Type of ports – pipe thread, o-ring boss straight threat, 4 bolt flange – this will be for all sections
Inlet relief, or inlet relief plug (no relief)
Work Sections
Application Spool Selection
Cylinder type spool – a and b work ports are blocked in the neutral position.
Motor type spool – a and b work ports are open to the tank passage in the neutral position.
Single acting cylinder spool – a port is blocked in neutral and there is no b port.
Spool Position Control
3 position spring return to neutral position.
Detent in 3 positions.
Rotary friction detent variable from A position through B position.
Spool Actuators
Manual lever metering.
Rotary lever metering.
Hydraulic pressure actuation.
-On or -off
Proportional pressure metering.
Solenoid controlled/pressure actuated.
Air pressure actuation
-On or -off
Proportional pressure metering.
Solenoid controlled/pressure actuated.
Outlet section
Standard – oil flow directed to the tank when spools are in the neutral and the A or B position.
Power beyond – oil flow is directed to power beyond port when all spools are in the neutral position and return oil flow is directed to the tank port when the spools are in the A or B position.
