The correct installation and correct selection of control valve is also important. Installation quality control systems related to operating performance, control quality, safety and cost, it should pay attention to. Control valve installed in the field, on fire, explosion, leakage prevention, higher demands, control valve noise pollution are also increasingly subject to the relevant departments attention.
A, control valve installation provisions:
General installation:
1, the control valve should be installed in accordance with the design drawings and design documents.
2, control rules, valve installation should follow the relevant national standards for example, construction and installation engineering quality inspection and evaluation standards, industrial automation instrument construction and acceptance specifications, electrical equipment installation engineering construction and acceptance specification etc..
3, control valve install the required equipment, auxiliary equipment and materials shall be in accordance with the relevant provisions of existing national or ministerial standards.
Two note, installation:
Control valve should be installed note easy operation, safety and standardization considerations. The specific contents are as follows.
(a), the control valve installation position and orientation:
1, in accordance with the design drawings and design documents, the installation position should have enough operation space for the installation, operation, and maintenance; its position shall not be installed in vibration, humidity, susceptible to mechanical injury, with strong electromagnetic interference, high temperature, the temperature changes and corrosive gas places; pneumatic three - valve installation should be firm, smooth; the installation position should enable the actuator control valve in the upper part of adjusting mechanism, Figure 6 - 8 shows straight stroke control valve installation position. Among them, there is the preferred location of the position, the second choice of location.
2, pneumatic angle seat valve fluid flow control valve within the fluid flow control valve should be marked with the arrow on the valve body the same. Under special circumstances, may be subject to these restrictions.
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