The ARI-STEVI 448 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 – 160 m³/h. Compatible with: Pneumatic (DP30-34) / Electric (PREMIO-Plus 2G 2.2-15kN). This EN-JL1040 Cast Iron body version is rated to PN16 DN50 with Straight Through (V-Ring) configuration, suitable for HVAC, Hot Water, Cooling Water.
PRODUCT SPECIFICATIONS
Figure Number: Fig. 12.448
ARI Part Number: 124480050G1
Series: STEVI Vario 448
Pressure Rating: PN 16
Nominal Diameter: DN 50
Body Material: EN-JL1040 Cast Iron
End Connection: Flanged End (DIN EN 1092)
Design / Form: Straight Through (V-Ring)
Application: HVAC, Hot Water, Cooling Water
Temperature Range: -10 to 220 °C
Performance: Kvs 0.1 – 160 m³/h
Compatible Actuator: Pneumatic (DP30-34) / Electric (PREMIO-Plus 2G 2.2-15kN)
Net Weight: 17.0 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).
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/448001-2.pdf