GB8181-2025

Fire nozzles

消防水枪

GB 8181-2025 は施行予定の中国強制国家規格です：Fire nozzles。業界：建設。テーマ：製品安全。施行日：2026年8月1日。

適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。

コンプライアンス概要

この概要は現在英語のみで提供しています。

適用範囲

This standard applies to the design, manufacturing, and acceptance of fire nozzles with a working pressure ranging from 0.20 MPa to 4.0 MPa and a flow rate not exceeding 16 L/s. It covers various types of equipment, including low, medium, and high-pressure water guns, as well as combination and multi-purpose nozzles. This standard does not apply to pulse pneumatic spray fire nozzles.

技術要求

The standard specifies comprehensive performance criteria for fire nozzles, focusing on basic parameters such as rated flow, reach, and spray angle under specific pressure conditions. It details structural and operational requirements, mandating that moving parts must be easily operable while wearing XF 7 fire gloves, and sets strict limits on the operating torque for switches and rotating components. Manufacturers must ensure that all switching mechanisms, including flow rate and spray pattern adjustments, operate smoothly without sticking. Material and physical durability requirements are extensive, covering the use of compliant casting alloys, O-rings, and specific threading profiles. The nozzles must withstand rigorous environmental and mechanical stresses, including anti-drop performance, salt spray corrosion, and extreme temperature exposures ranging from -30°C to +55°C. Non-metallic critical components must also pass aging tests for heat, UV radiation, and warm water exposure without functional degradation. Additionally, the standard outlines specific requirements for nozzle interfaces, mandating compliance with the GB 12514 series, and introduces a flushing function requirement for guided low-pressure combination nozzles. Permanent markings, comprehensive user manuals, and robust packaging are mandatory to ensure proper identification and safe transport.

試験方法

The standard outlines a series of rigorous evaluation procedures, including flow and reach measurement tests to verify basic parameters, and structural inspections to ensure operability with fire gloves. It mandates reciprocating operation tests (300 cycles) to evaluate the durability of rotating and switching components under rated pressure. Environmental and durability assessments include drop tests, salt spray exposure, thermal aging, UV radiation, and extreme temperature cycling. Furthermore, it specifies hydrostatic pressure tests, sealing performance checks, and specific flushing capability assessments using standardized steel balls.

よくある質問

What products are regulated under GB 8181-2025?

GB 8181-2025 applies to fire nozzles with a working pressure of 0.20 MPa to 4.0 MPa and a flow rate not exceeding 16 L/s. It does not apply to pulse pneumatic spray nozzles.

Are there any updates from the previous version of GB 8181?

The 2025 version introduces several updates, including revised basic parameters and operating torque requirements. It also adds new performance and testing methods for reciprocating operation, thermal air aging, UV radiation resistance, warm water aging, and a flushing function for specific low-pressure nozzles.

How does GB 8181-2025 differ from international ISO standards?

GB 8181-2025 is a Chinese national standard tailored for the domestic fire equipment market, specifying unique structural and operational requirements, such as compatibility with XF 7 fire gloves and specific flushing functions. Manufacturers must comply with this standard to sell fire nozzles in China, regardless of ISO compliance.

The summary above provides a high-level overview of GB 8181-2025. 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 8181-2025 today to access all detailed parameters, tables, and testing procedures.

適用のヒント

種別: 製品
CCS: C84
ICS: 13.220.20
所管部門: National Fire and Rescue Administration
技術委員会: National Technical Committee on Fire Protection of Standardization Administration of China