What are the common causes of failure of the Pressure Relief Valve for Irrigation system and what are the preventive measures?

1. Common causes of failure
(1) Damage to valve components
Wear and corrosion: After long-term use of the Pressure Relief Valve for Irrigation system, the valve components of the pressure relief valve (such as the valve core, valve seat, etc.) will be damaged due to wear and corrosion, resulting in poor sealing or failure to work properly.
Fatigue damage: Components such as the balance spring, valve core and valve seat may produce fatigue and cracks under long-term variable load operation, and then fail.
Processing defects: Residual stress that may exist during the processing of parts and external load stress during use will cause deformation of parts when they exceed the yield strength of the part material.
(2) Blockage and debris
Pipeline blockage or unreasonable design, as well as debris wrapped around the valve, will affect the normal operation of the pressure relief valve and cause unstable water pressure.
(3) Spring problems
Loose springs or insufficient elasticity will also affect the operation of the pressure relief valve and cause unstable irrigation water pressure.
(4) Hydraulic oil problem
Although hydraulic oil is not usually used in irrigation systems, in pressure control of similar hydraulic systems, water or acidic substances mixed in the hydraulic oil will corrode the parts inside the valve and reduce its accuracy and performance.
(5) External factors
External factors such as wild animals may also cause damage to the pressure reducing valve. Although this situation is relatively rare in irrigation systems, it is still necessary to take precautions.
(6) Improper manufacturing or maintenance
If the pressure reducing valve does not meet the specified technical requirements during the manufacturing or repair process, or if the parts are not properly maintained, rusted, or mixed with dirt, it will also cause it to fail.
2. Preventive measures
(1) Regular maintenance and inspection
Maintain and inspect the pressure reducing valve regularly, including cleaning the inside of the valve, replacing worn or damaged parts, adjusting the spring force, etc., to ensure its normal operation.
(2) Keep the pipeline unobstructed
Check the irrigation pipeline regularly to ensure that there is no blockage and accumulation of debris, and keep the pipeline unobstructed.
(3) Use high-quality components
Select high-quality, corrosion-resistant valve components and spring accessories to improve the durability and reliability of the pressure reducing valve.
(4) Reasonable design and installation
Reasonably design the installation location of the irrigation system and the pressure reducing valve to avoid pressure problems caused by unreasonable design.
(5) Strengthen protection measures
Install protective devices such as protective covers on the outside of the pressure reducing valve to prevent damage to it by external factors.
(6) Operator training
Train operators to understand the working principle, operation method and maintenance knowledge of the pressure reducing valve, and improve their operating skills and sense of responsibility.