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Installation attention of Liaoning valve
- Categories:Industry Knowledge
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- Time of issue:2016-01-16 14:58
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(Summary description)InstallationattentionofLiaoningvalve Globevalves,throttlevalves,pressurereducingvalves,checkvalvesandothervalvesarealldirectional.Iftheyareinstalledupsidedown,thethrottlevalvewillaffecttheuseeffectand
Installation attention of Liaoning valve
(Summary description)InstallationattentionofLiaoningvalve Globevalves,throttlevalves,pressurereducingvalves,checkvalvesandothervalvesarealldirectional.Iftheyareinstalledupsidedown,thethrottlevalvewillaffecttheuseeffectand
- Categories:Industry Knowledge
- Author:
- Origin:
- Time of issue:2016-01-16 14:58
- Views:
Information
Installation attention of Liaoning valve
Globe valves, throttle valves, pressure reducing valves, check valves and other valves are all directional. If they are installed upside down, the throttle valve will affect the use effect and life; the pressure reducing valve will not work at all, and the check valve will even Cause danger.
Generally, valves have direction signs on the valve body; if not, they should be correctly identified according to the working principle of the valve.
The valve cavity of the shut-off valve is asymmetrical left and right. The fluid must pass through the valve port from bottom to top, so that the fluid resistance is small (determined by the shape), and the opening is labor-saving (due to the upward pressure of the medium). . This is the reason why the globe valve cannot be reversed. Other valves also have their own characteristics.
The location of the valve installation must be convenient for operation; even if the installation is temporarily difficult, it is necessary to consider the long-term work of the operator.
It is best to keep the valve handwheel flush with the chest (usually 1.2 meters away from the operating floor), so that it is easier to open and close the valve. The hand wheel of the floor valve should be upwards, do not tilt, to avoid awkward operation. The valve of the wall machine and the equipment should also leave room for the operator to stand. It is necessary to avoid operating from the sky, especially acid and alkali, toxic media, etc., otherwise it is very unsafe.
Do not install the gate valve upside down (that is, the handwheel is downward), otherwise the medium will remain in the valve cover space for a long time, which will easily corrode the valve stem, and it is contraindicated by certain process requirements. At the same time, it is extremely inconvenient to replace the packing.
1. The pressure reducing valve should be installed upright on a horizontal pipeline, and not inclined in all directions.
2. As for the lift check valve, make sure that its valve flap is vertical when installing, so that it can be lifted flexibly.
3. For the swing check valve, ensure that its pin shaft is level when installing, so that it can swing flexibly.
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