Cartridge Valve Cover
Function W13 - As type W with mounting face for size 03 pilot valve
The shuttle function in combination with a solenoid operated pilot valve is available in cartridge sizes 16 through 63. In each cartridge size, the pilot valve is the DG4V-3 that mounts to the ISO 4401, size 03 (ANSI/B93.7M-D03) interface. There are two functional cover types, W13 and W33, that are applied with a model DG4V-3 pilot valve. The insert used can be either the model D15 (1:1.5 area ratio poppet), or model D20 (1:2 area ratio poppet).
With the solenoid de-energized, Figure 17, the cartridge is shut by the higher of the pressures at X or Z1 . Pilot port Z2 can be used to pilot a second cartridge simultaneously.