Plastic valves are increasingly valued in modern industrial applications. Their lightweight, corrosion-resistant and easy-to-process characteristics make them the preferred components in many industrial fields. However, in order to ensure the best performance and long-term stable operation of plastic valves, the choice of installation location is particularly important.
Basic requirements for installation location
Convenience of operation and maintenance
The installation location of plastic valves must be convenient for operators to perform daily operations and maintenance. The handwheel or handle of the valve should be consistent with the operator's chest, usually at a height of about 1.2 meters from the ground, so as to facilitate opening and closing operations and reduce physical exertion during operation. For floor-standing valves, the handwheel should be installed upward to avoid tilting and causing inconvenience in operation. At the same time, sufficient space should be left around the valve to facilitate maintenance and inspection when necessary.
Avoid harsh environments
Plastic valves should be installed as far as possible in environments with high temperature, low temperature, humidity, strong corrosiveness or explosive gases. These harsh environments may cause damage to the valve and significantly reduce its service life. If it is necessary to install in these environments, appropriate protective measures should be taken, such as heat preservation, cold preservation and explosion protection, to ensure the safety and stable operation of the valve.
Consideration of fluid flow direction
When installing plastic valves, the flow direction of the fluid is an important consideration. For directional valves, such as check valves and pressure reducing valves, they must be installed in the direction indicated by the arrow on the valve to ensure smooth flow of the fluid. In addition, avoid installing the valve in a position where the fluid flow direction changes sharply to reduce fluid resistance and wear, thereby extending the service life of the valve.
Convenience of observation and monitoring
The installation position of the valve should be convenient for operators to observe and monitor its operating status. For valves that require frequent inspections, such as safety valves and pressure reducing valves, it is recommended to install them in a position that is easy to observe and approach. At the same time, for valves that require remote monitoring, corresponding sensors and control systems must be equipped to achieve real-time monitoring and management.
Comply with the requirements of the process flow
The installation position of the plastic valve should be consistent with the requirements of the process flow. In the process flow, valves are usually used to control parameters such as fluid flow, pressure and temperature. Therefore, when installing the valve, it is necessary to ensure its coordination with other equipment in the process flow to achieve the best process effect and system efficiency.
Specific requirements for installation location
Valves on horizontal pipes
For plastic valves installed on horizontal pipes, the valve stem direction should be kept vertically upward or horizontal. The vertical upward valve stem design is convenient for operation and maintenance, while preventing the medium from being retained in the valve cover for a long time and causing corrosion. Horizontally installed valves must ensure that the valve stem is not tilted to avoid affecting the convenience of operation and the normal use of the valve.
Valves on vertical pipes
When installing plastic valves on vertical pipes, the direction of the valve stem should be adjusted according to the characteristics of the medium. If gas or light liquid flows in the pipe, the valve stem can be installed upward or downward. For heavy liquids or media containing solid particles, the valve stem should be installed upward to prevent the medium from causing impact and wear on the valve.
Valves on pipes in rows
Plastic valves installed on pipes in rows should be centrally arranged in a position that is convenient for operation and maintenance, and consider setting up an operating platform and ladder to ensure that operators can easily perform daily inspections and repairs.
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