Install the control valve construction considerations

The control valve installed Precautions should be considered easy maneuverability, safety and standardization. The specific contents are as follows.
(1) Control valve mounting position and orientation in accordance with the design drawings and design documents, the installation location should have sufficient room for maneuver for the installation, operation and maintenance; their position should be avoided in vibration, humidity, susceptible to mechanical damage strong electromagnetic interference, high temperature, severe changes in temperature and corrosive gases; installation should be firm, smooth; mounting orientation should be the executive body of the control valve in the upper part of the adjustment mechanism, Figure 6-8 shows a straight trip control valve a variety of mounting orientation.
Wherein the position
1 is the preferred location.
2 is the second choice for the position. If the installation site does not have enough space, optional installation location
3 and
Necessary, measures to prevent leakage. Try not to choose location
Only installed in the vertical pipe control valve has been introduced, should be added boom or support, as shown in Figure 6-9. The rotary control valve valve shaft should be the level of the fluid contained in the dirt does not actively sink to the valve shaft rolling bearing. For ease of operation and maintenance of the control valve should be close to the ground or the floor installation.
(2) to control the flow of fluid within the valve to control the flow of fluid within the valve should be marked with the control valve body arrow consistent. The special circumstances are not subject to the restrictions of this provision.
(3) control valve connected to the control valve is connected to the threaded connection, flange connection and welding connection. Screw connection for small-bore control valves, control valves installed threaded connection, you must also install the removable active connection. Flange connection flange connection and clamp connecting the two nominal diameter of the connecting flanges should take over the diameter of the control valve. Flange also have different pressure levels, the pressure rating of the flange should be consistent with the control valve pressure rating. The flange diameter should be equal to the pipe diameter. The flange surface perpendicular to the pipe axis allowable deviation for the l °. Flange sealing surface should be flush. Flange and pipe coaxial allowable deviation t should
Met:solenoid valve actuator
Where D is the pipe diameter; eve of working conditions, cutting pieces of the inner diameter of the pipe diameter ratio. Flange connection should force
Uniform and appropriate, to avoid local subjected to excessive pressure.
Try to avoid the use of welded connections, removable activities fittings welded connections must be installed at the same time.
Control valve connection should not be inside the connecting pipes lead into a new projection. For example, gaskets, welding seam should not be used in the pipe protruding.3 way air valve