The ARI-PREDU is a self-actuated pressure reducing valve that automatically maintains a stable downstream (reduced) pressure regardless of upstream variation or flow demand. No external power required — pilot operation uses the medium itself. This EN-JS1049 Nodular Iron model is rated to PN16 DN20 and is suitable for steam, compressed air, industrial gases and clean water service.
PRODUCT SPECIFICATIONS
Figure Number: Fig. 22.701
ARI Part Number: 22701002010
Series: PREDU 701
Pressure Rating: PN 16
Nominal Diameter: DN 20
Body Material: EN-JS1049 Nodular Iron
End Connection: Flanged End (DIN EN 1092)
Design / Form: Pressure Reducing (PREDU)
Application: Steam, Condensate, Hot Water
Temperature Range: -10 to 250 °C
Performance: Kvs 0.25 – 32 m³/h
Compatible Actuator: Self-acting
Net Weight: 16.5 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: 22701002010.
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/701001-2.pdf