GB/T 27572-2025 Active National standards

GB/T 27572-2025 Rubber seals—Joint rings for pipelines for hot-water supply up to 110 ℃—Specification for the materials

GB/T 27572-2025 Rubber seals—Joint rings for pipelines for hot-water supply up to 110 ℃—Specification for the materials

Publish Date: 2025-10-31 Implement Date: 2026-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 27572-2025
Standard Type: National standards
Standard Status: Active
is_force_gb: no
CCS Name: \nRubber seals
ICS Name: Sealing components
Publish Date: 2025-10-31
Implement Date: 2026-05-01
Publisher: 国家市场监督管理总局、国家标准化管理委员会
Technical Committee: 全国橡胶与橡胶制品标准化技术委员会(SAC/TC 35)
Pages: 32 pages

Scope

本文件规定了饮用和非饮用热水供应管道用的硫化橡胶密封圈的材料要求。
本文件规定的各种密封圈的标识是根据密封圈的级别、用途及要求确定。
本文件也规定了成品密封圈的一般要求。由于管道接口的性能与密封圈材料性能、密封圈几何形状及接口设计相关,相关产品标准还规定了特定应用场景所需的额外要求。本文件旨在适当的情况下与规定接口性能要求的产品标准一起使用。
本文件适用于铸铁管道、钢管道、陶瓷管道、水泥管道、钢筋水泥管道、塑料管道及玻璃纤维增强塑料管道等所有管接口密封圈。
本文件适用于复合的或非复合的密封圈的弹性体部分。对于硬度为76 IRHD~95 IRHD 的材料制成的复合密封圈,只有当橡胶材料参与密封作用或要求密封长期稳定使用时才适用拉断伸长率、压缩永久变形及应力松弛要求。
本文件中规定的材料要求是为长期在最高达110 ℃热水中工作50年的潜在寿命而设计的。附录A规定的材料要求是为最高达130 ℃热水中工作30年的潜在寿命而设计的。密封寿命不仅取决于材料性能,还取决于本文件中未定义的其他参数,如安装设计、装配质量以及与工作条件的结合。
本文件不适用于由发泡橡胶材料制成的管接头密封圈。

Development Information

Drafting Units:

河北友联橡胶制品有限公司、马鞍山宏力橡胶制品有限公司、新兴铸管股份有限公司、际华橡胶工业有限公司、天津市际华橡胶制品有限公司、四川道弘新材料股份有限公司、西北橡胶塑料研究设计院有限公司、国铭铸管股份有限公司、山东省国铭输水件橡胶制品有限公司、安徽省庐江县华益橡胶制品有限公司、铁岭五星密封研究所有限公司、日丰企业(佛山)有限公司、四川佳世特橡胶有限公司、连云港中复连众复合材料集团有限公司、河北华亘科技有限公司、邢台市橡胶厂、厦门麦丰密封件有限公司、湖南橡塑密封件厂有限公司、辽宁红海鑫鑫密封科技有限公司、山西大通铸业有限公司、晋城市迈龙新型材料有限公司

Drafting Persons:

韩平、舒本勤、王嵩、高学军、王恩清、周江帆、渠向江、周武刚、魏浩、王浩、赵迎新、葛洪兵、迟晓萌、林细勇、陈克辉、许华明、李洋、靳建国、郑华安、昌盛昌、庞淼、巩跃龙、王会利、常勤辉、刘丽琴、陈勇、徐晓辉、宫景文、李慧、葛子凡、黄威、尹文华、徐文平、张芳、刘玉科、李锦杰、郭世忠、董建团、宋向锐

Word Count: 37 Thousand words Pages: 32 pages

Replace the following standards

Referenced Standards

GB/T 528-1998 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 528-2009 Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties GB/T 1685-2008 Rubber,vulcanized or thermoplastic—Determination of stress relaxation in compression at ambient and at elevated temperatures GB/T 1690-1992 Rubber, vulcanized-Determination of the effect of liquids GB/T 1690-2006 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids GB/T 1690-2010 Rubber,vulcanized or thermoplastic—Determination of the effect of liquids GB/T 2941-2006 Rubber—General procedures for preparing and conditioning test pieces for physical test methods GB/T 2941-2025 Rubber—General procedures for preparing and conditioning test pieces for physical test methods GB/T 3512-2001 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method GB/T 3512-2014 Rubber, vulcanized or thermoplastic—Accelerated ageing and heat resistance tests—Air-oven method GB/T 3672.1-2002 Rubber—Tolerances of products—Part 1:Dimensional tolerances GB/T 3672.1-2025 Tolerances for rubber products—Part 1:Dimensional tolerances GB/T 5576-1997 Rubbers and latices—Nomenclature GB/T 5576-2025 Rubber and latices—Nomenclature GB/T 6031-1998 Rubber,vulcanized or thermoplastic—Determination of hardness (hardness between 10 IRHD and 100IRHD) GB/T 6031-2017 Rubber,vulcanized or thermoplastic—Determination of hardness(hardness between 10 IRHD and 100 IRHD) GB/T 7757-1993 Rubber, vulcanized or thermoplastic—Determination of compression stress-strain properties GB/T 7757-2009 Rubber,vulcanized or thermoplastic—Determination of compression stress-strain properties GB/T 7759.1-2015 Rubber,vulcanized or thermoplastic—Determination of compression set—Part 1:At ambient or elevated temperatures GB/T 7762-2003 Rubber, vulcanized or thermoplastic—Resistance to ozone cracking—Static strain test GB/T 7762-2014 Rubber,vulcanized or thermoplastic—Resistance to ozone cracking—Static strain testing GB/T 9871-2008 Rubber,vulcanized or thermoplastic—Determination of aging characteristics by measurement of stress relaxation GB/T 12829-2006 Rubber,vulcanized or thermoplastic—Determination of tear strength of small test pieces (Delft test pieces) GB/T 17604-1998 Rubber—Recommendations for the workmanship of pipe joint rings—Description and classification of imperfections GB/T 18991-2003 Thermoplastics pipes and fittings for hot and cold water systems GB/T 20028-2005 Rubber, vulcanized or thermoplastic—Estimation of life-time and maximum temperature of use from an Arrhenius plot GB/T 20878-2007 Stainless and heat-resisting steels—Designation and chemical composition GB/T 20878-2024 Stainless steels—Designation and chemical composition GB/T 27800-2011 Determination of the life for static sealing rubber products GB/T 27800-2021 Determination of the life for static sealing rubber products

Adopt standards

ISO 9631:2018

Related Standards

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