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Pressure drop characteristics (viscosity 36 mm 2 /s (cSt))<br />
DEH16<br />
Amount of pressure drop<br />
(MPa)<br />
Spool type 05, 18<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
0.4<br />
0.3<br />
0.2<br />
0.1<br />
0<br />
30<br />
DEH22<br />
60<br />
90<br />
Flow rate<br />
(L/min)<br />
Spool type 18<br />
B→A<br />
B→T<br />
A→T<br />
P→A<br />
P→B<br />
Spool type 18<br />
P→A<br />
120 150 180<br />
Amount of pressure drop<br />
(MPa)<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
0.4<br />
0.3<br />
0.2<br />
0.1<br />
0<br />
Spool type 07, 20<br />
30 60<br />
90<br />
Flow rate<br />
(L/min)<br />
120<br />
150<br />
P→T<br />
B→T<br />
A→T<br />
P→A<br />
P→B<br />
180<br />
Amount of pressure drop<br />
(MPa)<br />
0.8<br />
0.7<br />
0.6<br />
0.5<br />
0.4<br />
0.3<br />
0.2<br />
0.1<br />
0<br />
30 60<br />
90<br />
Flow rate<br />
(L/min)<br />
Spool type 19<br />
P→T B→A<br />
120<br />
150<br />
180<br />
Other<br />
spool type<br />
Solenoid controlled pilot operated directional valve (1)<br />
Amount of pressure drop<br />
(MPa)<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
Spool type 05, 18, 23<br />
Spool type 18<br />
B→A<br />
0 50 <strong>10</strong>0 150 200 250 300 350 400 450<br />
Flow rate<br />
(L/min)<br />
B→T<br />
P→A<br />
A→T<br />
P→B<br />
Amount of pressure drop<br />
(MPa)<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
Spool type 07, 20<br />
0 50 <strong>10</strong>0 150 200 250 300 350 400 450<br />
Flow rate<br />
(L/min)<br />
P→T<br />
B→T<br />
P→A<br />
A→T<br />
P→B<br />
Amount of pressure drop<br />
(MPa)<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
Spool type 19<br />
P→T B→A<br />
0 50 <strong>10</strong>0 150 200 250 300 350 400 450<br />
Flow rate<br />
(L/min)<br />
Other<br />
spool type<br />
DEH32<br />
Amount of pressure drop<br />
(MPa)<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
Spool type 05, 18, 23<br />
Spool type 18<br />
B→A<br />
B→T<br />
A→T<br />
P→A<br />
P→B<br />
Amount of pressure drop<br />
(MPa)<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
Spool type 07, 20<br />
B→T<br />
P→T<br />
P→A<br />
A→T<br />
P→B<br />
Amount of pressure drop<br />
(MPa)<br />
1.8<br />
1.6<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
Spool type 19<br />
P→T B→A<br />
Other<br />
spool type<br />
0 120 240 360 480 600 720 840 960 1<strong>10</strong>0<br />
Flow rate<br />
(L/min)<br />
0 120 240 360 480 600 720 840 960 1<strong>10</strong>0<br />
Flow rate<br />
(L/min)<br />
0 120 240 360 480 600 720 840 960 1<strong>10</strong>0<br />
Flow rate<br />
(L/min)<br />
Pilot valve<br />
Pilot valve type<br />
The pilot valve uses the following solenoid operated directional valve.<br />
Nominal<br />
dimension<br />
Main valve<br />
Pilot valve<br />
Type Type Spool type Hydraulic symbols<br />
2 position valve spring offset type<br />
2 position valve hydraulic offset type<br />
04<br />
Spool type04<br />
16<br />
3 position valve spring center type<br />
DE 6<br />
<strong>10</strong><br />
3 position valve hydraulic center type<br />
13<br />
Spool type<strong>10</strong><br />
2 position valve spring offset type<br />
2 position valve hydraulic offset type<br />
04<br />
Spool type13<br />
22<br />
32<br />
3 position valve spring center type<br />
DE<strong>10</strong><br />
<strong>10</strong><br />
3 position valve hydraulic center type<br />
13<br />
* For the pilot valve specifications, refer to the section of the type number index “DE6” and “DE<strong>10</strong>”.<br />
1-25
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