What are the main European Norm for faucets? What are they mainly about?
EN 817: Mechanical mixing valves (pn10) suitable for sanitary ware (toilets, bathrooms, etc.) and kitchen equipment. Its test contents include multiple aspects.
Identification and discrimination: The faucet body must be marked with the manufacturer's name and logo. It is stipulated that the left red button indicates hot water and the right blue button indicates cold water.
Material requirements: Including chemical and hygienic properties, it must be safe and pollution-free. The surface conditions and plating surface quality shall comply with the standards. The chrome-plated surface and ni-cr stainless steel surface shall meet EN 248.
Size characteristics: Involving general requirements for drawings and size regulations for mechanical mixing valves installed on the horizontal plane.
Sealing characteristics: Components cannot be loose or leak under certain pressure.
Hydraulic operating characteristics: Including sensitivity tests and water flow rate tests. The flow rate grades include different grades such as aq=0.25l/s, sq=0.33l/s, bq=0.42l/s, cq=0.50l/s, dq=0.63l/s, etc.
Mechanical adhesion performance: Performance requirements for mechanical adhesion under pressure.
Mechanical durability characteristics: That is, fatigue tests. 70,000 inspections of the product's status are required.
Backflow prevention test for pollution prevention: Prevent backflow pollution.
Acoustic characteristics: It is divided into 3 groups according to whether the water pressure is equal to 0.3 bar. Different groups have different noise limit requirements.
