Rectangular Ductile Iron Box for Buried Fire Hydrants
The 380x230x100 FH surface box covers a buried fire hydrant and gives the fire service access to it from the road or footway surface. Its opening is rectangular rather than square, at 380 x 230mm, cast in ductile iron on the same 100mm frame depth as the square valve boxes.
Specifications
| Product code | CDSFH01 |
| Product type | Fire hydrant surface box |
| Nominal size | 380 x 230 x 100mm |
| Material | Ductile iron |
| Finish | Black coating |
| Standard | BS 5834 Part 2/3 |
Key Design Features
The opening is sized so a standpipe drops straight onto the hydrant outlet, which is why hydrant boxes run longer on one axis than the square boxes. The cover seats on a non-rocking design, and the closed keyways keep silt out of a chamber that may sit untouched between annual inspections.
Benefits
- Closed keyways keep the chamber clear, so the hydrant is not buried in debris.
- Non-rocking seating stops the cover moving under passing traffic.
- Ductile iron takes impact loading at a weight one person can lift.
- Black coating protects the casting where it sits in a road or footway.
- 100mm frame depth matches the square boxes, so bedding details do not change.
Applications
Use it over buried fire hydrants in roads, footways, estate roads and private access routes, wherever a hydrant has to be found and opened quickly. Hydrant boxes are normally cast with FH lettering so crews can pick them out. Where the chamber needs a wider opening, the 430x280x100 FH box is the next size up.
Explore More
The 430x280x100 FH box is the larger hydrant size in the same pattern. For buried valves and stop taps, the square 150x150x100, 225x225x100 and 300x300x100 boxes sit in the same Surface Boxes section.
Contact Us
For hydrant box sizing or site quantities, get in touch. We supply the trade across the UK.




