T/GZHG 016-2020 Abolished Group standards

T/GZHG 016-2020 Flame-resistant polypropylene/boron nitride (PP-BN) heat-conducting hexagonal-shaped pipe with a six-sided structure

Publish Date: 2020-05-06 Implement Date: 2020-05-06 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GZHG 016-2020

Standard Type: Group standards

Standard Status: Abolished

is_force_gb: no

CCS Name: Plastic profiles

ICS Name: Plastic Composite

Publish Date: 2020-05-06

Implement Date: 2020-05-06

Scope

Main Technical Content: 6. Technical Requirements 6.1 The colors of the inner and outer layers of the color pipes shall be uniform and consistent. The outer layer is generally orange, and other colors can be agreed upon by the supplier and buyer. 6.2 The appearance of the pipes shall not have bubbles, dents, obvious impurities, or irregular wave patterns on the inner and outer walls. The two ends of the pipes should be flat, perpendicular to the axis, and located in the trough area. The inner and outer walls of the trough area of the pipes shall be integrally molded and tightly welded, without any separation or delamination. 6.3 Dimensions and Specifications The pipes are specified by their nominal inner diameter (DN inner diameter series). 6.3.1 Length The effective length of the pipes L is generally 6m, and other lengths can be determined by negotiation between the supplier and buyer. There should be no negative deviation in length. 6.3.2 Dimensions The dimensions shall comply with Table 3, and the distance S between the cutting surfaces of two pipes connected by clamps should be less than or equal to the data specified in the table. For example, for an outer hexagonal inner-diameter pipe with a specification of ID200, S≤5. Table 3 Dimensions of Pipes Unit: mm Specification DN×B×C Average Inner Diameter d.min Minimum Laminated Wall Thickness e min Minimum Inner Layer Wall Thickness e1 min Maximum Wave Distance P max Maximum Joint Gap S max 100 (123×143) 100±1.5 1.8 0.6 33.0 150 (181×211) 150±2.0 2.3 0.8 43.0 175 (208×248) 175±2.5 2.5 1.0 68.0 200 (250×300) 200±2.5 2.5 1.0 88.0 6.4 Physical and Mechanical Properties The physical and mechanical properties of the pipes shall comply with Table 4. Table 4 Physical and Mechanical Properties of Pipes Item Unit Indicators Bending Stiffness (SN16) (kN/m2) ≥16 SN24 ≥24 SN32 ≥32 SN40 ≥40 Resistance to Ext