Gate valves, as a type of valve widely used in industry, agriculture, and daily life, are highly favored due to their easy operation and good sealing performance. However, like all mechanical equipment, gate valves are inevitably prone to various malfunctions during operation.

1、 Water leakage issue
Water leakage is one of the most common faults of gate valves. There may be multiple reasons for water leakage, including but not limited to:
1. Wear of sealing surface: Long term operation may cause wear of the valve sealing surface, affecting the sealing effect.
2. Damage to valve seat or gate: External impact or corrosion may cause damage to the valve seat or gate, resulting in water leakage.
3. Packing aging: The packing ages due to long-term use and loses its sealing effect.

Solution:
-Replace seals: Replace damaged sealing surfaces or rings.
-Repair or replace valve: If the valve seat or gate is damaged, the entire valve may need to be repaired or replaced.
-Replace packing: For aged packing, replace with new packing and ensure correct installation.