GB/T 15558.2-2023Buried polyethylene(PE) piping systems for the supply of gaseous fuels - Part 2: Pipes (English PDF)

1 Scope

This document specifies the materials, product classifications, specifications, dimensions and deviations of buried polyethylene (PE) pipes for gas (hereinafter referred to as "pipes") and physical and mechanical properties, inspection rules, marking and packaging, transportation and storage requirements, and the corresponding test methods are described:

This document, together with other parts of GB/T 15558, is applicable to operating temperatures between -20°C~40°C and maximum operating pressure (MOP)

Buried polyethylene pipeline system for gas not exceeding 1:0MPa:

This document is applicable to underground polyethylene for gas use with a nominal outer diameter of 16mm~800mm made of PE100 and PE80 grade compounds:

Vinyl pipe:

Note 1: When transporting artificial coal gas and liquefied petroleum gas, it is necessary to consider the impact of other components (such as aromatic hydrocarbons and condensate) present in the gas on the pipe properties at a certain concentration:

adverse effects on performance:

Note 2: The maximum working pressure of the pipeline system is related to the working temperature and the material's rapid crack propagation resistance (RCP) critical pressure, see GB/T 15558:1-2023

Appendix C: The reference operating temperature is 20°C:

Note 3: The MOP of polyethylene pipes is determined based on the design stress sigmaD and takes into account the influence of RCP performance; the MOP depends on the minimum required strength of the material type

MRS, standard size ratio SDR and overall usage (design) coefficient (C>=2), etc:

Note 4: Relevant parties are responsible for appropriately selecting the products specified in GB/T 15558 (all parts) based on specific application requirements and in combination with relevant regulations, standards or specification requirements:

product:

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document:

GB/T 2411 Determination of indentation hardness (Shore hardness) of plastics and hard rubber using a durometer (GB/T 2411-2008, ISO 868:

2003,IDT)

GB/T 2828:1 Enumeration sampling inspection procedures Part 1: Batch-by-batch inspection sampling plan retrieved by acceptance quality limit (AQL) (GB/T 2828:1-2012,ISO 2859-1:1999,IDT)

GB/T 2918 Standard environment for conditioning and testing of plastic specimens (GB/T 2918-2018, ISO 291:2008, MOD)

GB/T 3682:1 Determination of melt mass flow rate (MFR) and melt volume flow rate (MVR) of plastic thermoplastics

Part 1: Standard method (GB/T 3682:1-2018, ISO 1133-1:2011, MOD)

GB/T 4217 Nominal outer diameter and nominal pressure of thermoplastic pipes for fluid transportation (GB/T 4217-2008, ISO 161-1:

1996,IDT)

GB/T 6111 Determination of internal pressure resistance of thermoplastic piping systems for fluid transportation (GB/T 6111-2018, ISO 1167-1:

2006, ISO 1167-2:2006, ISO 1167-3:2007, ISO 1167-4:2007, NEQ)

GB/T 6671 Determination of longitudinal shrinkage of thermoplastic pipes (GB/T 6671-2001, eqvISO 2505:1994)

GB/T 8804:3 Determination of tensile properties of thermoplastic pipes Part 3: Polyolefin pipes (GB/T 8804:3-2003,

ISO 6259-3:1997,IDT)

GB/T 8806 Determination of dimensions of plastic components of plastic piping systems (GB/T 8806-2008, ISO 3126:2005, IDT)

GB/T 9341 Determination of bending properties of plastics (GB/T 9341-2008, ISO 178:2001, IDT)

GB/T 15558.1 | GB/T 18742.1 | GB/T 15560 | GB/T 17643 | GB/T 15558.5 | GB/T 15558.4 | […]