GB5135.1-2019

Automatic sprinkler system—Part 1: Sprinklers

自动喷水灭火系统第1部分：洒水喷头

GB 5135.1-2019은(는) 현행 중국 강제 국가 표준입니다: Automatic sprinkler system—Part 1: Sprinklers. 산업: 환경. 주제: 제품 안전. 시행일: 2020년 7월 1일.

적용 여부는 제품 범위, 인증 경로, 주관 당국 공고, 전환 규정에 따라 달라집니다. 컴플라이언스 판단에 사용하기 전에 번역을 의뢰하거나 공식 출처를 확인하세요.

컴플라이언스 개요

이 개요는 현재 영어로만 제공됩니다.

적용 범위

GB 5135.1-2019 applies to sprinklers used in automatic sprinkler systems, including standard coverage and Extended Coverage (EC) sprinklers. It covers various types such as pendent, upright, sidewall, flush, recessed, and concealed sprinklers. This standard does not apply to Early Suppression Fast Response (ESFR) sprinklers, domestic sprinklers, special application sprinklers, or on/off sprinklers, which are regulated by other parts of the GB 5135 series.

기술 요구 사항

This standard specifies comprehensive performance and construction requirements for sprinklers. It mandates that sprinklers must be designed to prevent easy adjustment, disassembly, or reassembly, and sets strict tolerances for mass deviation. The standard defines requirements for nominal flow coefficients, interface threads, and color-coding based on operating temperatures. Manufacturers must ensure that the sealing structure of the water outlet does not use rubber seals. The standard outlines critical hydraulic and thermal performance criteria. This includes water pressure sealing and hydrostatic strength integrity, water distribution patterns, and flow coefficient limits. It sets precise parameters for static operating temperatures and dynamic thermal response, categorizing sprinklers into quick response, special response, and standard response based on their Response Time Index (RTI). Furthermore, the standard requires sprinklers to withstand various mechanical and environmental stresses. This encompasses resistance to water impact, fatigue strength, thermal stability, vibration, mechanical impact, collision, rolling, and freezing. Sprinklers must also demonstrate robust corrosion resistance against ammonia, magnesium chloride, sulfur dioxide/carbon dioxide, salt spray, and humid gases. Finally, it defines specific fire suppression performance criteria, including wood crib and corrugated box fire tests for specific flow coefficients.

시험 방법

The standard details rigorous testing procedures to verify compliance. Key tests include hydrostatic strength and sealing tests to ensure structural integrity under pressure, and flow coefficient measurements under varying pressures. Water distribution tests are conducted in specialized laboratory setups using collect boxes to measure discharge density. Dynamic thermal response is evaluated using wind tunnels to determine the RTI. Additionally, the standard outlines procedures for environmental endurance tests, such as salt spray exposure, stress corrosion, and extreme temperature cycling, alongside full-scale fire suppression tests using wood cribs and corrugated paper boxes.

자주 묻는 질문

What products are regulated under GB 5135.1-2019?

GB 5135.1-2019 applies to sprinklers used in automatic sprinkler systems, including standard coverage and Extended Coverage (EC) sprinklers. It does not apply to ESFR sprinklers, domestic sprinklers, special application sprinklers, or on/off sprinklers.

Are there any updates from the previous version of GB 5135.1?

The 2019 version replaces GB 5135.1-2003 and GB 5135.12-2006. Key updates include the addition of requirements for mass deviation, sealing structures, rolling resistance, freezing performance, and specific EC sprinkler performance criteria. It also introduces new corrosion resistance tests using magnesium chloride and sulfur dioxide/carbon dioxide.

How does GB 5135.1-2019 differ from ISO standards?

GB 5135.1-2019 was drafted with reference to ISO 6182-1:2014. While the core technical framework and testing philosophies are closely aligned with the ISO standard, GB 5135.1 incorporates specific Chinese national requirements, such as mandatory model designations and unique testing procedures for the local market.

The summary above provides a high-level overview of GB 5135.1-2019. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 5135.1-2019 today to access all detailed parameters, tables, and testing procedures.

적용 참고 사항

유형: 제품
CCS: C84
ICS: 13.220.10
주관 부처: National Fire and Rescue Administration
기술 위원회: National Technical Committee on Fire Protection of Standardization Administration of China