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GB8181-2005
Fire nozzles
消防水枪
GB 8181-2005 — действующий обязательный национальный стандарт Китая: Fire nozzles. Отрасль: Строительство. Тема: Безопасность продукции. Дата вступления в силу: 1 апр. 2006 г..
Применимость зависит от продукции, схемы сертификации, уведомлений компетентных органов и переходных правил. Закажите перевод или проверьте источник, прежде чем использовать эту запись в решениях по соответствию.
Обзор требований
Этот обзор пока доступен только на английском языке.
Область применения
This standard applies to fire nozzles with a working pressure ranging from 0.20MPa to 4.0MPa and a flow rate not exceeding 16L/s. It covers various types of water nozzles, including straight stream, fog, and combination nozzles used in fire fighting operations. This standard is not applicable to pulse pneumatic spray nozzles. It serves as a critical compliance document for manufacturers and suppliers of fire fighting equipment entering the Chinese market.
Технические требования
The standard categorizes nozzles into low pressure, medium pressure, and high pressure types based on their working pressure ranges. It specifies the basic parameters for each category, including rated flow, reach, and spray angle tolerances. Manufacturers must ensure that the flow rate and reach at rated喷射压力 strictly comply with the designated parameter tables. Additionally, adjustable low-pressure combination nozzles are classified into four distinct functional categories based on how flow rate and spray angle interact. The standard outlines specific requirements for the operation structure and mechanical performance of the nozzles. This includes defining the open/closed positions for lever handles, maximum operating torque limits, and the rotational direction for adjusting spray angles. Operating torque must not exceed 15N·m to ensure usability during emergencies. Material requirements mandate the use of corrosion-resistant materials or anti-corrosion treatments, with casting materials complying with relevant GB/T standards. Furthermore, the standard sets rigorous environmental and durability requirements. Nozzles must withstand extreme temperatures (-30°C to +55°C), demonstrate anti-drop performance from a height of 2.0 meters, and resist salt spray corrosion. The nozzle body and all sealing parts must remain completely leak-free under maximum working pressure. Surface quality, including the absence of cracks and mandatory anodizing for aluminum parts, is also strictly regulated.
Методы испытаний
GB 8181-2005 mandates several critical testing procedures to verify compliance: Spray Performance Test (measuring reach, flow rate, and spray angles under specific wind and pressure conditions), Hydrostatic Strength and Sealing Test (pressurizing the nozzle to 1.5 times the maximum working pressure to check for leaks and deformations), Environmental Resistance Tests (high/low temperature exposure, drop tests, and a 120-hour salt spray corrosion test), and Operating Torque Measurement. All testing apparatus must meet strict precision requirements, such as pressure measurement accuracy of grade 1.5 or higher.
Частые вопросы
What products are regulated under GB 8181-2005?
GB 8181-2005 applies to fire nozzles with a working pressure of 0.20MPa to 4.0MPa and a flow rate not exceeding 16L/s. It specifically excludes pulse pneumatic spray nozzles.
Are there any updates from the previous version of GB 8181?
The 2005 version introduced pressure ranges for low, medium, and high-pressure nozzles, added basic parameters for medium and high-pressure nozzles, redefined model numbering, and increased requirements for salt spray corrosion duration and drop test heights.
How does GB 8181-2005 relate to international standards?
The standard references several international standards, such as ISO 965-1 for thread tolerances and ISO 3601-1 for O-ring seals, while establishing specific national requirements for fire nozzle performance and testing.
The summary above provides a high-level overview of GB 8181-2005. To ensure complete compliance for your fire fighting equipment entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 8181-2005 today to access all detailed parameter tables, classification codes, and testing procedures.
Подсказки по применимости
- Тип
- Продукция
- CCS
- C84
- ICS
- 13.220.20
- Компетентное ведомство
- National Fire and Rescue Administration
- Технический комитет
- National Technical Committee on Fire Protection of Standardization Administration of China