1 / 1Control Valves
ARI-STEVI Smart 450/451
A three-way flanged control valve for regulating flow between connected circuits.
Operating limits depend on material, size and configuration. Check the pressure–temperature ratings in the relevant technical catalogue for your application.
ARI-Armaturen · ARI-STEVI Smart 450/451
Overview
A three-way flanged control valve for regulating flow between connected circuits.
Consider nominal size, pressure class, fluid, temperature, connection and actuation together. Refer to the technical catalogue for suitable materials and operating limits. Share the fluid, operating pressure and temperature, connection size and standard, and required control function. Include Kv/Kvs for control valves, and condensate load and back pressure for steam traps.
Technical data
| Brands | ARI-Armaturen |
|---|---|
| Series / model | ARI-STEVI Smart 450/451 |
| Nominal diameter | DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN100; DN125; DN150 |
| Pressure class | PN 16; PN 25; PN 40 |
| Body / cover material | EN-JL1040; EN-JS1049; 1.0619+N; 1.4408 |
| Connections | flange |
| Design | 3-way |
| Temperature (by variant) | -10°C - 300°C; -10°C - 350°C; -60°C - 450°C; -60°C - 400°C |
Operating limits depend on material, size and configuration. Check the pressure–temperature ratings in the relevant technical catalogue for your application.
Technical documents 15
Frequently asked questions
How do I select a valve or steam trap?
Share the fluid, operating pressure and temperature, connection size and standard, and required control function. Include Kv/Kvs for control valves, and condensate load and back pressure for steam traps.



