销售VICKERS比例阀功率放大器

销售VICKERS比例阀功率放大器

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This procedure may also be applied to

the EEA-PAM-5**-C-30 and partially to

the EEA-PAM-5**-B-30. Refer to Vickers

rate will increase or decrease resulting

in acceleration or deceleration control of

the hydraulic actuator and its workingload.

voltage into the amplifier. The greater

the current to the solenoid coil, the

greater will be the valve spool

displacement (travel) and oil flow

through the valve. By controlling the rate

of current increase or decrease, the

spool displacement or valve opening

valves. A single proportional solenoid

valve can replace several conventional

valves in a control system. Deceleration

valve, acceleration valve, flow controls

and solenoid switching valve functions

are all packaged in one proportional

valve envelope. Smaller manifolds and

fewer hydraulic interconnecting lines are

needed. Remote electric, programmable

This document does not deal with valve

sizing. However, it should be recognized

that proper sizing will directly affect the

control of acceleration and deceleration.

Select the smallest valve size possible

and the smallest spool size within that

valve size. This results in pressure drop

through the valve that exceeds levels

traditionally experienced with on-off

solenoid valves. Smooth speed change

transitions are obtained as compared to

the high shock with on-off solenoid

catalog GB-C-2007C for more detailed

information on these power amplifiers.

This is an easy-to-use procedure for

anyone with a little understanding of

how proportional valves work.

Proportional valve solenoids are current

controlled. This current is usually

regulated by varying the command

signals to the amplifier controls all of the

above functions.above functions.

销售VICKERS比例阀功率放大器