In order to prolong the service life of the valve, the following procedures should be followed to operate and maintain the valve.
1.Embedded fully welded ball valve operation
The valve can be operated regularly to prevent impurity accumulation on the seat or spherical surface, but also to avoid excessive local wear and tear of the seat inlay.
(1)Open and close time requirements.
If the valve switches too fast, the valve will overload. Stem damage; if the switch is too slow, the seat surface will be washed by the medium for a long time. Therefore, the operation time should be kept within an appropriate range. According to experience, the switching time of the valve can control half of the nominal size of the valve, and the upper limit can be estimated to be five times of the nominal size of the valve.
(2)Valve in operation
Valve ball should be fully opened or closed, should not be in a half-open or half-closed position, lest damage to the seat.
2. Daily maintenance of fully welded ball valves
Seat chamber is the most easily polluted area in pipe valves. In order to ensure the free movement of the seat, it should be cleaned once a year. Sealing of wells is regularly checked through drainage nozzles. Valves in auxiliary air pipes are seldom regulated. At least one switch should be used each year and the appropriate amount of grease should be injected to prevent ball and seat adhesion and grinding between the ball and seat. The good technical characteristics of buried fully welded ball valves make the whole gas pipeline integrated, and improve the overall resistance of the valves to stress and geological hazards. Reduce the possibility of air leakage. Valve reliability improves service life and facilitates installation and maintenance.
Because of the particularity of its medium, a few abnormalities of gas welded ball valves are likely to cause leakage problem. Needless to say, the consequence for the gas leak is really severe. So when buying gas welded ball valves, you’d better learn some knowledge about its characteristics so that the quality of the valves can be guaranteed.
Composed of carbonized Teflon seal ring and disc spring, the seat of gas welded ball valves has a good ability to adapt to the temperature and pressure. Generally, as long as the temperature and pressure don’t exceed the marked ones, it is not prone to emerge any leakage problem. Also, in the sphere processing, there is an advanced computer monitor to monitor the completion status so as to ensure the precision. Because the material of the valve body is the same as the pipe, so it will be not easy to have these following problems: unbalanced stress, road deformation and so on.
For the sealing ring of gas welded ball valves, it uses RPTFE material with a content of about 25% carbon to ensure zero leakage. For buried welded ball valves, instead of building a tall valve well, they can be directly buried in the ground simply with a small shallow well set up on the ground to meet their requirements, so this can greatly save construction financing and engineering time. Compared with other sanitary ball valves, gas welded ball valves have small volume, beautiful appearance, as well as long service life for at least 15 years in the case of normal operation.
Gas welded ball valves should not only be durable but also have good sealing performance. Learning some knowledge about its characteristics can help you to buy high-quality valves and eliminate the security threaten.
For more information, please visit http://www.adamantvalves.com/