What are the common faults of gate valves? Lets talk about how to quickly solve it.

What are the common faults of gate valves? Let's talk about how to quickly solve it.

Gate valves, as common pipeline components, are widely used in industries, construction, and other fields. However, due to long-term use or problems in design, manufacturing, and other aspects, gate valves also have some common faults during use, which affect their normal operation. This article will summarize and introduce common faults of gate valves and their solutions.

一、 Leakage issues

Leakage is a common problem during the use of gate valves, which is generally divided into two types:

1. Bottom leakage

Bottom leakage refers to a small amount of medium still leaking through the valve and flowing out at the upper end of the pipeline when the gate valve is closed. This situation may be caused by wear or deformation of the gate or sealing surface. The main solution is to regrind, replace the ram, or remake the sealing surface.

2. Shaft seal leakage

Shaft seal leakage refers to the leakage caused by poor sealing between the gate valve shaft and shaft seal. This situation may be caused by aging and loosening of the shaft seal, as well as long-term wear and tear of the gate valve. The solution is to replace the shaft seal or remachine the sealing surface.

二、 Stuck problem

Sometimes, gate valves rust or become stuck due to long-term use, in which case the valve cannot operate normally and affects work efficiency. The solution can be achieved by adding lubricants, heating corroded parts, or replacing stuck parts.

三、 Spline damage

There is a situation where the components are connected by splines in the gate valve, which is prone to problems. Damaged splines can cause the failure of the gate valve. The solution is to replace the splines or strengthen maintenance.

四、 Inconvenient operation

The handle of a gate valve is sometimes heavy and inconvenient to operate, resulting in low work efficiency. The solution is to install a lever on the handle or reduce friction resistance measures to improve the convenience of gate valve operation.

五、 Slipping problem

If the gate valve slips during operation, it may be due to poor rotation of the valve handle or hardware damage. The solution is to refuel the corresponding parts or reinforce/replace the relevant parts.

六、 Damage caused by tilting

Sometimes, due to improper use or accidents, the gate valve may tilt and cause damage, in which case it needs to be reinstalled and checked for other damages. In addition, tilted valves can also be corrected by fixing fixtures or brackets.

In summary, there are various problems in the use of gate valves, and mastering solutions is very important. In practical work, it is necessary to strengthen the daily maintenance and upkeep of gate valves, promptly identify and solve problems, and improve the work efficiency and service life of the equipment.