Low Specific Resistance PU Ductile Iron Pipe C Or K9 Unit Length 5.7M

Low Specific Resistance PU Ductile Iron Pipe C Or K9 Unit Length 5.7M

PU Ductile Iron Pipe

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, smmoth 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.

Internal and external Classification:

1. Common coating

Ordinary portland cement mortar is coated internally while zinc and bituminous paint is painted externally.

2. The internal coating of sulfate cement mortar

Sulfate cement, also known as high sulfate-resistant cement, has a good sulfate corrosion resistance and a wide application in transporting some highly corrosive mediums such as seawater.

3. The internal coating of aluminate cement mortar

The ductile iron pipe for sewer line complying with ISO7186, EN598 and GB/T26081 is coated with aluminate cement (also known as high-alumina cement) internally, with a result of excellent resistance to chemical corrosion and abrasive resistance which is much more suitable for transporting rainwater, sanitary sewage and some kinds of industrial sewerage water.

4. Zinc-Aluminum coating

The outside surface of cast iron pipe is coated with Zinc-Aluminum coating (85%Zn+15%Al) weighed 400g/m2, which is suitable for soil with higher corrosivity.

5. The internal coating of epoxy ceramic

The interior of epoxy ceramic is made of epoxy resin, quartz powder and others with a dry film thickness of more than 1,000μm, and the excellent corrosion resistance electrical insulating property makes it be a preferential position in transporting municipal sewage, reclaimed water, etc.

6. Epoxy resin seal coating

The cast pipe with epoxy resin sealing coating is equal to a cement inner-lining coated by a layer of epoxy resin sealing, whose thickness is determined in accordance with the characteristics of transmission medium, and has wonderful abrasive resistance and corrosion resistance. Thanks to the seal coating, the precipitation of hazardous substance is effectively resisted, commendably avoiding the pollution to transmission medium and more suitable for the direct delivery of drinking water.

7. Polyurethane coating

Polyurethane coating is made of bi-component polyurethane materials to a scale, and not noly does it serve as the inner-lining material of nodular cast iron pipe, but as related outer erosion resistant coating. Polyurethane coating has many advantages such as wonderful avrasive resistance, excellent corrosion resistance, non-permeation, smooth surface, small resistance coefficient, few volatile organic compound, remarkable environmental protection property, etc. Some polyurethane coatings with a thickness above 900μm are mainly applied to transporting corrosive 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.

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.