T/GZHG 013-2020 Nano-modified High Density Polyethylene (MUHDPE) Alloy Drainage Pipe。

Scope

Main Technical Content: 5.1 Technical Requirements 5.1.1 The colors of the inner and outer layers of the color-coated pipes shall be uniform and consistent, and the color is generally green, which can be agreed upon by both the supplier and the buyer. 5.1.2 Appearance: The inner and outer walls of the nano-modified high-density polyethylene (MUHDPE) alloy drainage pipes shall be smooth and flat, with no air bubbles, cracks, obvious scratches, indentations, or discoloration lines. Ventilation grooves are not allowed. The end face of the sleeve shall be cut flat and perpendicular to the axis. 5.1.3 Length: The length of the nano-modified high-density polyethylene (MUHDPE) alloy drainage pipes is generally 6m, which can also be agreed upon by both the supplier and the buyer. The length of the sleeve shall include the length of the socket. The maximum deviation in length is ±0.5% of the length. 5.1.4 Dimensions: The dimensions of the pipes shall meet the requirements of Table 1, and the minimum average inner diameter of the socket shall not be less than the maximum average outer diameter of the pipes. Table 1: Dimensions of Pipes Unit: mm Inner diameter Nominal size (DN/ID) Minimum average inner diameter (dim, min) Minimum laminated wall thickness (emin) Minimum joint length (Amin) Wall thickness of the socket (e 2200 195 2.0 60 2.5 400 392 3.0 77 500 490 3.5 85 4.0 96 4.0 800 7.5 118 5.5 Environmental Stiffness Grade: The nano-modified high-density polyethylene alloy drainage pipes are classified according to their environmental stiffness, as shown in Table 2. Table 2: Environmental Stiffness Grades of MUHDPE Alloy Drainage Pipes Grade (SN8) SN10 SN12.5 SN16 SN20 Environmental Stiffness (kN/m2) (8) 10 12.5 16 20 Note: The values in parentheses are non-preferred grades. 5.6 Physical and Mechanical Properties: The physical and mechanical properties of the nano-modified hig

Development Information

Related Standards