Average service life of PE gate valve: The average service life of the valve is 25 years, some are properly maintained in the central heating system, and the scale deposit of hot and cold water is very low, so the service life of the valve may be longer. After using for a period of time; disassemble the valves and apply oil to them to ensure lubrication. This is the basic protection of the valve. It avoids some trivial problems during use. For some valves on the market, it is easy to do so. Replace, depending on the size of the gate valve. Leakage of PE gate valves: Most gate valves leak from the gate valve gasket. This is due to the buildup of deposits on the seal, which displaces a little. To stop leakage on the gate valve gland, all you need to do is tighten the gland nut, the second cause of gate valve leakage, the most likely area is the main valve where the valve body is connected, which can be done by unscrewing; ring on the thread Put on raw tape for backup; place new fiber washers on supports to secure areas. The third place where leaks occur is in the nut and spindle area.
The reason for the rupture of the PE gate valve: The reason for the rupture of the gate valve is that because the gate valve is fragile, the pressure is too high when the gate valve is closed. The spindle threads are not deep into the valve, so if too much pressure is applied, there is not enough place to stop the external resistance. Reasons for PE gate valves to get stuck: The reason why gate valves get stuck is due to the accumulation of iron and scale deposits in the water passing through the mains, as well as other deposits in the circulation, including hot and cold water systems. All deposits tend to stick to rough areas more easily than rough areas, and flat areas tend to be valves. Deposits get into the mechanism causing moving parts to block rather than move smoothly.
