Product Description

The GB standard gate valve is manufactured to Chinese national standards GB/T 12232 and CJ/T 216 for resilient-seated gate valves. It uses the proven concept of a ductile iron wedge fully encapsulated in food-grade EPDM rubber, ensuring bubble-tight sealing and eliminating seat corrosion. The non-rising stem with baked epoxy coating is designed for direct burial. This valve is the standard choice of Chinese municipal water companies and is exported to dozens of countries.

Key Features & Advantages

• Manufactured to GB/T 12232 and CJ/T 216 standards
• EPDM-encapsulated wedge — corrosion-free, bubble-tight sealing
• Non-rising stem with triple O-ring stem seals, replaceable in line
• Inside screw, non-rising stem for direct-bury installation
• Epoxy powder coating to drinking-water requirements
• Proven design trusted by municipal water authorities

Applications

The GB (Chinese Standard) Gate Valve is widely applied in municipal water supply and drainage networks, water treatment plants, petrochemical and coal-chemical plants, power stations, heating and gas supply systems, HVAC and building services, sewage renovation projects and waste recycling integrated systems. It is also suited to demanding sectors such as floating production storage units, onshore exploration & production, deep-sea extraction, LNG terminals, oil & gas pipeline transmission, and loading & storage systems.

Quality & Certification

Every valve is manufactured under our ISO 9001:2015 quality management system. Products carry UK WRAS hygiene approval and European EN1074 certification, and all processes — casting, machining, spraying, assembly, testing, inspection and packaging — are controlled and traceable. Custom materials, pressure classes and actuation packages are available on request.