directly from special class tables (with 'y' interpolated conventionally), rather than from Flowserve-derived tables. Added validation of flow data availability. Corrected metric special class pressure rating table for 347 & 347H. Corrected units issues in ValveFlowOptions.aspx. |
| 1.2 | 12-10-11 | In ValveDropOptions.aspx, ValveDropOptions2.aspx, and ValveFlowOptions.aspx, corrected connecting piping options behavior regarding NPS selection. Corrected Cv calculation error when ValveFlowOptions.aspx was the session's first accessed form. |
| 1.1 | 9-6-11 | In ValveDropOptions.aspx, added missing Cv and Fp for 100% open and added turndown ratio for disk skirted valves. Corrected data persistence from ValveOptions.aspx to other forms. Added catalog page links in calculation pages. |
| 1.0 | 8-3-11 | Released the initial issue to replace and enhance previous versions, which were available per CD or download from Flowserve.com |