Smooth Surface Di Pipe Class K9 Polyurethane Internal Coating For
Sewerage
PU Ductile Iron Pipe Overview:
PU Ductile Iron Pipe is ductile iron pipe with a polyurethane
coating, polyurethane coating is made of bi-component polyurethane
materials to a scale, and not only does it serve as the
inner-lining material of nodular castiron pipe, but as related
outer errosion resistant coating. Polyurethane coating has many
advantages such as wonderful abrasive resistance, excellent
corrosion resistance, non-permeation, smooth surface, small
resistance coeffecient, few volatile organic compound,remarkable
environmental protection property, ect. Some polyurethane coatings
with a thickness of 900μm,are mainly applied to
transportingcorrosive mediums or the mediums with high sanitary
condition, including soft water, desalination seawater, municipal
wastewater, industrial wastewater, and others; and some with
thickness above 700μm are mainly applied to the soil environment
with strong corrosivity such as the soil polluted by industrial
wastewater or with low specific resistance.
For Potable Water
- ISO2531-2009:Ductile iron pipes,fittings,accessories and their
joints for water applications.
- EN545-2010: Ductile iron pipes,fittings,accessories and their
joints for water pipelines requirements and test method.
- ISO4179-2005:Ductile iron pipes and fittings for pressure and
non-pressure pipelines -- Cement mortar lining.
- ISO8179-2004:Ductile iron pipes -- External zinc-based coating --
Part 1:Metallic zinc with finishing layer.
- BS 3416:1991:Specification for bitumen-based coatings for cold
application,suitable for use in contact with potable water.
- ISO4633-2002:Rubber seals -- Joint rings for water supply,drainage
and sewerage pipelines--Specification for materials.
- ISO8180-2006:Ductile iron pipelines--Polyethylene sleeving for site
application.
- EN681-1 :Elastomeric seals. Material requirements for pipe joint
seals used in water and drainage applications Vulcanized rubber.
For sewage application
- EN598-2007:Ductile iron pipes, fittings, accessories and their
joints for sewerage applications. Requirements and test methods.
- ISO4633-2002:Rubber seals -- Joint rings for water supply, drainage
and sewerage pipelines -- Specification for materials.
- EN681-1:Elastomeric seals. Material requirements for pipe joint
seals used in water and drainage applications Vulcanized rubber.
The mechanical properties of pipes shall be as shown in the table,
Mechnical Properties | DN(MM) | Hydrostatic Test (Mpa) | Tensile Strength | Elongation | Hardness | Thickness of cement lining |
| (Rm/Mpa) | (%) | (HBS) | (mm) |
| DN80-DN300 | 5 | ≥420 | ≥10 | ≤230 | 3 |
| DN350-DN600 | 4 | ≥420 | ≥10 | ≤230 | 5 |
| DN700-DN1000 | 3.2 | ≥420 | ≥10 | ≤230 | 6 |
| DN1100-DN1600 | 2.5 | ≥420 | ≥7 | ≤230 | … |
Packing: bundled with steel belts or in bulk
Shipment: in bulk or container
Usage:
Much of the production of ductile iron is in the form of ductile
cast iron pipe, used for water and sewer lines. Ductile cast iron pipe is stronger and easier to tap, requires less support and provides
greater flow area compared with pipes made from other materials
like PVC, concrete, polyethylene or steel. Ductile Iron Pipe is the
most widely-used pipeline product in water supply and water
drain/sewage projects.
Our advantages:
There are lots of qualified managers and technicians, and a
well-trained team of after-sales service, which provides all
services of manufacture, package, transportation and installation.
We are looking forward to cooperating with friends from abroad and
home creating a brighter future.
