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 1.4581 Stainless Steel model is rated to PN40 DN40 and is suitable for steam, compressed air, industrial gases and clean water service.
PRODUCT SPECIFICATIONS
Figure Number: Fig. 55.701
ARI Part Number: 55701004010
Series: PREDU 701
Pressure Rating: PN 40
Nominal Diameter: DN 40
Body Material: 1.4581 Stainless Steel
End Connection: Flanged End (DIN EN 1092)
Design / Form: Pressure Reducing (PREDU)
Application: Chemical, Aggressive Media, Acids
Temperature Range: -10 to 350 °C
Performance: Kvs 0.25 – 32 m³/h
Compatible Actuator: Self-acting
Net Weight: 22.0 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: 55701004010.
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