Series FRH · Self-Floating
Flexible Floating Dredging Hose
Integrated foam floatation — no external floaters required.
Heartwork FRH flexible floating dredging hose combines a heavy-duty NR/SBR slurry hose (tensile ≥18 MPa, abrasion loss ≤0.20 cm³/1.61 km) with an independent closed-cell foam floatation layer. Under working condition (media sand content ≤30%), the floating portion above water is ≥30% of the maximum outer diameter — no external floaters required.
Key Features
Why field crews specify Heartwork
Rides the surface
Independent foam floatation layer keeps ≥30% of O.D. above water under working load.
Abrasion tuned
NR/SBR tube: tensile ≥18 MPa, abrasion loss ≤0.20 cm³/1.61 km. Wear indicator layers optional.
No water absorption
Closed-cell independent foam layer — avoids waterlogging over years of service.
UV & ozone stable
CR synthetic rubber cover — outstanding weather, UV and ozone aging resistance.
Variants In This Line
Choose the configuration that fits your job
01
Standard FRH
Balanced buoyancy and flex for port and dock dredging discharge lines.
02
Heavy-Duty FRH
Extra reinforcement for higher pressure and heavier abrasive slurry loads.
03
Wear-Indicator FRH
Optional wear indicator layers for hoses carrying highly abrasive media.
Specifications
The technical range
| Model range | FRH-6 to FRH-24 |
| Inner diameter | DN 150 – DN 600 (6" – 24") |
| Working pressure | 0.8 – 2.5 MPa |
| Floatation | Independent closed-cell foam layer |
| Above-water portion | ≥30% of O.D. (sand ≤30%) |
| Standard length | 11.8 m |
| Tube compound | NR/SBR, tensile ≥18 MPa |
| Cover compound | CR — weather/UV/ozone resistant |
| Max diameter | Custom up to φ1600 mm |
All specifications are customisable to project requirements — send your drawing for a matched proposal.
Applications
Where it deploys
- Offshore reclamation floating discharge line
- River crossing floating pipeline section
- Tidal zone flexible floating connection
- Cutter suction dredger floating discharge
- Sand dredger floating discharge line
- Booster station flexible floating connector