Description
The ARI-STEVI 425 is a precision shaft-guided control valve engineered for accurate flow modulation in steam, hot water, thermal oil and process service. The parabolic plug delivers equal-percentage characteristic with leakage class IV per ANSI/FCI 70-2. Kvs 0.1 – 25 m³/h. Compatible with: Electric (Smart 1.5). This EN-JS1049 Nodular Iron body version is rated to PN16 DN25 with Straight Through configuration, suitable for HVAC, Hot Water, Cooling Water.
PRODUCT SPECIFICATIONS
Figure Number: Fig. 22.425
ARI Part Number: 224250025G1
Series: STEVI Smart 425
Pressure Rating: PN 16
Nominal Diameter: DN 25
Body Material: EN-JS1049 Nodular Iron
End Connection: Flanged End (DIN EN 1092)
Design / Form: Straight Through
Application: HVAC, Hot Water, Cooling Water
Temperature Range: -10 to 250 °C
Performance: Kvs 0.1 – 25 m³/h
Compatible Actuator: Electric (Smart 1.5)
Net Weight: 7.0 kg
VENDOR & COMPLIANCE
Vendor: ARI Armaturen (Albert Richter GmbH & Co. KG, Germany)
Standards: DIN EN 1092 flange dimensions; PED 2014/68/EU certified; EN 13709 globe valves; EN ISO 15848-1 TA-Luft (fugitive emissions where applicable).
STOCK STATUS: Available on Order (factory lead time approximately 8-10 weeks). When requesting a quotation, please reference ARI Part Number: 224250025G1.
OFFICIAL TECHNICAL DATASHEET
For full technical data including Kvs tables, dimensions, pressure-temperature limits and material certificates, download the official ARI datasheet: https://www.ari-armaturen.com/_appl/files_tb/files/425001-2.pdf