A Brass Gas Automatic Shut-off Valve is a safety device manufactured from high-quality brass. It is designed to automatically close the gas pipeline upon detecting gas leaks, earthquakes, or other abnormalities, effectively preventing gas-related accidents.
Technical Specification
1.Standard: CJ/T 447-2014
2.Working Temperature: -10°C≤ t ≤ 40°C
3.Max Auto Self-Closing Pressure:8KPa±2KPa
4.Min Auto Self-Closing Pressure:0.8KPa±0.2KPa
5.Auto Closing Time: t≤3s

Product Advantages
Durable: Cast from premium HPb59-1 or CuZn39Pb3 brass; 15+ year lifespan.
Triple Seal: PTFE, NBR, and metal-to-metal seals; leakage rate < 0.01%.
Fast Response: Electromagnetic drive + spring reset; closes within 0.3s.
Wide Pressure Range: Operates at 0.5-10kPa for residential, commercial, and industrial use.

Product Customization
Valve Diameter: DN15 / DN20 / DN25 / DN32 / DN40 / DN50
Thread Standard: G (BSPP) / NPT / Rc / M (Metric)
Control Type: Normally Closed / Normally Open / Pulse / Proportional Control
Signal Interface: Switch Input / 4-20mA Analog / RS485 / Wireless Remote
Protection Rating: IP44 / IP54 / IP65 / IP67
Installation: Threaded / Flanged / Welded / Tri-clamp
Branding: Laser Engraving / Silk Screen / Custom Nameplate / Neutral Packaging
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