Pophen

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).