GB5135.14-2011
Automatic sprinkler systems - Part 14: Preaction devices
自动喷水灭火系统 第14部分：预作用装置
GB 5135.14-2011 is a current mandatory Chinese national standard for Automatic sprinkler systems - Part 14: Preaction devices. It appears in the Medical compliance cluster with a product safety focus and has an implementation date of May 1, 2012.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to preaction devices used in automatic sprinkler systems, specifically covering preaction alarm valve groups, control panels, pressure maintenance devices, and air supply units. It is mandatory for manufacturers producing fire protection equipment for the Chinese market. The standard is not applicable to standard wet or dry pipe valve systems without preaction capabilities, which are covered under other parts of the GB 5135 series.
Technical requirements
The standard specifies comprehensive requirements for the structural integrity and material selection of preaction alarm valve groups. Components must be made from corrosion-resistant materials like bronze or austenitic stainless steel, and rigid non-metallic parts must withstand specific aging tests. Manufacturers must ensure that valve bodies can endure high hydrostatic strength pressures without deformation. For the control panel and electrical components, the standard outlines requirements for power supply stability, control logic, and alarm functions. The control panel must feature both primary and backup power sources with automatic switching capabilities. It is essential that the control panel can receive fire alarm signals and initiate the preaction device reliably. Environmental resistance, including climate and mechanical vibration endurance, must comply with GA 61-2002. The standard also details the performance criteria for solenoid valves, check valves, and pressure reducing valves within the system. These components must demonstrate precise opening and closing actions under various pressure conditions. All pneumatic and hydraulic control components must pass rigorous sealing and reliability tests to prevent leakage.
Testing methods
- Hydrostatic Strength Test: Evaluates the structural integrity of valve bodies and components under pressures up to 4 times the rated working pressure. - Leakage and Deformation Test: Assesses the sealing performance of valves under static water pressure. - Air Tightness Test: Checks for gas leakage in the system side of the valve assembly. - Hydraulic Friction Loss Test: Measures the pressure drop across the valve at a specific flow velocity. - Functional Test: Verifies the automatic and manual activation of the preaction alarm valve group. - Fire Resistance Test: Determines the valve's ability to withstand high temperatures (800°C) for 15 minutes.
FAQs
What products are regulated under GB 5135.14-2011?
This standard regulates preaction devices used in automatic sprinkler systems, including preaction alarm valve groups, control panels, and air supply assemblies.
Are the requirements in GB 5135.14-2011 mandatory?
Yes, the structural and performance requirements for the preaction alarm valve group and control panel are mandatory for products sold in China.
Does GB 5135.14-2011 reference international standards?
The standard references ISO/DIS 6182-8:2006 and UL 260:2004 for technical alignment, but compliance with the Chinese GB standard is required for market access.
The summary above provides a high-level overview of GB 5135.14-2011. 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 5135.14-2011 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C84
- ICS
- 13.220.10
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China