GB5135.4-2003

Automatic sprinkler system--Part4: Dry pipe valves

自动喷水灭火系统第4部分: 干式报警阀

GB 5135.4-2003 は現行の中国強制国家規格です：Automatic sprinkler system--Part4: Dry pipe valves。業界：建設。テーマ：製品安全。施行日：2004年5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 dry pipe valves used in automatic sprinkler systems for fire protection. It covers the requirements, testing methods, and inspection rules for these specific control valves. It is not applicable to other accessories beyond the dry pipe valve itself.

技術要求

The standard specifies the appearance quality, nominal diameters, and rated working pressure (which must be no less than 1.2 MPa) for dry pipe valves. It mandates that body and cover materials have corrosion resistance not lower than cast iron, and moving parts must use materials like bronze or austenitic stainless steel. It outlines strict requirements for leakage and deformation under various pressure conditions, ensuring the valve prevents water from leaking from the supply side to the outlet side in the set position. The valve must function correctly within a specified pressure range and trigger alarm devices. The standard also details requirements for rigid non-metallic parts and valve seat seals, including aging resistance and tensile stress-strain characteristics. Additionally, it specifies fire resistance criteria for valves made with materials having a melting point below 800°C, requiring them to withstand an 800°C fire test for 15 minutes.

試験方法

Testing methods include appearance inspection, working cycle tests (5000 cycles for springs and diaphragms), and aging tests for non-metallic parts (air and warm water aging). It also covers valve body strength tests, leakage and deformation tests, and hydraulic friction loss tests. Functional tests evaluate the valve's operation, anti-reseat mechanisms, and alarm triggering, while a fire resistance test assesses performance under high temperatures.

よくある質問

What products are regulated under GB 5135.4-2003?

It regulates dry pipe valves used in automatic sprinkler systems, specifically differential-type and mechanical-type dry pipe valves.

What is the minimum rated working pressure required by this standard?

The rated working pressure of the dry pipe valve must be no less than 1.2 MPa.

Does GB 5135.4-2003 reference international standards?

Yes, the standard primarily references ISO 6182.3 for the requirements and test methods of dry pipe valves in automatic sprinkler systems.

The summary above provides a high-level overview of GB 5135.4-2003. 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 5135.4-2003 today to access all detailed parameters, tables, and testing procedures.

適用のヒント

種別: 製品
CCS: C83
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