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Standard
Scope of Application
Dimensional requirements for circular cross-section metal air ducts (galvanized, stainless steel, aluminum ducts, etc.) and accessories, and standardized compatibility of accessories.
Core Technical Requirements
Dimensional Specifications:
Specifies the diameter series and tolerance range of circular air ducts and accessories to ensure interchangeability of products from different manufacturers;
Clearly defines the geometric dimension requirements for accessories such as elbows, tees, and reducers;
Connection Methods:
Includes dimension matching standards for interface types such as flange connection and socket connection;
Compatibility Design:
Requires that the pipeline system design be compatible with the interface dimensions of other ventilation equipment (e.g., fans, filters).