Features:
- Straight-through valves with flanges and various sealing options (special stem seal, gland seal, and bellows seal).
- Maintenance-free operation.
- Soft sealing and metal-sealed versions.
- Digital display for monitoring and control.
- Insulating cap with an integrated dew point barrier.
- Travel limiter and non-rotation lock for improved control.
- Position indicator as standard.
Models:
- ARI-ASTRA® (DN15-200) – Straight-through with special stem seal (grey cast iron)
- ARI-ASTRA® (DN250-500) – Straight-through with gland packing (grey cast iron)
- ARI-ASTRA®Plus (DN15-200) – Straight-through with bellows seal (SG iron)
- ARI-ASTRA®Plus (DN250-400) – Straight-through with gland packing (SG iron)
Materials:
- Body: Grey cast iron (EN-JL1040, EN-GJL-250), SG iron (EN-JS1049, EN-GJS-400-18U-LT)
- Stem: Stainless steel (X20Cr13+QT, 1.4021+QT)
- Sealing: PTFE, EPDM, Pure graphite for packing
Performance & Dimensions:
- Nominal Diameter: From DN15 to DN500 depending on model
- Pressure Rating: PN16, PN25
- Kvs Values: Ranges from 4.5 m³/h (DN15) to 3185 m³/h (DN500)
- Temperature Range:
- For ARI-ASTRA®: From -10°C to +120°C (up to +130°C for short periods)
- For ARI-ASTRA®Plus: From -10°C to +175°C (up to +350°C for some models)
Travel Limitation and Indicators:
- Travel Limiter for all nominal diameters
- Digital display for easy flow control
- Pressure gauge stud (optional for some models)
Applications:
These valves are typically used in:
- Flow regulation for industrial systems such as chemical processing, HVAC, water treatment, and energy systems.
- Temperature and flow management in pipelines.
- Pressure control for various gases, liquids, and steam systems.
Additional Accessories:
- Balancing Instrument ARImetec®-DX for flow and differential pressure measurement in hydraulic systems.
- Sensor device and hand terminal for flow regulation and measurement.
Flange Dimensions & Pressure-Temperature Ratings:
- Flanges conform to DIN EN 1092-2 standard.
- Pressure-temperature ratings vary based on material and temperature, with EN-JL1040 having a maximum of 16 bar at 120°C and EN-JS1049 able to handle 16 bar up to 350°C.