Parker Hannifin VO40 用户手册

III

Parker Hannifin Corporation

Open-Center Directional Control Valve
VO40

Catalog HY17-8505/UK

Contents

Introduction .............................................................................................................................................................1

Technical Information

General Description ..........................................................................................................................................3

Operation ..........................................................................................................................................................3

Benefits ............................................................................................................................................................3

Specifications ...................................................................................................................................................4

Weights .............................................................................................................................................................4

Connections .....................................................................................................................................................4

Performance Curves .........................................................................................................................................5

Environmental Characteristics ..........................................................................................................................5

Schematic Circuit Types ...................................................................................................................................6

Dimensions ....................................................................................................................................................7-8

Handle Actuation vs. Spool Direction ...............................................................................................................9

Ordering Information

How to Order ..................................................................................................................................................10

General Valve Assembly .................................................................................................................................11

Inlet Cover .................................................................................................................................................12-13

Outlet Cover ..............................................................................................................................................14-15

Work Sections ...........................................................................................................................................16-20

Mid-Inlet ..........................................................................................................................................................21

Assembly Configuration Form ............................................................................................................................22