1 The installation position of the control valve should meet the requirements of the process design, and should be close to the one-time indicating instrument, so as to observe the one-time instrument when the bypass valve is operated manually.
2 The control valve shall be arranged on the ground or platform and be convenient for operation and maintenance.
3 The control valve should be installed vertically and vertically in the horizontal pipeline. Under special circumstances, it can be installed horizontally or obliquely, but it must be supported.
4 When the control valve group (including the control valve, bypass valve, cut-off valve and drain valve) is installed on the facade, the control valve shall be installed below the bypass valve. Nominal diameter less than 25mm regulator can also be installed in the bypass above.
5 The clearance between the bottom of the regulator and the floor or platform shall not be less than 4oomm. For anti-installation spool of single-seat and two-seat control valve, should be in the lower part of the valve body to leave a space for the valve core.
6 A clearance of not less than 2mm above the top of the valve diaphragm head shall be provided. Adjust the valve and bypass valve should be arranged up and down the open position.
7 Cut-off valve should use gate valve, bypass valve should use globe valve, but the nominal diameter of the bypass valve is greater than 150mm, can use gate valve, two cut-off valve and regulating valve is not straight layout into a straight line.
8 The low point of the pipeline between the inlet side of the regulator and the shutoff valve upstream of the regulator shall be provided with a drain valve, which may be selected as a gate valve.
9 Medium containing solid particles on the pipe control valve should be arranged with the bypass valve in the same plane or the bypass valve arranged in the control valve below.
10 One of the two supports of the regulating valve group on the low-temperature and high-temperature pipelines shall be a fixed support and the other shall be a sliding support.
11 The regulator shall be installed at ambient temperature not higher than 60 ° C, not lower than -40 ° C, and away from the source of vibration.
12 When there are more control valve groups in one area, the form should be considered consistent, neat, beautiful and easy to operate.
13 When the diameter of the regulating valve and the blocking valve is different, the reducing pipe should be installed close to the regulating chamber.
14 To pay attention to the process of the position of the control valve is no special requirements.
