robust and durable pilot operated directional control valves series D31DW,
D31NW, D*1VW are almost universally applicable and ensure a reliable
operation. A wide variety of spools and options allows to design an
unlimited number of hydraulic circuits.
The pilot operated directional control valves are available in 4 sizes: D31DW (standard) and D31NW (high flow) in NG10/NFPA D05, D41VW in NG16/NFPA D07, D81VW (for port diameter up to 26 mm) and D91VW (for port diameter up to 32 mm) in NG25/NFPA D08 and D111VW in NG32/NFPA D10.
All sizes are optionally available with position control or as explosion-proof version according to ATEX and IECEx.
•Proven robust design that represents our long-term experience in hydraulics
•Wide range of spools-suitable for almost all hydraulic circuits
•High functional limits-low forces resulting in safe operation also at high flow rates
•Low pressure drop-resulting in low energy losses in operation
•Short delivery time-no warehousing necessary
•Optionally with position control
•Optionally without manual override
•Optionally as explosion-proof version
•Suitable for general hydraulic applications
The valves are not only ATEX certified (explosion proof class is Ex e mb II T4 Gb for use in zone 1 and 2) but also equipped with IECEx compliant solenoids which are certified in accordance with IECEx standard for equipment class 2 G. All explosion-proof solenoids are DC design. The valves for AC operate with integrated rectifier.
The minimum pilot pressure must be ensured for all operating conditions of the directional valve. Additionally spools with a P to T connection in the deenergized position need an external pressure supply (external inlet) or an integral check valve.