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electric regulating valve in use at the scene, many are often not because of quality caused by electric regulator itself, but the regulator installation that caused by improper use, such as installation environment, installation position and direction due to reasons such as caused by improper or line is not clean. Therefore electric regulating valve during installation should pay attention to the following aspects: ( 1) Regulator belongs to the field instruments for environmental temperature should be in 25 ~ 60 ℃, relative humidity & le; 95%. 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. （ 2) Regulating 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. （ 3) Install regulator 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. （ 4) Electric control valve before installation for pipeline cleaning, eliminates 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. （ 5) In order to make the valve in case of failure or repair can continue to make the production process, the regulator should add by-pass line. At the same time also should pay special attention to, the regulating valve installation position whether accord with the requirement of technological process. （ 6) Electrical part of the electric control 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 & Phi; 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. （ 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.
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