Standard Valves Hydraulic Pre-fill Valves Data Sheet (PDF) RE 20 485 (Sizes 25...80) RE 20 482 (Sizes 125 to 400) Model SF Pre-fill Valves Hydraulics Application: Pilot operated pre-fill valve (check valve) Key features: For flanged connection (“A”) For tank installation (“B”) As cartridge valve (“K”) Some versions with decompression Download SF Pre-fill Valve Data Sheets Pre-fill valve, Type SFA (Sizes 25...80) Pre-fill valve, Type SF (Sizes 125 to 400) Data Sheet (PDF) RE 20 478 Model ZSF and ZSFW Pre-Fill Valve Hydraulics Application: Hydraulically pilot operated pre-fill valve (check valve) in sandwich plate design Key features: For flanged connection For in-line installation Optional: Unloading via built-on directional valve (type ZSFW) Some versions with HD port and decompression Download ZSF and ZSFW Pre-Fill Valve Data Sheet For more information or to order brochures and catalogs, contact your nearest distributor.