Analysis of installation and maintenance points of slurry valve in working conditions on site

In mining beneficiation, papermaking and pulp making, sewage treatment, power plant ash removal and other working conditions, the medium often contains a large amount of solid particles, and ordinary valves are prone to problems such as rapid wear, easy blockage, and poor closure.slurry valveIt is the specialized valves designed for such complex working conditions that emphasize wear resistance, passability, and sealing reliability in their structure and material selection, playing an irreplaceable role in practical applications.

For slurry valves, selection is certainly important, but the correct installation method and standardized daily maintenance also directly affect the service life and operational stability of the valve.

1、 Details that cannot be ignored in the installation process

Before installing the slurry valve, it should be ensured that the pipeline system has completed the welding operation. In practice, it has been found that if valves are installed in advance before pipeline welding is completed, high temperatures can easily cause deformation of the valve body or sealing ring, laying hidden leakage hazards. Therefore, the standard practice is to first complete the flange welding and clean the welding slag before installing the valve.

During the installation process, it is important to ensure the coaxiality between the pipeline and the valve. If the coaxiality deviation is too large, it will not only affect the smoothness of valve opening and closing, but also accelerate the unilateral wear of the gate and valve seat. At the same time, the inner diameter of the flange gasket should be larger than the diameter of the valve seat to avoid the formation of a "protrusion" structure, which can cause solid particles in the slurry to accumulate, block slag, or even block the valve.

For slurry valves with bottom slag discharge structures, sufficient operating and maintenance space should be reserved for later cleaning and inspection.

2、 Daily maintenance improves service life

The slurry valve operates under high wear and high load conditions for a long time, and regular inspection and maintenance are particularly crucial. During operation, it is necessary to develop the habit of regularly flushing the bottom slag discharge outlet to prevent long-term accumulation of sediment, which may affect the normal opening and closing of the valve.

When the opening and closing force of the valve is significantly increased or the action is not smooth, it should be stopped for inspection in a timely manner. In most cases, the problem arises from solid particles entering between the gate and valve seat, or from worn seals. At this time, the stuck particles should be cleaned up and the seals should be replaced according to the wear condition to avoid "minor problems" from escalating into the scrapping of the entire valve.

In addition, if conditions permit, regular lubrication and fastening inspections of the valve transmission parts can also help maintain the overall operating status of the slurry valve.

3、 Conclusion

The reliable operation of the slurry valve relies on scientific installation and standardized maintenance. Only by doing well in all aspects of design, construction, and use can the advantages of anti-wear, non clogging, and stable sealing performance of slurry valves be truly utilized. Yongguan Valve is always committed to providing customers with slurry valve products and technical support that are more suitable for on-site working conditions, helping industrial systems operate in a long-term, safe, and efficient manner.