The following precautions should be taken when using the Vacuum Breaker Valve:
1. Installation phase
Position selection: Be sure to install the vacuum breaker valve at a key position in the pipeline system where vacuum is likely to be generated, such as the high point of the pipeline, downstream of the valve, near the outlet of the pump, etc. The correct installation position is the prerequisite for ensuring its effective operation.
Installation direction: The installation direction must be determined strictly in accordance with the requirements of the product manual. Many vacuum breaking valves have clear regulations on the flow direction of the fluid. Incorrect installation may affect the normal opening and closing of the valve disc and damage the performance of the valve. At the same time, be careful during the installation process to avoid physical damage to the valve, such as collision, falling, etc., and pay special attention to protecting key components such as the valve disc and valve seat.
Connection method: Make sure the connection between the valve and the pipeline is firm and well sealed. According to the type of pipeline and working pressure, select the appropriate connection method, such as flange connection, threaded connection, etc. When connecting, use matching sealing gaskets and tighten the connecting bolts according to the specified torque to prevent leakage, otherwise it may affect the normal operation and service life of the valve.
2. Operation phase
Working pressure range: It is necessary to clearly define the working pressure range of the vacuum breaker valve to ensure that the actual pressure of the pipeline system is within the design allowable range.
Medium characteristics: Consider the properties of the medium in the pipeline, such as whether it is corrosive, whether it contains solid particles, etc. If the medium is corrosive, choose a vacuum breaker valve with corresponding corrosion resistance; if the medium contains solid particles, it may be necessary to install a filter upstream of the valve to prevent particles from entering the valve, wearing the valve disc and valve seat, and affecting the sealing performance of the valve.
Avoid frequent operation: Try to reduce unnecessary valve opening and closing operations. Frequent actions will accelerate the wear of the valve disc and valve seat and reduce the service life of the valve.
3. Maintenance phase
Regular inspection: Establish a regular inspection system to check whether the valve has any damage on the appearance, whether the connection parts are loose, whether the air inlet is blocked, etc. It is generally recommended to conduct a simple appearance inspection every quarter or half a year, and a comprehensive performance inspection every year, including checking the sealing performance of the valve disc, the elasticity of the spring, etc.
Cleaning and maintenance: Clean the air inlet and internal components of the valve regularly. The protective screen or filter at the air inlet should be cleaned regularly to prevent dust and impurities from entering. For the inside of the valve, it can be cleaned at regular intervals according to usage to remove dirt and sediment to ensure the normal operation of the valve.
Component replacement: When valve components such as valve disc, valve seat, spring, etc. are found to be damaged or have degraded performance, they should be replaced in time. Use original parts that meet the specifications or verified high-quality substitutes to ensure the performance and reliability of the valve.
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