Heavy Duty Flexible Dredging Hose for Sand, Slurry and Sediment Suction Applications
Heavy-duty dredge suction hose designed for transporting sand, slurry, sediment, gravel, and other abrasive materials in dredging operations.
Manufactured with an abrasion-resistant rubber tube, high-strength textile reinforcement, and embedded steel wire coils, the hose provides excellent vacuum resistance, flexibility, and long service life in harsh marine environments.
Suitable for river dredging, harbor maintenance, land reclamation, offshore construction, and mining slurry transport.
Suction Dredging Hose also called mud suction & discharge hose, is mainly used for sewage, slurry, seawater and sand suction & discharge in many places. It is also used for flood discharge and port and dock construction. It has excellent flexibility and it is resistant to wave. It is composed of three parts: tube, reinforcement and cover. Tube is made from high quality synthetic rubber, such as NR, SBR and BR, making hose resistant to abrasion and seawater. Reinforcement is made from multiple layers of high tensile spiral steel wires, making hose have solid structure and bear high working pressure. Besides, reinforcement makes hose resistant to bending and fatigue. Cover is made from synthetic rubber, like NR, SBR and BR, making hose resistant to abrasion, corrosion, seawater, heat, weather, ozone and aging. The hose can be connected to pipeline very well, which can reduce the sea wave, so it can deliver medium flows smoothly.
Item code
Size
W.P.
B.P.
VACUUM
Wear layer Thickness
Cover Thickness
Length
inch
mm
bar
bar
bar
mm
mm
m
SDH300
12
300
3-10
9-30
0.8
10-15
5
1-3
SDH400
16
400
3-10
9-30
0.8
10-15
5
1-3
SDH450
18
450
3-10
9-30
0.8
10-15
5
1-3
SDH500
20
500
3-10
9-30
0.8
10-15
5
1-3
SDH550
22
550
3-10
9-30
0.8
10-15
5
1-3
SDH600
24
600
3-10
9-30
0.8
10-15
5
1.5-3
SDH650
26
650
3-10
9-30
0.8
15-20
5
1.5-3
SDH700
28
700
3-10
9-30
0.8
15-20
5
1.5-3
SDH750
30
750
3-10
9-30
0.8
15-20
5
1.5-3
SDH800
32
800
3-10
9-30
0.8
15-20
5
1.5-3
SDH850
34
850
3-10
9-30
0.8
20-25
5-8
1.5-3
SDH900
36
900
3-10
9-30
0.8
20-25
5-8
2-3
SDH1000
40
1000
3-10
9-30
0.8
20-25
5-8
2-3
SDH1100
44
1100
3-10
9-30
0.8
25-30
5-8
2-3
SDH1200
48
1200
3-10
9-30
0.8
25-30
5-8
2-3
SDH1300
52
1300
3-10
9-30
0.8
25-30
5-8
2-3
Product Overview
Grantseed Dredge Suction Hose is designed for demanding dredging applications involving the transfer of sand, slurry, gravel, mud, and sediment under vacuum conditions.
Constructed with an abrasion-resistant synthetic rubber tube, high-strength textile reinforcement, and fully embedded steel wire coils, the hose provides excellent vacuum resistance, flexibility, and long-term durability in harsh marine environments. The reinforced structure helps prevent collapse while maintaining stable material flow during continuous suction operations.
Engineered for cutter suction dredgers, harbor maintenance, river dredging, land reclamation, offshore construction, and mining slurry transport, the hose delivers reliable performance where severe abrasion and heavy-duty operation are common challenges.
Its weather-resistant outer cover withstands seawater, UV exposure, ozone, and changing environmental conditions, making it suitable for both offshore and inland dredging projects.
Available in diameters ranging from 12 inch to 52 inch, Grantseed Dredge Suction Hose can be supplied with various flange configurations and customized specifications to meet specific project requirements.
Key Benefits
Excellent abrasion resistance for sand and slurry transport
Superior vacuum resistance with embedded steel wire reinforcement
Resistant to seawater, weather, and UV exposure
Flexible construction for easier installation and operation
Suitable for large diameter dredging systems
Available with customized flange and connection options
Technical Specifications
Hose Construction
Item
Specification
Tube
Abrasion-resistant synthetic rubber
Reinforcement
High tensile strength fabrics with steel wire structure
Steel Support
Fully embedded steel wire coils
Cover
Synthetic rubber resistant to abrasion, weather, seawater and oil
Temperature Range
-25°C to +80°C (-13°F to +176°F)
Maximum Working Pressure
35 Bar
Cover Finish
Black with orange spiral stripe or orange polyurethane coating
Available Sizes
Item Code
Size (Inch)
ID (mm)
Working Pressure (Bar)
Burst Pressure (Bar)
Vacuum (Bar)
Wear Layer (mm)
Cover Thickness (mm)
Length (m)
SDH300
12
300
3-10
9-30
0.8
10-15
5
1-3
SDH400
16
400
3-10
9-30
0.8
10-15
5
1-3
SDH450
18
450
3-10
9-30
0.8
10-15
5
1-3
SDH500
20
500
3-10
9-30
0.8
10-15
5
1-3
SDH550
22
550
3-10
9-30
0.8
10-15
5
1-3
SDH600
24
600
3-10
9-30
0.8
10-15
5
1.5-3
SDH650
26
650
3-10
9-30
0.8
15-20
5
1.5-3
SDH700
28
700
3-10
9-30
0.8
15-20
5
1.5-3
SDH750
30
750
3-10
9-30
0.8
15-20
5
1.5-3
SDH800
32
800
3-10
9-30
0.8
15-20
5
1.5-3
SDH850
34
850
3-10
9-30
0.8
20-25
5-8
1.5-3
SDH900
36
900
3-10
9-30
0.8
20-25
5-8
2-3
SDH1000
40
1000
3-10
9-30
0.8
20-25
5-8
2-3
SDH1100
44
1100
3-10
9-30
0.8
25-30
5-8
2-3
SDH1200
48
1200
3-10
9-30
0.8
25-30
5-8
2-3
SDH1300
52
1300
3-10
9-30
0.8
25-30
5-8
2-3
Dredging Project Applications
River Dredging
Removing accumulated sediment and debris to maintain navigable waterways and improve flood control capacity.
Harbor Dredging
Ensuring safe vessel movement and maintaining required water depths for commercial port operations.
Land Reclamation
Transporting large volumes of sand and slurry for coastal development and expansion projects.
Offshore Dredging
Supporting marine engineering, seabed excavation, and offshore infrastructure construction.
Mining Slurry Transport
Handling abrasive mineral slurries and aggregates in mining, quarrying, and industrial operations.
Dredging Hose System Solutions
How Dredge Suction Hose Works in a Dredging System
A dredge suction hose is installed between the dredge pump and the underwater suction head. It transfers sand, slurry, mud, sediment, and dredged materials from the seabed into the dredging system.
A complete dredging pipeline system typically includes:
Dredge Suction Hose
Dredge Pump
Floating Discharge Hose
Rubber Discharge Hose
Steel Pipeline
Booster Pump Station
Together these components create a continuous material transportation system for dredging and land reclamation projects
Dredge Suction Hose vs Dredge Discharge Hose
Both hose types are essential components of modern dredging systems, but they serve different functions.
Feature
Dredge Suction Hose
Dredge Discharge Hose
Function
Material intake
Material transportation
Vacuum Resistance
High
Medium
Internal Structure
Steel wire coil reinforcement
Fabric and steel reinforcement
Installation Position
Before dredge pump
After dredge pump
Main Purpose
Suction
Discharge
Most dredging projects use both suction and discharge hoses together to create a complete dredging pipeline system.
Large Diameter Dredging Hose Options
Grantseed manufactures large diameter dredging hoses ranging from 12 inch to 52 inch to accommodate different dredger capacities and project requirements.
Small Dredgers
12" to 20"
Suitable for river dredging, inland waterways, and small dredging vessels.
Medium Dredgers
24" to 32"
Designed for port maintenance, harbor dredging, and coastal engineering projects.
Large Cutter Suction Dredgers
34" to 52"
Ideal for offshore dredging, land reclamation, mining projects, and major infrastructure developments.
Custom diameters and configurations are available upon request.
Flange & Connection Options
Reliable connections are essential for maintaining system integrity and minimizing downtime.
Available Connection Types
Fixed steel flange
Loose steel flange
Customized flange assemblies
Rubber-faced flange options
Heavy-duty marine flange systems
Connection Benefits
Secure hose attachment
Reduced leakage risk
Faster installation
Simplified maintenance
Improved operational safety
Customized drilling patterns and flange standards are available according to project requirements.
Why Flexible Dredging Hose Matters
Flexible dredging hoses offer several advantages over rigid steel pipelines in marine and dredging operations.
Easier Installation
Flexible hoses reduce installation time and simplify transportation and handling.
Better Vessel Movement Compensation
They absorb movement caused by waves, tides, and vessel operation, reducing stress on connected equipment.
Reduced Mechanical Stress
Flexible construction minimizes vibration transmission and protects pumps, flanges, and pipelines.
Lower Maintenance Costs
Reduced mechanical wear helps lower maintenance requirements and improve service life.
Improved Operational Efficiency
Flexible dredging hoses provide reliable material flow while adapting to changing operating conditions.
Why Choose Grantseed
Specialized Dredging Hose Solutions
We provide suction and discharge dredging hoses designed for demanding marine, mining, land reclamation, and slurry transport applications.
Large Diameter Manufacturing Capability
Available in sizes from 12 inch to 52 inch, our dredging hoses can be customized to meet different dredger capacities and project requirements.
Custom Engineering Support
Custom flange standards, hose lengths, wear layer thicknesses, and connection configurations are available to suit specific operating conditions.
Reliable Global Supply
With extensive export experience and strict quality control, Grantseed delivers dependable dredging hose solutions to contractors, dredging companies, and equipment manufacturers worldwide.
FAQ
What is a dredge suction hose?
A dredge suction hose is a heavy-duty flexible hose used to transport sand, slurry, sediment, and dredged materials from the seabed into a dredging system under vacuum conditions.
What materials can this hose handle?
The hose is suitable for sand, gravel, mud, slurry, sediment, mineral slurries, dredged materials, and other abrasive mixtures.
Why is steel wire reinforcement important?
Embedded steel wire coils prevent hose collapse under vacuum conditions and maintain full flow capacity during dredging operations.
What is the difference between a dredge suction hose and a dredge discharge hose?
A suction hose transports material into the dredge pump, while a discharge hose transports material away from the pump to the discharge location.
Can the hose be used in seawater environments?
Yes. The hose is specifically designed to resist seawater, UV exposure, weathering, and marine operating conditions.
What is the maximum working pressure?
The hose is designed for a maximum working pressure of 35 Bar.
Can flange types be customized?
Yes. Various flange standards and customized connection configurations are available according to project requirements.
Is anti-static construction available?
Yes. Anti-static hose designs can be manufactured for applications requiring electrostatic discharge control.
What size dredging hose do I need?
The required size depends on dredger capacity, pumping distance, material characteristics, and project requirements. Our engineering team can assist with selection.
Is the hose suitable for offshore dredging projects?
Yes. The hose is widely used in offshore dredging, marine construction, land reclamation, harbor maintenance, and mining slurry transport applications.
