The Underground Fire Hydrant is a critical firefighting infrastructure component installed below ground level, designed to provide a reliable water source during emergency situations. It is connected to the main water supply network and accessed via a surface-level hydrant pit or chamber cover. This type of hydrant is commonly used in urban areas, industrial complexes, airports, and facilities where above-ground hydrants may be impractical or vulnerable to damage.
Constructed with robust ductile iron or cast iron, underground hydrants are engineered for durability, corrosion resistance, and efficient operation under high pressure.
Key Features:
Designed for installation below ground level
Conforms to BS 750 or equivalent international standards
Typically rated for 16 bar working pressure
Equipped with valve spindle and outlet coupling (e.g., BS336)
Compatible with hydrant standpipes and key & bar operation
Features anti-corrosion coating for long-term reliability
Protected by hydrant box or surface chamber with cover
Suitable for municipal, industrial, and airport applications