Rubber Dredge Hose Discharge Application, Floating and Non-Floating

Denialink offers, new made and second hand, flexible rubber dredge hoses.
These dredge hoses are available in floating and non-floating series, with internal diameters (ID’s) of 1200 mm for the new made ones and up to ID 600 mm for the second hand ones.

The new made dredge discharge flexible dredge hoses.
Rubber dredge hoses are purpose built to the special requirements of our clients.
We are in the position to build dredge hose sizes ranging from 100 mm ID to 2200 mm ID.
Our designers will select the most appropriate materials from a wide range of products available to us to meet service and demands requested by our clients i.e. in regard to wear resistance, pressure ratings, tensile strength, bending capabilities and so on.

In general the Rubber Dredge Hoses consist out of an inner lining adjusted to the specific requirement of transported media.
Wear indicator layers can be implemented in the dredge hoses which transport abrasive media.
A textile reinforcement of high tensile strength will control the pressure resistance of the dredge hose as well as the tensile strength.
Where as the outer cover is built up by a rubber compound highly resistant against weathering, UV lights and Ozone.
On special request the outer cover can be built with oil resistant materials.

Dredge hose end fittings are available in a wide variety which are selected on duty requirements.
Discharge Dredge Hoses
Suction Dredge Hoses
Floating Dredge Hoses
Pre-Shaped Dredge Hoses
Armoured Dredge Hoses

The Second Hand Dredge Discharge Rubber Flexible Hoses
Denialink supplies a wide range of used (second hand) floating and submarine (non-float) rubber flexible hoses. The size of the internal diameters (ID) ranges from 24” (600 mm), 20” (500 mm), 16” (400 mm), 12” (300 mm), 10” (250 mm), 8” (200 mm) to 6” (150 mm). Other diameters and special requirements can also be supplied upon request and availability.

These hoses proceed mainly from the oil industry and are manufactured under the strict requirements of the Oil Companies International Marine Hose Guide (OCIMF). Manufacturers like Dunlop, Trelleborg, Bridgestone, Manulli,, Good Year, Yokohama, and Emstec all manufacture their hoses with slight variations, but all according to the OCIMF guidelines.

Technical information given is of new build status.

TECHNICAL INFORMATION OF THE FLOATING DOUBLE CARCASS HOSES:

Fittings
Fittings are built-in with carbon steel weld neck flanges, drilled ANSI B. 16.5 - Class 150.

Pressure rating
225 psi ; 15 bar

Wall thickness
151mm

Test Pressure (min)
225 psi ; 15 bar

Hose Bore
See table

Working Pressure
225 psi (15 bar), 285 psi (19 bar) or 315 psi (21 bar)

Burst Pressure (min)
1125 psi 77 bar

Minimum Bend radius
6 times nominal Hose bore

Lining
Synthetic oil resistant rubber with high strength breaker plies impregnated and coated with high grade synthetic rubber to achieve maximum adhesion of the lining to the hose carcass.

Reinforcement
Multiple lies of high tensile reinforcing materials, with outstanding resistance to fatigue, applied at precise angles to achieve maximum strength and flexibility with minimum elongation.
Fully embedded steel wire coils are incorporated to achieve kink, crush and local load resistance.

Cover
Synthetic rubber, resistant to abrasion, weathering, sea water and oil. The cover, which incorporates reinforcing breaker plies is black with a bright orange spiral stripe or coated in tough bright orange polyurethane.

Closed cell expanded foam giving a minimum reserve buoyancy of minimum 20% over the entire hose length.

Transport loads.

Hoses can be transported via road on truck trailers or via sea transport in Open Top Containers 40 feet containers. (OT 40’).
As an indication of the loading volume please find below a guide to the loading capacity of each hose type into one 40’ OT container:

6” (150 mm) hoses 25-30 numbers
8” (200 mm) hoses 20-25 numbers
10”(250 mm) hoses 15-20 numbers
12”(300 mm) hoses 9-10 numbers
16” (400 mm) hoses 7- 8 numbers
20” (500 mm) hoses 5- 6 numbers
24” (600 mm) hoses 4 numbers

For more information please fill in the contact form, click here.

TECHNICAL INFORMATION ON SUBMARINE DOUBLE CARCASS HOSES :

Fittings
Fittings are built-in with carbon steel weld neck flanges, drilled ANSI B – Class 150.

Pressure rating
225 psi 15 bar

Test Pressure (min)
225 psi 15 bar

Working Pressure
225 psi (15 bar), 285 psi (19 bar) en 315 psi (21 bar).

Burst Pressure (min)
1125 psi 77 bar

Minimum Bend radius
4 times nominal Hose bore

Lining
Synthetic oil resistant rubber with high strength breaker plies impregnated and coated with high grades synthetic rubber to achieve maximum adhesion of the lining to the hose carcass.

Reinforcement
Multiple lies of high tensile reinforcing materials, with outstanding resistance to fatigue, applied at precise angles to achieve maximum strength and flexibility with minimum elongation.
Fully embedded steel wire coils are incorporated to achieve kink, crush and local load resistance.

Cover
Synthetic rubber, resistant to abrasion, weathering, sea water and oil. The cover, which incorporates reinforcing breaker plies is black with a white longitudinal alignment stripe.

The hose design meets or exceeds the Oil Companies International Marine Forum Hose Guide (OCIMF).

Rubber Hoses and other rubber products on dredgers.
These are the suction hoses, discharge hoses and compensator hoses and rubber products such as bottom door seals and bottom valve seals hatches.

For more information please fill in the contact form, click here.