Benefits of HDPE


  • High impact strength
  • Excellent corrosion resistance
  • Very good chemical resistance
  • Excellent abrasion resistance
  • Chemically inert and unaffected by acidic soil
  • Biologically inert against micro organisms
  • Can be fusion welded, ensuring absolutely leak free systems
  • Very smooth bore and low friction loss k=0,002mm and C=150) and maintaining this smoothness throughout its useful life
  • Low mass (about 1/8 of steel) and ease of handling
  • High fl exibility, enabling long lengths to be coiled
  • Inherent resistance to effects of ground movement
  • Non toxic and safe for drinking water
  • Low installation cost and maintenance free
  • Large range of sizes, from 16 2 000 mm
  • Very suitable for rehabilitation of old pipelines through trenchless technologies

Applications

Some typical applications of HDPE pipes are listed

below:


Mining (Surface and Underground)

Polyolefi n pipes have yielded excellent results when used in mining applications. Owing to their high abrasion and corrosion resistance, ease of handling and installation and their high mechanical strength,

they are ideal for -

  • Tailings (slurries and effl uents)
  • Irrigating leaching piles
  • Acid and alkaline solutions
  • Concentrate pipelines (Reduction works and
  • Drainage)
  • Fire fighting installations
  • Drinking water lines
  • Chilled water lines
  • Compressed air lines
  • Ventilation ducting
  • Vacuum lines (Drum fi lter)

Agriculture/Irrigation

HDPE pipes are put to various uses in agriculture.


By means of the non-permanent coupling system, rapid coupling and uncoupling is possible. Moreover because fl exible can be coiled, which facilitates transport (they can be supplied in 50m, 100m or larger coils)

Some applications are:


Spray irrigation (Acids, Ammonia, Brine, Carbon Dioxide, Sugar solutions, Syrups, Fertilizers, etc.)

Water pipes


Fishing

In the fishing industries, the use of HDPE pipes is increasing. Because of their lightweight and easy handling, resistance to salt water and attack by marine organisms, they are ideal for these applications, amongst others:

  • Salmon breeding cages
  • Maritime discharge and suction (Abalone farms)
  • Salt water

Water supply

Polyolefi n pipes offer distinct advantages over other materials (e.g. steel, fi bre cement, concrete, etc.) especially when used for water supply and in areas with a high water table, in which their installation is simplified by jointing outside the trench.


Some examples:

  • Potable water reticulation
  • Sewage works
  • Water Works & Water Treatment Plants

Furthermore, because of their fl exibility and low weight, they are ideal for use in underwater environments in various applications, such as undersea outlets/outfall sewers.


Chemical/Steel/Refineries


In the chemical industry, HDPE pipes have produced excellent results. Owing to their high resistance to corrosion, chemicals and abrasion, they are ideal for:


  • Conveying acid and alkaline solutions
  • Conveying chemical products (Bleach, Peroxides,
  • Dye Liquors, Sulphide Water, Hot effl uent)
  • Conveying water under pressure
  • Fire-fi ghting systems

General

HDPE pipe systems have been used successfully in hundreds of applications, general as well as highly specialised, in industrial and civil sectors. The most common appllications are the following:


  • Compressed air and ventilation air
  • Protection of electrical and telephone cables
  • High temperature liquids and gases
  • Gas, petroleum and its derivatives
  • Corrosive waste water, hot effl uents
  • Water
  • Pneumatic transport
  • Drainage and Sub-Soil Drainage
  • Dewatering

Technical information, courtesy of SAPPMA



          Measurements in millimetres


OD

50

63

75

90

110

125

140

160

180

200

OD

225

250

280

315

355

400

450

500

560

630


HDPE PIPES


OD

50

63

75

90

110

125

140

160

180

200

OD

225

250

280

315

355

400

450

500

560

630


FLANGES


OD

50

63

75

90

110

125

140

160

180

200

OD

225

250

280

315

355

400

450

500

560

630


SMOOTH BENDS


OD

50

63

75

90

110

125

140

160

180

200

OD

225

250

280

315

355

400

450

500

560

630


REDUCERS


From

40

40

40

50

50

50

63

63

63

75

To

20

25

32

25

32

40

32

40

50

32

From

75

75

75

90

90

90

110

110

110

110

To

40

50

63

50

63

75

50

63

75

90

From

125

125

125

125

140

140

140

140

160

160

To

63

75

90

110

75

90

110

125

90

110

From

160

160

180

180

180

180

180

200

200

200

To

125

140

90

110

125

140

160

140

160

180

From

225

225

225

225

250

250

250

250

280

280

To

140

160

180

200

160

180

200

225

200

225

From

280

315

315

315

315

355

355

355

355

355

To

250

200

225

250

280

200

225

250

280

315

From

400

400

400

400

400

450

450

450

450

500

To

225

250

280

315

355

280

315

355

400

280

From

500

500

500

500

560

560

560

560

630

630

To

315

355

400

450

355

400

450

500

355

400

From

630

630

630








To

450

500

560









For more detailed information about our products, please download a copy of a SAPPMA technical Manual


Click here to

DOWNLOAD 


Document size: 18.8MB



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