GB/T 23127-2020 (English Version)

Scope: This standard specifies the requirements for household and similar electrical appliances to prevent back-siphoning of non-potable water into the water source, and also specifies the requirements for hose assemblies connecting such appliances to water supply sources with a water pressure not exceeding 1 MPa. Note 1: Similar uses include appliances installed in canteens, restaurants, laundries and public places. Note 2: This standard does not apply to the following appliances: --- appliances for dry cleaning; --- appliances for medical use; --- appliances for industrial use; --- water heaters integrated in the water supply system; - Water coolers integrated into the water supply system. Note 3: The connection of the appliance to the water source may be for temporary or permanent use. Note 4: "Water source" also includes water supply tanks or similar systems. Note 5: The relevant national management department may also stipulate that it is necessary to prevent the pollution of drinking water caused by inappropriate materials upstream of the anti-reflux device.

GB/T 23127-2020 Referenced Document

IEC 60730-2-8 Automatic electrical controls - Part 2-8: Particular requirements for electrically operated water valves, including mechanical requirements*， 2021-10-01 Update

2020 GB/T 23127-2020 Electric appliances connected to the water mains—Avoidance of backsiphonage and failure of hose-sets
2008 GB/T 23127-2008 Electric appliances connected to the water mains.Avoidance of backsiphonage and failure of hose-sets