Globe valve, throttle valve, pressure reducing valve, check valve and other valve installation party
CLICLS：418
Globe valve, throttle valve, pressure reducing valve, check valve and other valves are directional, if the throttle valve is installed in reverse, it will affect the use effect and life, if the pressure reducing valve does not work, if the check valve will even cause danger. General valves, direction signs on the valve body; In case there is no, it should be identified correctly according to the working principle of the valve.
The valve chamber of the globe valve is asymmetric, so that the fluid should be passed through the valve port from bottom to top, so that the fluid resistance is small (determined by the shape), open labor saving (due to the medium pressure up), after closing the medium does not press the packing, easy maintenance. This is why the globe valve can not be installed. Other valves have their own characteristics. The position of 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.
The best valve handwheel and chest (generally 1.2 meters away from the operation floor), so that the valve is relatively easy to open and close. Ground valve handwheel should be up, do not tilt, so as to avoid awkward operation. The valve of the wall machine depends on the equipment, but also to leave room for the operator to stand. To avoid the operation of the sky, especially acid and alkali, toxic media, otherwise very unsafe.
Gate valve do not reverse (that is, hand wheel down), otherwise it will make the medium retained in the valve cover space for a long time, easy to corrosion of the stem, and for some process requirements taboo. It is extremely inconvenient to change the packing at the same time.
1, the pressure reducing valve should be installed vertically in the horizontal pipeline, do not tilt in all directions.
2, lifting check valve, installation to ensure that the valve disc vertical, in order to lift flexible.
3, swing check valve, installation to ensure that the pin shaft level, in order to spin flexible.
4, stem gate valve, do not install underground, otherwise due to moisture and corrosion of exposed stem.
