Easy Maintenance Gate Butterfly Alarm Check Fire Quick Response Signal Grooved Extinguisher Valve. GB8013-2005 Certified: Meets strict GB8013-2005 certification standards for fire safety equipment reliability. Elastic Sealing Design: Features elastic gate deformation for excellent sealing, light switch, and extended lifespan. Wide Size Range: Available in sizes from DN50 to DN300 to fit various pipeline requirements. OEM & ODM Services: Offers full customization from samples, designs, or minor adjustments for specific needs. High Pressure Resistance: Withstands nominal working pressure of 1.6MPa and strength test pressure of 6.4MPa. 100% Quality Inspection: Every finished product undergoes visual and functional inspection before shipment. Fast Delivery: Typical delivery within 30-45 days after advance payment receipt. Professional Manufacturer: Over 15 years experience with independent R&D team and 80 production lines.