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**EATON比例放大板,威格士比例放大板

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产品名称: **EATON比例放大板,威格士比例放大板
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产品展商: 美国VICKERS威格士
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简单介绍

**EATON比例放大板,威格士比例放大板 Figure 4 shows the affect of pressure drop. Non-feedback single-stage curves are shown. Each level of pressure drop has its own flow-gain curve for a given


**EATON比例放大板,威格士比例放大板  的详细介绍
**EATON比例放大板,威格士比例放大板
spool overlap to start opening the flow
path. This percentage varies with valve
type and spool type. It can range from
20% to a little over 30% of spool travel
or on a command voltage basis the
variation is from about 2 volts to a little
over 3 volts.valve type and spool type. At 145 PSI
Figure 3 is a typical flow-gain curve.
Flow is plotted on the vertical axis and
percent of maximum command signal
on the horizontal axis. With 10 volts
applied to pin b6 (Figure 1) and no
adjustments made to the deadband
 Curves shown are for spool types “2”.
These points will vary from valve to
valve, but can be adjusted using the
deadband-compensation feature of the
drive amplifier. For spool types “33” the
curves are similar but flow starts at
slightly higher command signals.
 At other P values and within the
power capacity envelopes, flow rates
approximate to:
compensation, gain or ramp pots, the
valve spool will move to the full open
position allowing maximum oil flow
through the valve. If a lesser command
voltage were applied, for example, 60%
(6 volts) flow would be about 9.0
USgpm. Valve opening is directly
proportional to the input command
voltage to the amplifier.
Note, that it takes about 20% of
command voltage to overcome the valve

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