GB15930-2024
Fire dampers for building venting and smoke-venting system
建筑通风和排烟系统用防火阀门
GB 15930-2024 is a current mandatory Chinese national standard for Fire dampers for building venting and smoke-venting system. It appears in the Construction compliance cluster with a product safety focus and has an implementation date of Mar 1, 2026.
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 the design, manufacturing, and inspection of fire dampers, combination fire and smoke dampers, smoke dampers, constant closed ventilation valves, and automatic smoke exhaust windows. It is intended for use in industrial, civil, and underground building ventilation, air conditioning, mechanical smoke exhaust, and pressurization systems. Manufacturers of these fire protection components must comply with this standard to enter the Chinese market. It replaces the previous GB 15930-2007.
Technical requirements
The standard specifies comprehensive material and structural requirements for fire dampers. Components such as valve bodies and blades must be constructed from cold-rolled steel, galvanized steel, or stainless steel, with specific thickness requirements based on the nominal size area. All metallic parts must undergo proper anti-corrosion and anti-rust treatments. The standard also defines the classification and coding system based on usage, control methods (thermal, manual, electric), and fire resistance ratings (e.g., E1.0, E1.5, E2.0, E3.0). For operational performance, the standard mandates specific requirements for drive torque, reset functions, and signal feedback capabilities. Fire dampers and combination fire and smoke dampers must feature reliable thermal release mechanisms that automatically close the valve when exposed to specific temperatures. Valves must endure at least 200 open/close cycles without compromising sealing performance. Additionally, they must withstand a 120-hour salt spray corrosion test. Leakage and fire resistance are critical parameters outlined in the document. Under environmental temperatures, valves must maintain strict air leakage limits under specified static pressure differences. During fire resistance testing, the valves must maintain their fire integrity for the rated duration without sustained flaming, and the smoke leakage per unit area must not exceed the defined threshold. GB/T 9978.1 is referenced for fire test conditions. For automatic smoke exhaust windows, the standard introduces new requirements including low-temperature resistance (-25°C) and high-temperature resistance (300°C). These windows must open within 60 seconds upon receiving a fire linkage signal or thermal release trigger. They must also withstand 1000 open/close cycles to ensure long-term reliability.
Testing methods
The standard details rigorous testing procedures, including: - Drive torque measurement using spring dynamometers. - Thermal release mechanism testing in controlled water or oil baths. - Reliability testing involving 200 to 1000 open/close cycles. - Salt spray corrosion testing over 5 cycles (120 hours). - Air leakage measurement under specific pressure differentials using orifice plates. - Fire resistance testing in a furnace compliant with GB/T 9978.1.
FAQs
What products are regulated under GB 15930-2024?
It regulates fire dampers, combination fire and smoke dampers, smoke dampers, constant closed ventilation valves, and automatic smoke exhaust windows used in building venting and smoke-venting systems.
Are there any updates from the previous version of GB 15930?
Yes, the 2024 version introduces new definitions and requirements for constant closed ventilation valves and automatic smoke exhaust windows, adds new fire resistance ratings (E1.0, E2.0, E3.0), and includes requirements for remote reset and signal feedback functions.
How does GB 15930-2024 address automatic smoke exhaust windows?
It specifies new technical requirements for automatic smoke exhaust windows, including opening angles, fire linkage opening functions, low-temperature (-25°C) and high-temperature (300°C) performance, and a 1000-cycle reliability test.
The summary above provides a high-level overview of GB 15930-2024. 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 15930-2024 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Product
- CCS
- C 82
- ICS
- 13.220.50
- Competent department
- National Fire and Rescue Administration
- Technical committee
- National Technical Committee on Fire Protection of Standardization Administration of China
Relationships
Replaces:GB 15930-2007