Regulator valve common failure and treatment methods

Regulator valve common failure and treatment methods

Valve regulating valve is a common mechanical equipment, in industrial production and civil fields are widely used. However, due to long-term use and improper operation, the valve regulator often appears a variety of failures. This article describes some common failures and how to deal with them.

1. The check valve fails

The check valve is a very important part of the valve regulator, which is used to prevent media from returning and causing equipment damage. However, over long periods of use, check valves can fail, leading to backflow, which requires greater care when opening and closing valves to avoid liquid return.

Solution: If the check valve fails, check whether there are foreign bodies or impurities inside the valve and clean it up in time. If the check valve is completely removed for inspection and there is abnormal deformation or loosening of the internal structure, a new check valve needs to be replaced.

2. The valve stem is improperly sealed

The valve stem is an important part of the control valve switch, if the valve stem seal is poor, it will lead to the valve can not be successfully switched on and off, and then affect the normal production.

Treatment method: First of all, check whether the valve stem is damaged or whether the foreign body is stuck in the valve stem; If the stem is damaged or the foreign body is small, try to repair or clean it up. If the stem seal is severely damaged, it is recommended to replace the stem with a new one for best results.

3. Air leakage

Air leakage is a common failure of the valve regulator, which may be due to any part of the valve loosening or getting stuck from a foreign body, and may lead to different positions of air leakage.

What to do: First you need to check every piece of the valve to make sure that they are properly held together. If there is still a leak problem, we can conduct an overhaul to check if the valve is damaged and try to use glue or gasket to seal the valve.

4. No response

When the valve does not respond to a command, it may be a short circuit in the signal line, a faulty battery, or a problem with the valve control panel, etc.

Treatment: First check all the wires of the valve to make sure they are securely connected. Patiently inspect the various electronic components to ensure that they are not damaged and are working properly. If no diagnosis can be made, it is necessary to remove the valve for a thorough inspection, or contact a professional technician to help solve the problem.

In short, valve regulating valve in the process of equipment need to pay attention to its maintenance and maintenance, to ensure the normal work of equipment. The treatment method described above can help operators deal with the problems in the valve control valve in time. In normal operation, we should pay attention to the operation procedures of the valve, and cautiously switch to ensure the good work of the equipment.