The standard specifies terms and definitions, structure, dimension and marking, general rules, requirements, test methods, inspection rules, marking, packaging, transportation and storage of distribution manifold of cold/hot water (hereinafter referred to as manifold) applicable to the heating and air-conditioning system.
The standard is applicable to manifold with working pressure not greater than 0.8 MPa and connection port not greater than DN32 used in air conditioning and heating water system (5℃~95℃ water temperature) in civil and industrial construction engineering.
2 Normative References
The following documents are indispensable for the application of the document. For dated references, only the dated edition applies. For undated references, the latest edition (including all the amendments) of the normative document applies.
GB/T 1220 Stainless Steel Bars
GB/T 2828.1 Sampling Procedures for Inspection by Attributes- Part 1: Sampling Schemes Indexed by Acceptance Quality Limit(AQL) for Lot-by-lot Inspection
GB/T 5231 Wrought Copper and Copper Alloys Chemical Composition Limits and Forms of Wrought Products
GB/T 6461-2002 Methods for Corrosion Testing of Metallic and Other Inorganic Coatings on Metallic Substrates - Rating of Test Specimens and Manufactured Articles Subjected to Corrosion Tests
GB/T 7306.1 Pipe Threads with 55 Degree Thread Angle Where Pressure-tight Joints Are Made on the Threads - Part 1: Parallel Internal and Taper External Threads
GB/T 7307 Pipe Threads with 55 Degree Thread Angle where Pressure-tight Joints are not Made on the Threads
GB/T 10125 Corrosion Tests in Artificial Atmospheres - Salt Spray Tests
GB/T 11379 Metallic Coatings - Electroplated Coatings of Chromium for Engineering Purposes
GB/T 13912 Metallic Coatings - Hot Dip Galvanized Coatings on Fabricated Iron and Steel Articles - Specifications and Test Methods
GB/T 13927 Industrial Valves - Pressure Testing
GB/T 14832 Test Methods for Compatibility between Hydraulic Fluids and Standard Elastomeric Materials
JGJ 142 Technical Specification for Floor Radiant Heating
YS/T 583 Brass Rods and Bars for Forging Plumbing Fittings
