Description
The ARI-STEVI 471 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 – 250 m³/h. Compatible with: Pneumatic / Electric. This 1.4581 Stainless Steel body version is rated to PN40 DN100 with Straight Through (Bellows Seal) configuration, suitable for Chemical, Aggressive Media, Acids.
PRODUCT SPECIFICATIONS
Figure Number: Fig. 55.471
ARI Part Number: 554710100G1
Series: STEVI Pro 471
Pressure Rating: PN 40
Nominal Diameter: DN 100
Body Material: 1.4581 Stainless Steel
End Connection: Flanged End (DIN EN 1092)
Design / Form: Straight Through (Bellows Seal)
Application: Chemical, Aggressive Media, Acids
Temperature Range: -60 to 450 °C
Performance: Kvs 0.1 – 250 m³/h
Compatible Actuator: Pneumatic / Electric
Net Weight: 53 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: 554710100G1.
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/470001-2.pdf