Usage and precautions of pneumatic suction check valve

Usage and precautions of pneumatic suction check valve
Pneumatic suction check valves are mainly used to prevent the backflow of media or water, and to protect important facilities such as turbine water pumps. The following are the usage methods and precautions for pneumatic suction check valves:
usage method
Preparation before installation:
Ensure that the valve is installed in the correct direction, and that the flow direction of the pipeline markings is consistent with the flow direction of the external markings of the check valve.
Select the appropriate valve model and specification based on the direction of the pipeline and check valve.
Valves should be separated from pipelines for load-bearing and should not be subjected to fluid gravity simultaneously with pipelines.
Installation steps:
Place the check valve in the designated position to ensure a tight connection between the valve and the pipeline.
Install the corresponding connectors and fasteners according to the valve model and specifications.
Check if the valve and pipeline connections are secure and if there are any leaks.
Operation:
When it is necessary to open the valve, the solenoid valve is controlled to be energized to allow air to enter the lower chamber of the cylinder, which works together with the heavy hammer to balance the valve disc in the fully open position.
When it is necessary to close the valve, the solenoid valve is controlled to cut off power, allowing the gas in the cylinder to be quickly discharged, and the valve disc quickly closes within 0.5 seconds.

Matters needing attention
Installation direction:
Ensure that the installation direction of the check valve is consistent with the flow direction of the medium to avoid valve failure caused by reverse installation.
Model and specifications:
Select the appropriate valve model and specifications based on the actual pipeline direction and flow requirements to ensure that the valve can work properly.
Load bearing problem:
The check valve needs to be separated from the pipeline for load-bearing to avoid damage to the valve due to excessive pressure.
Operation and maintenance:
During use, regularly check if the valve and pipeline connections are secure and if there are any leaks.
Regularly maintain and upkeep valves, including cleaning, lubrication, and tightening.
Safe operation:
When operating the valve, pay attention to following the operating procedures to avoid accidents.
In emergency situations, manual testing of valves and cylinders can be used to verify their proper functioning.
Performance requirements:
Valves should be able to close instantly within 0.5 seconds in emergency situations such as pipeline medium backflow, power outage, accidents, etc., to ensure the safety of equipment and pipelines.
The above is the usage method and precautions for pneumatic suction check valves. During use, it is necessary to strictly follow the operating procedures for operation and maintenance to ensure the normal operation and safety of the valve.