UHMWPE Dredging Pipe

High-performance Slurry Transport

Uhmwpe dredging pipe ensures superior wear and corrosion resistance, ideal for marine slurry transport, offering flexibility and durability in harsh dredging environments.

UHMWPE Dredging Pipe Wear-Resistant Pipe Slurry Pipeline Corrosion Resistance +2 More

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UHMWPE Dredging Pipe

High-performance Slurry Transport

Uhmwpe dredging pipe ensures superior wear and corrosion resistance, ideal for marine slurry transport, offering flexibility and durability in harsh dredging environments.

UHMWPE Dredging Pipe Wear-Resistant Pipe Slurry Pipeline Corrosion Resistance +2 More

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UHMWPE (Ultra-High Molecular Weight Polyethylene) dredging pipes offer exceptional abrasion resistance, corrosion protection, and flexibility for marine and slurry transport applications.

UHMWPE Dredging Pipes are manufactured using Ultra-High Molecular Weight Polyethylene, a high-performance polymer known for its exceptional wear resistance, chemical inertness, low friction, and impact toughness. These characteristics make UHMWPE pipes a top choice for transporting abrasive media such as sand, silt, mud, and gravel in dredging, mining, and marine construction projects.

Unlike traditional steel or rubber hoses, UHMWPE dredging pipes are lightweight and floatable, often used in combination with floating collars or pontoons, reducing the need for complex supports. Their low friction coefficient reduces energy consumption during pumping, and their flexibility allows for easy installation in curved or shifting marine terrains.

The high density and molecular weight (≥2 million g/mol) give UHMWPE excellent performance against abrasion and saltwater corrosion, even under continuous heavy-duty operations. It is widely used in port expansion, land reclamation, river dredging, and coastal sediment pumping.

UHMWPE pipes are available in various diameters and wall thicknesses, making them suitable for a range of applications. Whether you're transporting coarse sand, fine silt, gravel, or mud, UHMWPE pipes can provide long-term durability and performance, enhanced by their ability to withstand extreme conditions and adapt to changing marine environments.

Material Features

Molecular weight: 3–6 million g/mol
Abrasion resistance: 15× greater than steel
Friction coefficient: 5× lower than steel
Impact strength: 5× stronger than HDPE
Service life: 3× longer than steel pipes

Structural Parameters

Diameter range: 20mm – 1200mm
Wall thickness: Up to 65mm
Weight: ~1/8 of steel
Bending radius: Up to 30× pipe OD
Single-layer or steel-reinforced options

Typical Applications

Harbor and coastal dredging
Mining slurry transport
Chemical fluid handling
Wastewater treatment
Riverbed and seabed reclamation
Floating marine pipeline systems

Performance Advantages

Leak-free and anti-scaling surface ensures smooth flow
Inert to seawater, acids, alkalis, and solvents
Customizable connections: flanged, welded, floating
Reduces installation time and equipment costs
Eco-friendly with lower energy and pumping costs

Compared to traditional HDPE or steel pipes, UHMWPE dredging pipes outperform in flexibility, lifespan, and chemical resistance, making them the ideal solution for challenging environments and modern dredging operations.

What is UHMWPE?

Ultra-high molecular weight polyethylene pipe has superior performance over conventional HDPE pipe such as very high wear resistance, impact resistance, excellent resistance to internal pressure strength, resistance to environmental stress cracking, intrinsically self-lubricating, anti-adhesion, low temperature resistance and excellent chemical resistance.

With a molecular weight typically between 3.5 and 9.2 million g/mol, UHMWPE exhibits superior wear resistance, impact strength, and chemical stability, far exceeding conventional polyethylene or metal pipes in durability and performance.

Superior Wear Resistance

Offers 15× the wear resistance of steel and 4× that of stainless steel, ideal for high-abrasion conditions.

Lightweight Design

Weighs 8× less than steel (specific gravity 0.93–0.95), lowering transportation and installation costs.

Chemical Resistance

Excellent resistance to acids, alkalis, and organic solvents with zero corrosion in chemical environments.

UHMWPE Pipe Specifications

The specifications of Ultra-High Molecular Weight Polyethylene (UHMWPE) pipes can vary based on the manufacturer, application, and specific requirements. However, here are some common specifications that are often associated with UHMWPE pipes:

Common Specifications of UHMWPE Pipes (Wall Thickness in mm)
DN mm	Wall Thickness (Working Pressure)
DN mm	0.6 MPa	0.8 MPa	1.0 MPa	1.25 MPa	1.6 MPa	2.0 MPa
65					8	9
96					9	10
110					8	10
130				8	10	12
159				10	12	15
168			8	10	13	16
205		8	10	12	15	18
219		9	11	13	16	20
236		10	12	14	18	22
250		10	12	15	19	23
273	9	11	13	16	21	25
280	9	11	14	17	21	26
300	10	12	15	18	23	27
315	10	12	15	19	24	29
325	10	13	16	19	24	30
350	11	14	17	21	26	32
377	12	15	18	22	28	35
400	12	16	19	24	30	36
415	13	16	20	25	31
426	13	17	20	25	32
536	16	21	26	23
560	16	22	27	33
630	19	25	30	37
652	20	26	32	38
710	21	27	34
800	23	31	38

Custom sizes available, where moulds already exist from 20–1400 mm OD, up to 65 mm wall thickness. Product can be manufactured in any colour and to all conformance requirements.

Property	Value	Unit
Molecular Weight	3.5 - 9.2 million	AMU
Specific Gravity	0.93 - 0.95	g/cm³
Tensile Strength	39 - 48	MPa
Impact Strength	Highest among thermoplastics	-
Operating Temperature	-200 to +80	°C
Friction Coefficient	0.05 - 0.15	-

Parameter	Range	Standard
Nominal Diameter	65 - 1200 mm	ISO 21304-1
Wall Thickness	8 - 45 mm	Custom
Standard Length	Up to 12 m	Custom
Pressure Rating	Up to 1.6 MPa	PN16
SDR Range	SDR11 - SDR33	ISO Standard
Tolerance	±1% diameter	Precision

UHMWPE is more durable and abrasion-resistant than HDPE. Its long polymer chains provide superior resistance to wear, allowing it to last up to 10 times longer than HDPE in high-wear applications. However, HDPE is easier to machine and weld, making it suitable for applications requiring fabrication.

Low melting point: Not suitable for high-temperature applications.
Limited UV resistance: Degrades under prolonged sunlight exposure.
Difficult to bond: Requires special adhesives or surface treatments.
Limited wear resistance in abrasive environments: Less effective than ceramics or metals.
Not ideal for high-load bearings: Low modulus may cause deformation.
Difficult to machine: Needs special tools due to high molecular weight.
Sensitive to oxidation: Degrades mechanical properties at elevated temperatures.
Water absorption: Can affect dimensional stability and strength.

Despite these drawbacks, UHMWPE remains useful for applications where its unique combination of durability and chemical resistance is advantageous.

The better material depends on the application:

UHMWPE: Ideal for industrial settings where friction, impact, and wear resistance are critical.
HDPE: Better for projects requiring welding or fabrication, such as chemical storage tanks or 3D-printed parts.

High abrasion resistance: Withstands significant wear, ideal for abrasive material transport.
Excellent impact strength: Absorbs high energy without damage.
Low coefficient of friction: Reduces friction and wear, lowering pumping costs.
Good chemical resistance: Suitable for various industrial chemicals.
Lightweight: Easier to install and transport than steel.
Low maintenance: Resists scaling and fouling.
Wide temperature range: Performs well in low to moderate temperatures.

Dredging and mining: Transporting slurries, sand, gravel.
Chemical processing: Transporting corrosive and abrasive chemicals.
Water and wastewater: Used in treatment facilities.
Food processing: FDA/USDA-approved grades used safely in food industries.
Construction: Used in tunnel escape routes and impact-resistant applications.

Low melting point: Unsuitable for high-temperature use.
Creep: May deform under long-term stress.
Cost: Higher initial cost compared to some alternatives.

Surface finish: Should be smooth, uniform, and bright.
Density: Pure UHMWPE floats in water; lower quality sinks.
End finish: Smooth, round ends with good verticality.
Flanging: UHMWPE can be flanged by heating; HDPE requires a stub end weld.

Yes, UHMWPE is available in several grades, each tailored for specific use cases:

Virgin UHMWPE: Standard grade for general use.
Reprocessed UHMWPE: Budget option for less critical applications.
Anti-static UHMWPE: Prevents static buildup.
Tivar: Designed for maximum wear resistance.
Tivar DrySlide: Combines anti-static and self-lubricating properties.

Industrial Applications

UHMWPE pipes are trusted across industries for their extreme abrasion resistance, chemical stability, and lightweight flexibility.

Mining & Mineral Processing

Transporting abrasive slurries, tailings, and mineral concentrates with 4–7x longer service life than steel pipes.

Dredging & Marine

Natural buoyancy and corrosion resistance make it ideal for floating pipeline systems in dredging applications.

Power Generation

Reliable in handling fly ash, bottom ash, and high-temperature residues with reduced energy losses.

Chemical Processing

Safely handles corrosive fluids, solvents, and chemical effluents with excellent resistance properties.

Food & Beverage

Smooth, non-stick surfaces prevent bacterial adhesion and meet hygienic standards in food-grade systems.

Medical & Pharmaceutical

Used in drug delivery, cleanroom piping, and medical devices due to its biocompatibility and purity.

UHMWPE Dredging Pipe