GB27898.4-2011

Fixed water supply equipment used for fire-protection - Part 4: Gas driven fixed water supply equipment used for fire-protection

固定消防给水设备第4部分：消防气体顶压给水设备

GB 27898.4-2011 est une norme nationale chinoise obligatoire en vigueur : Fixed water supply equipment used for fire-protection - Part 4: Gas driven fixed water supply equipment used for fire-protection. Secteur : Machines. Thème principal : Sécurité des produits. Entrée en vigueur : 1 juin 2012.

L’applicabilité dépend du périmètre du produit, de la voie de certification, des avis des autorités et des règles de transition. Demandez une traduction ou vérifiez la source avant d’utiliser cette fiche pour une décision de conformité.

Aperçu de conformité

Cet aperçu n’est actuellement disponible qu’en anglais.

Champ d’application

This standard applies to gas driven fixed water supply equipment used for fire-protection, which typically consists of pneumatic water tanks, control cabinets, gas driven systems, and pressure reducing devices. It is mandatory for manufacturers producing fire-protection water supply systems utilizing gas top-pressure technology for the Chinese market. Equipment with similar working principles may refer to this standard, but it does not cover other types of fire water supply equipment detailed in separate parts of the GB 27898 series.

Exigences techniques

The standard specifies critical requirements for gas driven fixed water supply equipment, focusing on structural integrity, operational control, and water supply capacity. Key technical areas include the equipment's basic parameters, such as the minimum fire-rated working pressure and maximum flow rate, ensuring systems meet baseline safety thresholds. Manufacturers must ensure that pressure vessels and gas cylinders comply with strict material and safety regulations. It outlines detailed control functionality requirements, including emergency start mechanisms, automatic activation triggers based on pressure drops or fire alarms, and pressure stability during fire operation. The standard mandates specific performance for intermittent water supply and pump switching capabilities to ensure reliability during emergencies. The document also covers the gas driven system components, such as manifold tubes, pressure reducing valves, and container valves. These components must undergo rigorous strength and sealing tests to prevent leaks or failures under high pressure. Additionally, the control cabinet must feature dual power supplies with automatic switching and battery backup systems capable of sustaining operations during power outages.

Méthodes d’essai

Testing procedures evaluate the equipment's overall performance and component reliability. Key tests include water supply capacity tests to measure replacement water volume and flow rates, and continuous operation tests to verify stability under prolonged use. The standard also details specific evaluations for the gas driven system, such as pressure reducing valve performance tests (including strength, sealing, and high-pressure impact resistance) and container valve reliability tests. Environmental noise measurement is conducted according to GB/T 3222.2 to ensure operational noise remains within acceptable limits.

Questions fréquentes

What products are regulated under GB 27898.4-2011?

GB 27898.4-2011 regulates gas driven fixed water supply equipment used for fire-protection. This includes systems comprising pneumatic water tanks, control cabinets, and gas top-pressure systems designed to supply water to fire protection networks at a rated working pressure.

Are there any mandatory chapters in GB 27898.4-2011?

Yes, Chapters 5, 7, and 8 are mandatory. These chapters cover the technical requirements, inspection rules, and marking/instruction manuals, meaning compliance with these specific sections is legally required for market access in China.

What are the power supply requirements for the control cabinet?

The control cabinet must be equipped with dual power supplies capable of automatic and manual switching within 2 seconds. Alternatively, it can use a battery backup system that must activate within 2 seconds of a main power failure and sustain 10 normal fire-start operations after 96 hours of power loss.

The summary above provides a high-level overview of GB 27898.4-2011. 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 27898.4-2011 today to access all detailed parameters, tables, and testing procedures.

Indications d’applicabilité

Type: Produit
CCS: C84
ICS: 13.220.10
Autorité compétente: National Fire and Rescue Administration
Comité technique: National Technical Committee on Fire Protection of Standardization Administration of China

Relations

Remplacée par:GB 27898.4-2025 (À venir)