Hygiene Level Of Valves
The hygiene level of valves is directly related to the quality of drinking water. In the water supply system, valves are key components. If their materials are not up to standard or there are design defects, it may lead to secondary pollution of water quality, thereby affecting the safety of residents' drinking water. Therefore, it is crucial to choose valves with high hygiene standards.
1.Material selection:
Valves with high hygiene standards are usually made of high-quality materials such as stainless steel (such as SUS304), food grade plastics, etc., which have excellent corrosion resistance and pollution resistance.
The interior of the valve should be smooth and seamless to reduce dead corners and gaps, prevent bacterial growth and pollutant accumulation.
2.Manufacturing process:
Valves with high hygiene standards require high-precision machining to ensure high surface smoothness, easy cleaning, and disinfection.
The design of valves should be easy to disassemble and maintain for regular inspection and removal of potential contaminants.
3.Certification and Standards:
Choose valves that comply with international or domestic hygiene standards, such as WRAS (Water Regulations Advisory Scheme), WaterMark (Australian Water Pipe Engineering Product Certification Mark), etc.
Valve manufacturers should provide necessary hygiene permits and testing reports to demonstrate the hygiene performance and safety of their products.
Anti Corrosion Characteristics Of Valves
The anti-corrosion characteristics of valves are crucial for ensuring the long-term stable operation of water supply systems. If the valve corrodes, it may lead to leakage, water pollution, and even system failure.
1.Material selection:
Choose materials with excellent corrosion resistance, such as stainless steel, titanium alloy, copper alloy, etc. These materials can resist erosion from various corrosive media such as acid, alkali, salt solutions, atmosphere, and soil.
Select appropriate valve materials and anti-corrosion measures based on the specific usage environment and medium characteristics.
2.Surface treatment:
Surface treatment of valves, such as galvanizing, chrome plating, oxidation (bluing), etc., to improve their resistance to atmospheric and medium corrosion.
Adopting surface processes such as nitriding and boronizing to improve the corrosion resistance and wear resistance of valves.
3.Anti corrosion coating:
Apply anti-corrosion coatings such as anti-corrosion paint, epoxy resin, etc. on the surface of the valve to further extend its service life and protect water quality.
The coating should have good adhesion and weather resistance, and be able to adapt to various harsh usage environments.
4.Regular inspection and maintenance:
Regularly inspect and maintain valves to promptly identify and address potential corrosion issues.
Replace or repair severely corroded valves to ensure the safety and stability of the water supply system.
