DG17V-3 60 Series Lever operatored directional valves
These valves are available in an NFPA D03 interface. These valves are rated at flows to 75 l/min (20 USgpm) and 350 bar (5000 psi) maximum pressure. Roller cam, plunger, spring offset, detented, spring centered, knob or lever operated models are available.
Feature and benefits
High pressure and flow capability for maximum cost–effectiveness
Low head loss to minimize power loss
Low–shock characteristics to maximize machine life
Choice of five types of control to satisfy applications where electrical control is not appropriate
DG17/20/21 models must be released from actuated positions, without restriction to ensure proper spring return.
Manual lever and cam operations must be released from their actuated positions, without any restrictions to spring return. Cam operated directional control valve installation recommendations:
Maximum cam angle 35°
Cam travel for dead band of 9° 30’ on either side of center for closed center spools for 35° cam
This dead band should be taken into consideration when designing cam and system circuits
Cam should not drive roller at its vertical centerline to avoid any side loading on roller lever mechanism