Electric pneumatic control valve installation should pay attention to what?
by:AIRWOLF2020-10-15
Electric pneumatic control valve pneumatic control valve is used in a kind of very common, pneumatic control valve is the final control element is very widely used model.
In the modern factory automatic control plays a very important role.
The correct use of makes the service life of electric pneumatic regulator increases greatly.
Below small make up take you to understand the installation using the matters needing attention.
Proper use and maintenance of electric pneumatic control valve not only can improve the reliability of the process control, also can increase the service life of electric pneumatic control valve, saving energy and reducing consumption has a significant economic benefits to the enterprise.
Pneumatic control valve in use at the scene, many are often not because quality caused by the pneumatic - valve itself, but rather that caused by improper use of pneumatic control valve installation, such as installation environment, installation position and direction due to reasons such as caused by improper or line is not clean.
因此电动气动调节阀在安装使用时要注意以下几方面:(
1)
Pneumatic - valve belongs to the field instruments for environmental temperature should be in 25 ~ 60 ℃, relative humidity 95% or less.
If it is installed in the open air or high temperature applications, waterproof, cooling measures should be taken.
Where there is the source to stay away from source or increase the antivibration measures.
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2)
Pneumatic control valve should be installed vertically, commonly special circumstances can tilt, such as the Angle is very big, or too much weight on the valve when the valve itself should increase support protection.
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3)
Installation of pneumatic control valve pipe generally do not too high above the ground or floor, height is greater than 2 m in pipe should try to set up the platform, facilitate the handwheel operation and easy maintenance.
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4)
Pneumatic control valve before installation for pipeline cleaning, eliminate dirt and welding slag.
After installation, to ensure that no residue in the body, should also again to the valve and clean, the access into the medium should make all open valve, in order to avoid impurity stuck.
After using the handwheel institutions, should be restored to the original neutral position.
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5)
In order to make the pneumatic control valve in the event of a fault or repair can continue to make the production process, under the condition of pneumatic control valve should add by-pass pipe, at the same time also should pay special attention to, the installation of the pneumatic control valve position whether accord with the requirement of technological process.
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6)
Electrical part of the electric pneumatic valve installation shall be in accordance with the relevant requirements for electrical equipment construction.
So flameproof products should be according to the explosive dangerous location electrical equipment installation specification requirements for installation.
Such as the scene copper-clad SBH type or other six or eight core, outer diameter for Φ 11.
About 3 mm rubber cable installation.
In the use of maintenance, in the explosive place the flame-proof surface electricity open repair and shall be strictly forbidden to pry.
At the same time in dismantling the harm upon or scratch flame-proof surface, after repair to be reverted to the original state of flame-proof requirement.
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7)
Actuator reducer lubrication, should be paid attention to after repairing and low speed motor generally don't cheer unpick and wash.
After assembly also should check whether the valve position and the opening of the valve position indicator.