Resumo em português · Tradução disponível
GB12514.2-2006
Fire coupling - Part 2: Patterns and basic parameters for fire snap-types coupling
消防接口 第2部分：内扣式消防接口型式和基本参数
GB 12514.2-2006 é uma norma nacional chinesa obrigatória vigente: Fire coupling - Part 2: Patterns and basic parameters for fire snap-types coupling. Setor: Construção. Foco: Segurança de produtos. Entrada em vigor: 1 de ago. de 2006.
A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.
Visão geral de conformidade
Esta visão geral está disponível por enquanto apenas em inglês.
Escopo e aplicabilidade
This standard applies to internal snap-type fire couplings used in fire water supply systems, including hose couplings, suction pipe couplings, pipe thread couplings, caps, and fixed internal/external thread couplings. It is not applicable to couplings made of steel strips. It covers various types such as KD, KDN, KY, and KM.
Requisitos técnicos
The standard specifies the structural patterns and basic parameters for internal snap-type fire couplings. Chapters 4 and 5 of this standard are mandatory provisions. It defines the structural requirements for various coupling types, including hose interfaces (KD, KDN), pipe thread interfaces (KY), and reducing interfaces (KJ). Furthermore, the standard outlines the basic dimensions and their tolerances for different nominal diameters ranging from 25mm to 150mm. It specifies the critical dimensional parameters such as outer diameter, inner diameter, and length limits for each coupling type under specific nominal pressures of 1.6 MPa and 2.5 MPa. The standard also details the marking methods for these couplings. Manufacturers must follow the specified marking format to indicate the nominal pressure, nominal diameter, and type code. For instance, a 2.5 MPa pressure rating is denoted by the letter Z, while 1.6 MPa can be omitted.
Métodos de ensaio
This standard primarily focuses on dimensional and structural verification rather than complex performance testing. The evaluation involves checking the structural patterns against the provided diagrams and verifying the basic dimensions and tolerances using standard measurement techniques. Unspecified tolerances should comply with GB/T 1804-2000.
Perguntas frequentes
What products are regulated under GB 12514.2-2006?
It regulates internal snap-type fire couplings used in fire water supply systems, such as hose couplings, suction pipe couplings, and fixed thread couplings.
Are there any mandatory chapters in GB 12514.2-2006?
Yes, Chapters 4 and 5 regarding structural patterns and basic dimensions are mandatory.
Does GB 12514.2-2006 apply to steel strip couplings?
No, the standard explicitly states that it is not applicable to couplings made of steel strips.
The summary above provides a high-level overview of GB 12514.2-2006. 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 12514.2-2006 today to access all detailed parameters, tables, and structural diagrams.
Indicações de aplicabilidade
- Tipo
- Produto
- CCS
- C84
- ICS
- 13.220.20
- Órgão competente
- National Fire and Rescue Administration
- Comitê técnico
- National Technical Committee on Fire Protection of Standardization Administration of China