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07

2017-07

What is the principle of valve positioner

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2017-07-07

The principle of the valve positioner: the feedback lever feedback valve opening position changes, when the electromagnetic torque generated by the input signal is equal to the torque generated by the positioner feedback system,

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07

2017-07

Valve positioner selection guide

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2017-07-11

The valve positioner (also known as: pneumatic valve positioner) is the main accessory of the control valve. It is usually used in conjunction with the pneumatic control valve. It receives the output signal of the regulator,

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07

2017-07

How to position the valve of the valve positioner

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2017-07-18

Valve positioners are classified into pneumatic valve positioners, electrical valve positioners and intelligent valve positioners according to input signals. The input signal of the pneumatic valve positioner is a standard gas signal, for example,

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07

2017-07

How to choose a valve positioner

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2017-07-20

In many control applications, the valve positioner is one of the most important accessories for control valves. Especially for a specific application, if you want to choose the most suitable valve positioner, you should pay attention to the following factors:

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07

2017-07

Introduction to the role of electric valve positioner

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2017-07-22

The electric valve positioner is the main accessory of the control valve. It takes the stem displacement signal as the input feedback measurement signal, and uses the controller output signal as the setting signal for comparison.

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07

2017-07

What are the classifications of valve positioners

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2017-07-25

According to the direction of action, it can be divided into one-way valve positioner and two-way valve positioner. When the one-way valve positioner is used in a piston type actuator, the valve positioner only works in one direction, and the two-way valve positioner acts on both sides of the cylinder of the piston type actuator and works from two directions.

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