Pneumatic single seat control valve_6 points application precautions:
Time: 2019-05-14 11:43:19 Source: Yonglong Valve Reading: zero second
Single-seat pneumatic control valve _ 6 application precautions:
The pneumatic single seat regulating valve is composed of a pneumatic multi spring diaphragm actuator and a low flow resistance single seat valve. The new actuator has a high bottom, low weight, simple installation and calibration, compact valve body structure, smooth flow passage, and large flow coefficient.
In order to achieve interchangeability, pneumatic single seat regulating valves produced by different manufacturers with the same size and specification can be interchanged, so that users do not have to spend a lot of time in selecting manufacturers. In order to achieve interoperability, pneumatic single seat regulating valves produced by different manufacturers should be able to work together with pneumatic single seat regulating valves of other manufacturers, without signal mismatch or impedance mismatch.
Standardized diagnostic software and other auxiliary software enable pneumatic single seat control valves of different manufacturers to diagnose the operating status and analyze the operating data. Standardized selection procedure. The selection of pneumatic single seat regulating valve is still a problem of great concern to automatic control designers. The standardized calculation program can correctly calculate the flow coefficient of the required pneumatic single seat regulating valve according to the data provided by the process, determine the piping and select the appropriate valve body, valve core and valve trim materials, etc., so as to standardize the design process and improve the design quality.
Smaller. In order to reduce the weight of pneumatic single seat regulating valve and facilitate transportation, installation and maintenance, the following measures are adopted for the refinement and miniaturization of pneumatic single seat regulating valve.
6 points for application of pneumatic single seat regulating valve:
1. It shall be vertically installed on the horizontal pipeline. In special circumstances, when horizontal or inclined installation is required, it shall be generally supported. The circular plate installed on the wall of the incubator shall be parallel to the wall of the incubator.
2. It shall be installed close to the ground or floor for maintenance and overhaul. For those equipped with positioner or hand wheel mechanism, it shall ensure observation, adjustment, operation and convenience.
3. Generally, bypass pipeline is set to switch to manual operation in case of failure or maintenance of automatic control system, so as not to stop production.
4. When the handwheel mechanism is installed, manual operation can also be omitted when the bypass pipeline is installed, and it can also be used to limit the opening. When it is out of use, the hand wheel mechanism must be restored to the original neutral position to facilitate the normal operation of the automatic control system.
5. When installing the pneumatic control valve, the medium flow direction shall be consistent with the indicated direction of the valve body.
6. Before installation, the pipeline shall be cleaned of dirt and welding slag. After installation, make it fully open, clean the pipeline, etc., and test the tightness of each connection.
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