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Common problems of gate valve in PE pipe fittings


Release time:

Jul 06,2021

The average service life of PE pipe fittings is 25 years. Some valves are properly maintained in central heating systems, and the degree of scale deposition in hot and cold water is very low, so the service life of the valve may be longer. After a period of use; disassemble the valve, oil the valve, and ensure lubrication. This is the basic protection of the valve and avoids some trivial problems in use. Some valves on the market can be easily replaced without the need to do so, depending on the size of the gate valve.

PE pipe fittingsWhat is the average life of a gate valve?

The average service life of PE pipe fittings is 25 years. Some valves are properly maintained in central heating systems, and the degree of scale deposition in hot and cold water is very low, so the service life of the valve may be longer. After a period of use; disassemble the valve, oil the valve, and ensure lubrication. This is the basic protection of the valve and avoids some trivial problems in use. Some valves on the market can be easily replaced without the need to do so, depending on the size of the gate valve.

PE管件中的闸阀常见问题

PE pipe fittingsWhere is the gate valve leaking

Most PE pipe fitting gate valves will leak from the gate valve gasket. This is because there is a deposit on the seal and the seal is a little displaced.

To prevent leakage of the gate valve gland, simply tighten the gland nut. The two reasons for the leakage of the gate valve are the main valve connected to the valve body, which can be unscrewed; the raw material tape is wound on the line for backup; and a new fiber gasket is placed on the bracket to fix the area. The third place where leakage occurs is in the nut and spindle area.

What causesPE pipe fittingsRuptured gate valve

The reason for the rupture of the gate valve is that the pressure is too high when the gate valve is closed because it is fragile. The spindle thread does not go deep into the valve, so if too much pressure is applied, there is not enough position to prevent external resistance.

PE pipe fittingsWhy is the valve stuck?

The PE pipe fitting gate valve is stuck because iron and scale deposits and other circulating deposits will accumulate in the water passing through the main pipe, including cold and hot water systems. All deposits are more likely to adhere to rough areas than rough areas, and flat areas tend to be valves. The sediment enters the mechanism that causes the moving parts to block instead of moving smoothly.


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