Direction of the stop valve
Thread Content
Stop valves usually have an indication of the flow direction (arrow) on the valve body, but strict adherence to this during installation is not required in most cases. Discussion: 1. Under what circumstances must it be strict? What problems will arise otherwise? 2. If the fluid in the pipe flows in both directions, how should the installation direction be chosen? Good answers will be rewarded.
1. Under what circumstances must it be strict? What problems will arise otherwise? Experience: If the pipeline allows flow in only one direction, high pressure will be generated; this must be strictly observed, otherwise the seal will not be adequate and severe erosion will occur. 2. If the fluid in the pipe flows in both directions, how should the installation direction be chosen? Experience: Determine the high-pressure direction, then allow fluid to flow from high to low
The installation direction of globe valves must be strictly regulated; it should not be left unregulated. Moreover, globe valves should not be used for two-way flow.
The installation direction of the JIEZ stop valve must be carried out strictly in accordance with the requirements； Check valves should not be used for two-way flow.
A stop valve allows flow from low to high; if the direction is reversed, it will not seal properly and will be difficult to operate.
The stop valve should be installed in accordance with the flow direction indicated on the valve body.
The installation direction of stop valves must be strictly followed, especially under high pressure; otherwise, failures are likely to occur. It is important to develop a habit of proper installation. Is two-way flow better or should we change the model to avoid increased maintenance?
The installation direction of the stop valve must strictly follow the principle of low inlet and high outlet; otherwise, it will not open properly and the seal will not be tight
Since I saw that the stop valve mentioned by LZ has fluid flow from low to high, I wonder what kind of valve has fluid flow from high to low. Are there any corresponding standards or specifications regarding whether a valve should have fluid flow from low to high or from high to low?
It is necessary to strictly adhere to the direction indicated for the markings; different actuation mechanisms are required for situations where the flow enters at a lower pressure and exits at a higher pressure, and vice versa. If the installation is done carelessly and problems arise, the valve manufacturer certainly will not replace the actuation mechanism for you. It is important to train the installers, and it’s also advisable to have the manufacturer’s technicians provide technical support during the installation process.