Ultra Durable Wear Resistant Mining Dredging Hose Flexible And
Strong
Description
The slurry suction hose is specifically engineered for tunnel and
underground dewatering applications, where construction teams need
to safely and efficiently remove water mixed with mud, rock
cuttings, and sediment from excavations, tunnels, or subways. These
hoses are designed to handle abrasive slurries, high suction loads,
and frequent bending around confined spaces while maintaining
structural integrity and reliable performance.
In tunneling operations, the working environment is confined, with
limited access, high pressure gradients, and abrasive mixtures that
challenge conventional hoses. Premature liner wear, kinking, or
vacuum collapse can lead to operational delays, increased labor
costs, and safety hazards. Hongruntong Marine slurry suction hoses
address these issues by providing a robust, flexible, and
abrasion-resistant solution tailored for underground conditions.
Case Study: Metro Tunnel Dewatering Project
During a metro tunnel excavation in a densely populated city, water
and mud accumulated continuously at the tunnel face. Initial
attempts using standard industrial hoses led to repeated failures,
including vacuum collapse and liner erosion, causing work
stoppages.
Hongruntong supplied 250 mm ID slurry suction hoses with a
multi-layer reinforced structure: a thick abrasion-resistant liner,
dual steel wire helix, synthetic textile plies, and robust external
protective covers. The hoses were routed through curved tunnel
passages, with multiple bends, while maintaining vacuum stability.
Over 900 hours of continuous operation, hoses showed minimal wear,
zero structural failures, and reliable dewatering, allowing the
tunneling project to proceed on schedule and within budget.
Specifications
Construction |
Inner Liner | Natural rubber in various thicknesses and compounds |
Reinforcement | Nylon cord fabric with spring steel wire helix |
Outer Cover | Black abrasion and UV-resistant natural rubber |
Specifications |
Hose Size | 50~1500 |
Hose Length | Up to 12m |
Pressure Rating | 5-40bar |
Temperature Rating | -40°C to +80°C |
Safety Factor | 4:1 |
Bend Radius | 8 to 10 times diameter (Standard) |
End Fittings | Fixed flanges, swivel flanges, plain cut, cuffed, swollen, custom
fittings |
Flange Types | D, E, F, ANSI 150, ANSI 300, Custom |
Materials | Stainless steel, Hot-dipped galvanised, Carbon steel, Custom paint |
Inner Diameter | Working Pressure | Burst Pressure | Length | Wall Thickness |
| mm | (Mpa) | (Mpa) | (m) | (mm) |
| 300 | 0.4-1.2 | 3.6 | 1-3 | 34-37 |
| 414 | 0.4-1.2 | 3.6 | 1-3 | 35-37 |
| 560 | 0.4-1.2 | 3.6 | 2-3 | 40-45 |
| 600 | 0.4-1.2 | 3.6 | 2-3 | 40-45 |
| 700 | 0.8-1.5 | 4.5 | 2-3 | 40-45 |
| 800 | 1.2-2.5 | 5.5 | 2-3 | 50-52 |
| 900 | 1.5-2.5 | 7.5 | 2-3 | 55-58 |
| 1000 | 2.0-2.5 | 7.5 | 3-5 | 75-78 |
Key Features
Thick Abrasion Resistant Inner Liner
The inner liner is manufactured using a high-performance rubber
compound optimized for abrasive slurries common in underground
environments. Its substantial thickness and wear-resistant
formulation ensure uniform wear and extended service life. The
liner effectively resists fine sand, gravel, and mud particles,
reducing maintenance frequency and operational downtime.
Multi Layer Reinforcement for Vacuum and Flexibility
The hose incorporates dual steel wire helix reinforcement combined
with synthetic textile plies to resist vacuum collapse, tensile
stress, and bending loads. This multi-layer structure ensures the
hose maintains its shape and functionality even when routed around
sharp bends or through confined underground passages. It also
provides durability against repeated flexing and torsional stress,
common in tunnel dewatering applications.
Durable External Cover
The outer cover protects against abrasion, chemical exposure, UV,
and mechanical impact. In underground projects, hoses are often
dragged over rough surfaces, in contact with machinery, and exposed
to wet, gritty environments. Optional reinforced overlays or scuff
strips protect the hose further, ensuring longevity and reducing
maintenance needs.
Optimized Flexibility and Vacuum Stability
Hongruntong hoses are engineered for balance between flexibility
and structural integrity. Optimized bend radius and wall thickness
transitions prevent kinking, maintain smooth slurry flow, and
resist vacuum collapse under high suction conditions. This ensures
reliable dewatering and operational safety in confined tunnel
environments.
Applications
Subway and Metro Tunnel Excavations
Slurry suction hoses are vital in removing water, mud, and cuttings
from tunneling operations, maintaining a dry working environment
and ensuring structural safety. Hoses must handle abrasive
sediment-laden water and navigate complex tunnel geometries without
kinking or vacuum failure.
Underground Utility Tunnels
During construction of utility tunnels, water intrusion and
sediment accumulation require continuous pumping. Hoses must resist
abrasion, vacuum collapse, and flexing around confined bends, while
providing consistent slurry transport to dewatering systems.
Mining and Geological Exploration Tunnels
In exploratory or small-scale mining tunnels, water and sediment
removal is necessary to maintain operational efficiency and safety.
Hoses must withstand abrasive and chemical-laden slurries, repeated
bending, and vacuum stresses while remaining durable and reliable
over extended operational periods.
Why Choose Hongruntong Marine
Specialized Expertise in Underground and Tunnel Applications
Hongruntong has extensive experience designing hoses for confined,
abrasive, and high-suction underground environments. We understand
stress points, bend fatigue, and vacuum dynamics, allowing us to
engineer hoses tailored for tunnel and sub-surface operations.
Comprehensive Testing and Quality Assurance
All hoses undergo rigorous vacuum collapse, burst pressure,
abrasion, and bending fatigue testing. Hongruntong adheres to
ISO-certified quality standards, ensuring consistency,
traceability, and operational reliability under demanding
underground conditions.
Custom Engineering and Project-Specific Solutions
Hoses can be customized for diameter, length, liner material,
reinforcement layers, and end fittings. Advanced simulation tools,
including finite element analysis and flow modeling, are used to
optimize hose performance for specific tunnel geometries, slurry
compositions, and operational loads.
Global Support and After-Sales Service
Hongruntong provides technical guidance, predictive wear
monitoring, maintenance support, and rapid spare parts delivery.
Our global network ensures minimal downtime and reduced total cost
of ownership for complex underground projects.
FAQ
1. What is the expected lifespan of a tunnel slurry suction hose?
Lifespan depends on slurry abrasiveness, suction load, particle
size, and operation schedule. Typically, Hongruntong hoses last
900–1,500 operational hours in tunnel dewatering applications
before significant wear.
2. Can the hose handle high vacuum loads without collapse?
Yes. The dual steel wire helix and synthetic plies prevent vacuum
collapse even under demanding suction conditions. Safety-tested
with margins above design pressure.
3. What end fittings are available for underground applications?
Options include flanged ends (ANSI, DIN, JIS), cam-lock couplings,
quick-connect systems, and swivel joints. Designed for minimal
stress concentration and smooth slurry flow.
4. How is hose abrasion mitigated in confined environments?
Abrasion-resistant covers, reinforced overlays, and scuff strips
protect hoses against rough tunnel surfaces. Proper routing and
regular inspection further reduce wear and damage.
5. What maintenance practices are recommended for underground
hoses?
Inspect liner thickness, flush hoses after operation, avoid sharp
bends, secure hoses to prevent dragging, monitor for leaks or
distortion, and maintain spare hose segments for quick replacement.
