PE Float

PE Float without Location Slot

PU-filled PE float with plain bore, buoyancy 150-5000kg, ID 110-1200mm, seamless shell.

Specifications for PE Float without Location Slot
Product Name	PE Float without Location Slot
Inner Diameter (ID)	110-1200 mm
Outer Diameter (OD)	500-2300 mm
Length	500-2500 mm
Buoyancy	150-5000 kg
Shell Material	Polyethylene
Core Material	High-density closed-cell polyurethane foam
Application	Buoyancy for HDPE or steel pipe in offshore dredging pipelines
Origin	China

Get a quotation Email specifications

Specifications are supplied per order within the ranges shown. Send the flange drawing or the details of the section being replaced and the connection is machined to match.

Overview

The plain-bore PE float is the straightforward buoyancy unit for marine engineering and dredging pipelines. Polyethylene shell, high-density closed-cell polyurethane foam core, clamped around the pipe with bolts. Without the location slot it fits a wider range of pipe profiles and is quicker to install, and it carries the same impact resistance and buoyancy characteristics as the slotted version.

Who it is for

Dredging and marine contractors adding buoyancy to HDPE or steel pipe where positive location on the pipe is not required.

Key benefits

Outstanding resistance to seawater, chemicals and oil, and does not rust
Service life significantly longer than a steel float
Does not permanently deform or crack under collision or compression, including in ice zones
Seamless weld-free shell eliminates the leakage path a welded float has
High-density polyurethane foam fill provides buoyancy from tens of kilograms to several tons
Low maintenance cost, easy installation and light weight reduce transport and installation cost

Problems it solves

What goes wrong without it

1

Steel floats rust and flood through a failed weld, and each one has to be maintained and eventually replaced.

2

Air-filled floats are a single puncture away from useless. Closed-cell foam keeps buoyancy after impact.

3

Heavy buoyancy units slow installation and need lifting gear. A PE float is light enough to handle with the crew already on site.

Construction and technical features

Outer shell: polyethylene, seamless and weld-free
Core: high-density closed-cell polyurethane (PU) foam
Plain bore suits a range of pipe profiles
Clamp-type bolt holes for assembly around the pipe
Buoyancy range from 150 kg to 5000 kg per unit

Quality control

Appearance inspection: surface free from cracks, bubbles, dents and deformation, with uniform colour and no visible impurities
Dimensional accuracy: outer diameter, inner diameter, wall thickness and mould seam deviation checked against specification to ensure correct pipe matching
Structural integrity: position, quantity and strength of clamp-type bolt holes verified, and sealing performance confirmed after assembly
Physical performance testing including density and buoyancy verification
Third-party inspection can be arranged on request

Where it is used

Floating HDPE discharge lines in sheltered water
Steel pipe floating lines where clamping already fixes position
Temporary floating runs repositioned frequently between phases
Replacement of corroded steel floats on an existing line

Customisation

Inner diameter 110-1200 mm to match the pipe being floated
Outer diameter 500-2300 mm and length 500-2500 mm set by required buoyancy
Buoyancy specified from 150 kg to 5000 kg per unit
Bolt hole pattern set for the clamping arrangement

How it compares

This version is simpler and faster to fit than the slotted float and suits a wider range of pipe profiles. If floats have been migrating along the line under current or wave action, the location slot version is the one that fixes that. Shell material, foam core, size range and buoyancy range are identical.

Selection and use notes

Size the float bore to the actual pipe outer diameter
Work out float count from the flooded line weight, allowing margin for the medium
Check clamp torque after the line has been in service a few days
Log shell impact damage even though foam fill keeps the float buoyant

FAQ

Questions buyers ask

What is the buoyancy range?

150 kg to 5000 kg per float, depending on the size selected.

What pipe diameters does it suit?

Inner diameter 110-1200 mm, outer diameter 500-2300 mm, length 500-2500 mm.

Should I choose this or the location slot version?

Choose this one for simpler, faster installation across a range of pipe profiles. Choose the location slot version when the float must not rotate or slide along the pipe.

Is the shell welded?

No. The shell is seamless and weld-free, which removes the leakage path a welded float has.

How does it compare with a steel float?

It resists seawater, chemicals and oil, does not rust, and its service life is significantly longer than a steel float's.

Can it be inspected before shipment?

Yes. Appearance, dimensional, structural and physical performance testing are carried out, and third-party inspection can be arranged.