T/GZHG 027-2022 Active Group standards

T/GZHG 027-2022 Polyvinyl chloride (modified anhydrous calcium sulfate) biaxial orientation electric power tube

Publish Date: 2022-01-05 Implement Date: 2022-01-05 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 027-2022

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Synthetic materials

ICS Name: Chemical production

Publish Date: 2022-01-05

Implement Date: 2022-01-05

Scope

Main Technical Content: 6. Technical Requirements 6.1 Color of Pipe: The color of the pipe is generally light yellow. Other colors shall be determined by mutual agreement between the supplier and the buyer, and the color should be uniform and consistent. 6.2 Appearance: The inner and outer walls of the pipe should be smooth and flat, without bubbles, cracks, depressions, protrusions, discoloration lines, or obvious impurities. The cut section of the pipe should be smooth, without cracks or burrs, and perpendicular to the pipe axis. 6.3 Specifications and Dimensions 6.3.1 Outer Diameter Series: The dimensions and tolerances of the pipe outer diameter series shall comply with Table 2. Table 2: Dimensions and Tolerances of the Pipe Outer Diameter Series Unit: mm Nominal Outer Diameter DN/OD Average Outer Diameter dim Tolerance Ring Stiffness (3%) Ovality Average Inner Diameter of Socket Allowable Tolerance Minimum Socket Depth Lo min Pipe Length Pipe Length Tolerance SN25 SN32 SN50 Nominal Wall Thickness en Wall Thickness Tolerance en Wall Thickness Tolerance en 32+0.2-0.2 1.5±0.2 1.6±0.2 1.8±0.2 ≤0.8+0.2-0.2 226,000, 9,000, 12,000 No negative tolerance allowed 63+0.5-0.3 2.6±0.3 3.0±0.3 3.5±0.3 ≤1.4+0.3-0.3 3590+0.5-0.3 3.8±0.3 4.3±0.4 4.8±0.4 ≤1.8+0.3-0.4 46100+0.7-0.3 4.2±0.4 4.8±0.4 5.0±0.4 ≤2.0+0.3-0.4 50110+0.7-0.3 4.5±0.4 5.0±0.4 5.8±0.4 ≤2.1+0.4-0.4 56166+0.9-0.5 6.5±0.5 8.0±0.6 8.8±0.6 ≤2.7+0.5-0.4 8222+1.0-0.5 8.0±0.6 9.6±0.6 11.5±0.8 ≤3.8+0.8-0.5 113 Note: Other specification sizes can be agreed upon by the supplier and the buyer. 6.3.2 Inner Diameter Series: The dimensions and tolerances of the pipe inner diameter series shall comply with Table 3. Table 3: Dimensions and Tolerances of the Pipe Inner Diameter Series Unit: mm Nominal Inner Diameter DN/ID Average Inner Diameter dim Tolerance Ring Stiffness (3%) Ovali