In the installation of the hydraulic actuator in the valve accessories, it is important to pay attention to the clearance of the hole or the dirt on the sealing ring and its joints.Then pay attention to check that the connection bolts are tightened evenly.
After the hydraulic actuator in the valve accessories is installed,we need to carry out the sealing test and operation test on the liquid.And pay attention to check and maintain by the frequency of your use regularly during use.
In addition, the hydraulic actuator in valve accessories should check the model carefully before installation.The actuator will be installed in any job location, and be careful to consider the convenient performance of the maintenance and operation.The Sealing performance test should be performed before installation.At the same time, it should be noted that more than three no-load switch tests must be carried out to ensure that the spindle rotation is flexible and that the various shaft parts should not have the jam phenomenon.
The installation characteristics of the liquid-actuator in the valve accessories are largely determined that it only applies to some special conditions that are high in the actuator control requirements.It will be used in large power plants or petrochemical plants.
Finally, according to the principle of moment balance valve accessories locators, in going into the bellows 2 signal increases the pressure P1, can make the main lever 3 access around the membrane actuator chamber pressure increases.http://www.dmgcastings.com/