GB12514-2026
Technical specifications for fire couplings
消防接口技术条件
GB 12514-2026 is an upcoming mandatory Chinese national standard for Technical specifications for fire couplings. It appears in the Construction compliance cluster with a product safety focus and has an implementation date of Feb 1, 2027.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to fire couplings used for connecting various fire water supply appliances. It covers snap-type, insertion-type, and screw-type interfaces, including hose couplings, pipe thread couplings, and suction pipe couplings. It is mandatory for manufacturers producing fire-fighting equipment for the Chinese market.
Technical requirements
This standard specifies comprehensive technical requirements for fire couplings, including basic dimensions and tolerances for different coupling types. It mandates strict material specifications, requiring aluminum, copper, steel, and cast iron components to meet specific Chinese national standards (e.g., GB/T 1173, GB/T 1176). The standard defines performance criteria such as operation force and torque, sealing performance under specific water pressures, and hydrostatic performance at 1.5 times the rated working pressure. Manufacturers must ensure couplings can withstand these operational stresses without leakage or structural failure. Additionally, it outlines durability requirements including spring fatigue life, drop resistance, and temperature resistance (both high and low). Corrosion resistance is also a key focus, requiring components to withstand salt spray testing. Specialized functions like rotation performance and lock-stop functions are specified for special-type couplings.
Testing methods
The standard details testing procedures for dimensional inspection using calipers and thread gauges, and visual checks for surface quality. It includes hydrostatic and sealing tests to verify pressure integrity. Durability is evaluated through spring fatigue testing, drop tests from a height of 1.8m, and extreme temperature exposure. Corrosion resistance is assessed via a 120-hour neutral salt spray test. Specialized tests for rotational torque and lock-stop effectiveness are also specified.
FAQs
What products are regulated under GB 12514-2026?
GB 12514-2026 applies to fire couplings used for connecting various fire water supply appliances. It covers snap-type, insertion-type, and screw-type interfaces, including hose, pipe thread, and suction pipe couplings.
Are there any updates from the previous version of GB 12514?
Yes, this version consolidates and replaces the previous four-part series (GB 12514.1-2005 to GB 12514.4-2006). It introduces new requirements for high/low temperature resistance, rotation, and lock-stop functions, and updates material and structural specifications.
How does GB 12514-2026 differ from ISO standards?
The standard incorporates specific Chinese dimensional tolerances and structural formats (detailed in the normative appendices) that may differ from international equivalents. Manufacturers must verify dimensional compatibility specifically against GB 12514-2026 rather than assuming direct ISO interchangeability.
The summary above provides a high-level overview of GB 12514-2026. 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 12514-2026 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C84
- ICS
- 13.220.20
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China
Relationships
Replaces:GB 12514.1-2005 (Current) , GB 12514.2-2006 (Current) , GB 12514.3-2006 (Current) , GB 12514.4-2006 (Current)