The type 6521 is not available anymore since 12/31/13. Please contact us regarding a successor product. Type 6521 Print Share Link was copied Buy now Applications & Tools Fluid Calculator × resistApp - Chemical Resistance App × Downloads All All languages User Manuals Description Filesize Language / Country Operating Instructions Type 6521 | 3/2-way-, 5/2 way solenoid valve 1 MB EN,DE / EU Bedienungsanleitung Typ 6521 | 3/2-Wege-Ventil, vorgesteuert 535 kB DE / DE