Spool DCV Cover CVC-SDE
The Covers CVC*SDE are designed to hold Polyhydron make 2 port slip-in cartridge valves model CV*** in the cavities machined as per ISO 7368, with built in facility to control the operation of the cartridge valve as under,
Product Description
Refering to the circuits shown below , the built-in Shuttle valve in the cover selects higher of the pilot pressures brought to the cover at its ports X and Z1 and admits it to the port P of the Directional Control Valve mounted on the cover.
In case of use of cover model CVC*SDEA, in de-energised condition of the Sol. Directional control valve mounted on the cover, the port A, which is normally connected to port P through the valve , gets directly connected to the control port C on the cartridge interface, thereby keeping the cartridge valve normally closed . Upon energizing the Solenoid, the control port C gets connected to tank via the Directional Control Valve and therefore the cartridge passage opens. In this configuration of the cover, port B of the Solenoid operated Directional Control Valve is available at port Z2 on the cover for actuation of other cartridge/s.
In case of use of cover model CVC*SDEB, in de-energised condition of the Sol. Directional control valve mounted on the cover , the port B , which is normally connected to port T through the valve, gets directly connected to the control port C on the cartridge interface, thereby keeping the cartridge valve normally opened. Upon energizing the Solenoid, the control port C gets connected to pressure via the Directional Control Valve and therefore the cartridge passage closes. In this configuration of the cover , port A of the Solenoid operated Directional Control Valve is available at port Z2 on the cover for actuation of other cartridge/s
