BS750-2 Underground Hydrant High Durability DN80 Fire Hydrant

Working Pressure:16kg/cm²
Shell Test Pressure:24kg/cm²
Seat Test Pressure:18kg/cm²
Media:Water
Working Temperature:0-52°C

100% Fusion Bonded Epoxy Coating for Inner and Outside Surface

Flange Drilled According to EN1092 PN10,PN16

Size:DN80

Product Overview

The BS750-2 Underground Fire Hydrant is a heavy-duty below-ground hydrant engineered to BS 750 Type 2 standards for buried installation in municipal and industrial water networks. Featuring a ductile iron body (Model 7502), DN80 nominal bore, and a high-pressure rating of 16kg/cm², this hydrant delivers robust, tamper-resistant fire protection with minimal above-ground footprint. The 100% Fusion Bonded Epoxy coating on both inner and outer surfaces ensures exceptional long-term corrosion resistance in aggressive soil and water conditions.

Key Features & Advantages

• BS 750 Type 2 Underground Design: Specifically designed for below-ground installation per BS 750 Type 2 specification. The hydrant body is fully buried, with only the outlet cover plate accessible at ground level — ideal for streetscapes, pavements, and areas requiring unobstructed surface access.
• High Pressure Rating: With a working pressure of 16kg/cm² (Shell Test: 24kg/cm², Seat Test: 18kg/cm²), this hydrant significantly exceeds standard municipal requirements, making it suitable for high-rise and pressurized network applications.
• Superior Corrosion Protection: 100% Fusion Bonded Epoxy (FBE) coating on both internal and external surfaces provides a robust barrier against soil corrosion, groundwater attack, and internal water scaling, meeting AWWA C550 requirements.
• Ductile Iron Construction: The body, bonnet, and internal components are cast from GJS-500-7 ductile iron, delivering outstanding mechanical strength, impact resistance, and long-term structural integrity under ground load conditions.
• Self-Draining Frost Protection: The hydrant automatically drains upon closure via a built-in drain valve, ensuring no standing water remains in the barrel — critical for freeze protection in cold climate installations.
• Tamper-Resistant Design: The below-ground configuration with locked cover plate prevents unauthorized access, vandalism, and accidental damage, a key advantage over above-ground pillar hydrants.
• Compact DN80 Footprint: The DN80 (3-inch) nominal size offers an optimal balance of flow capacity and installation economy, suitable for branch mains and secondary fire networks.

Technical Specifications

Applications

• Urban Municipal Fire Water Mains (Below-Ground)
• City Centre Streetscapes & Pedestrian Zones
• Industrial Complex Underground Fire Networks
• Airport Apron & Runway Fire Systems
• Residential Subdivision Underground Fire Loops
• Highway & Tunnel Emergency Water Supply
• University & Hospital Campus Fire Protection

Installation Highlights

• Designed for direct burial with standard pipe trenching methods
• Flanged inlet connection per EN1092 PN10/PN16 for flexible pipeline integration
• Surface-level access cover with standard fire brigade key operation
• Compatible with standard BS standpipes and fire hose couplings
• Low-profile cover plate available in ductile iron or composite materials

Quality Assurance

Every BS750-2 Underground Hydrant undergoes rigorous hydrostatic pressure testing (Shell Test at 24kg/cm², Seat Test at 18kg/cm²) at our ISO-certified facility in Qingdao, China. Each hydrant is individually tested for main valve sealing, automatic drain function, and flange dimensional conformity. 100% coating holiday detection ensures complete FBE coverage. Full material traceability from casting to dispatch.

Packaging & Logistics

• Packaging: Heavy-duty wooden crate with internal bracing, protective end caps, and VCI (Volatile Corrosion Inhibitor) treatment for all machined surfaces.
• Delivery Time: Approximately two months from order confirmation.
• Supply Capacity: 300 containers per year, capable of supporting large-scale municipal infrastructure and turnkey fire protection projects.