Hydraulics - Seafish
Hydraulics - Seafish
Hydraulics - Seafish
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14<br />
Out<br />
Out<br />
Globe valve<br />
Figure 17.<br />
Sometimes the flow of oil is controlled by an orifice. This is a<br />
small bore restriction in the pipe line as shown in Figure 19.<br />
restriction<br />
Flow in.<br />
Out<br />
Figure 19.<br />
The reduction in flow caused by a restriction orifice also<br />
causes a drop in pressure in the line after the restriction.<br />
Directional control valves can also regulate the flow of oil if they<br />
are only partially opened. This causes a restriction and the flow<br />
of oil is reduced.<br />
Now for two SAQ's about valves.<br />
<strong>Seafish</strong> Open Learning
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