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Parker Hannifin Corporation
Open-Center Directional Control Valve
VO40
Catalog HY17-8505/UK
191.0 (7.51)
27.0
(1.06)
80.9
(3.19)
15.0
(0.59)
87.0 (3.42)
92.0 (3.62)
20°
A = 76.0 (3.00) + 32.0 (1.26) x No. WORK STATIONS
B = 32.0 (1.26) + 32.0 (1.26) x No. WORK STATIONS
15°
15°
132.7
(5.23)
15°
15°
207.5
(8.16)
32.0
(1.26)
32.0
(1.26)
32.0
(1.26)
9.4±0.4
(0.37±0.01)
70.0 (2.76)
40.0 (1.57)
213.6
(8.41)
70.0
(2.76)
140.0
(5.51)
161.8
(6.37)
25.0
(0.98)
A
B
B
Inch equivalents for millimeter dimensions are shown in (**)
Assembly
Spool Stroke of Work Sections
3-Position Spool
4-Position Spool
(Float)
15°
15°
10°
15°
15°
25.0
(0.98)
9.5
(0.37)
FLOAT STROKE
5.5
(0.22)
5.5
(0.22)
114.2 (4.50)
5.5
(0.22)
5.5
(0.22)
84.0 (3.31)
STROKE STROKE
STROKESTROKE
25.0
(0.98)
Dimensions
US