DB35/T 1441-2014 DB35/T 1441-2014 Polyvinyl Chloride (PVC-U) Squeegee Annular Velocity Reduction and Noise Reduction Fittings for Architectural Drainage。
DB35/T 1441-2014 DB35/T 1441-2014 Polyvinyl Chloride (PVC-U) Squeegee Annular Velocity Reduction and Noise Reduction Fittings for Architectural Drainage。
Basic Information
Scope
This standard specifies the product classification, material requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of hard polyvinyl chloride (PVC-U) swirl noise reduction pipe fittings for building drainage. This standard applies to hard polyvinyl chloride (PVC-U) swirl noise reduction pipe fittings for building drainage, which are mainly made of polyvinyl chloride (PVC) resin, with the addition of suitable additives, and are injection-molded, assembled, and connected by adhesives (hereinafter referred to as adhesive connection) or flexible connections with threaded fittings (hereinafter referred to as flexible connection). This product is used as drainage pipe fittings for civil buildings; under the condition of meeting the performance requirements, it can also be used as drainage pipe fittings for industrial applications.