Manufacturers bring preventive maintenance for regulating valves

PTFE lined valve Manufacturers bring preventive maintenance for regulating valves

According to the clamp type Fluorine-lined Butterfly Valve The manufacturer said that preventive maintenance is the maintenance carried out based on past operating experience during the installation and use of the regulating valve. It can be understood as routine maintenance, usually including several tasks such as elimination, inspection, clearance, and overhaul.
Stress relief: Improper combination or installation of pipelines can generate various stresses, which act on the regulating valve and its pipelines, easily affecting the performance of the regulating valve. In severe cases, it can affect the regulating system itself, causing deformation of the valve stem and guide components and inability to align with the valve seat center; For regulating valves with split valve bodies, it may cause Fluorine lined DC globe valve The detachment of the body flange; Stress may also cause valve seat leakage, etc.

Safe operation inspection: The regulating valve and related accessories used in explosive hazardous areas should be checked for their safe operation, such as whether the sealing cover is tightened, the operation of the safety barrier, the power supply situation, etc., to ensure that the regulating valve and related accessories can operate safely.

Check the support condition: The best position to install the regulating valve is to align the stroke direction of the valve stem with the actuator above the valve body in a vertical plane. If the regulating valve must be installed in a position that allows the valve stem to move horizontally, or when the direction of movement of the valve stem has a certain inclination angle with the horizontal plane, the actuator should be supported so that all components of the regulating valve are in a natural state. If no support is added or if the support is not properly added, it may cause the regulating valve stem to malfunction check valve The lack of concentricity of the valve seat can easily lead to differences or faults such as packing leakage.

Remove or prevent foreign objects from entering: Regularly check whether there is rust, welding slag, dirt, etc. in the connecting pipeline of the regulating valve, and promptly remove them if found. Because when the regulating valve is closed, a small piece of rust or welding slag is enough to damage the well ground sealing surface of the valve seat, and these pollutants can also cause wear on the regulating valve core and seat, affecting its normal operation.

Regular maintenance and refueling: The packing and oiler need to be readjusted after short-term use. In dusty environments, plastic or rubber sleeves should be used to protect the packing box and guide parts around the valve stem. In situations where corrosive gases or droplets are present, special protective measures should be taken. Generally, anti-corrosion bags should be used to wrap the regulating valve, but care should be taken not to affect its operation. In situations where fire resistance is required, special fire-resistant coatings, fireproof bags, and other methods can be used. The material of the fireproof bag contains multiple layers of ceramic fibers or glass fibers.
The article is written by Fluorine lined valve factory Provided, please indicate when reprinting http://www.lierduofm.com/