The Technical Supervision Committee of the Ministry of Public Security approved the release of the GA79 "Fire Ball Valve" industry standard, which is a mandatory standard and will be implemented as of the date of approval. GA79-1994 "Fire Ball Valve Performance Requirements and Test Methods" shall be abolished at the same time.

The fire ball valve is the main component in the fire water supply pipeline. It is widely used in fire water supply systems, foam fire extinguishing systems, fire engines and other fire fighting facilities and fire fighting equipment. Its performance directly affects the stability and reliability of the water supply pipeline; The original fire ball valve standard was established in 1994. This revision work combines the standard implementation over the years and the technical development trend of related products at home and abroad to further improve the technical requirements and test methods of the fire ball valve.

Compared with the 1994 version, the new version of the standard has mainly made the following changes in the technical content:

1. Added the classification of “drive mode”; 2. Simplified the specification requirements, changed to DN (nominal size) according to relevant standards, and adjusted the model preparation method; 3. Increased the structural length and connection size requirements of the ball valve; 4, increased the requirements of the ball valve flow; 5, increased the requirements of the ball valve power drive; 6, increased the corrosion resistance requirements and test methods of the overcurrent components; 7, increased the requirements of the emergency operating handle; 8, modified The indicators of pressure resistance, sealing performance and static pressure life; 9, the removal of the color of the ball valve coating; 10, modified the packaging, transportation and storage requirements of the ball valve; 11, increased the ball valve test procedures and the number of samples.

The release and implementation of this industry standard has adapted to the development needs of the valve electric device industry. It will greatly improve the pressure bearing capacity of the water supply pipeline fire ball valve, greatly improve the safety of the water supply pipeline, and further strengthen the quality supervision and management of the product and promote The promotion and application of new products and new technologies will play an important role in safeguarding people's lives and property.