Syi China Manufacturer DN80-DN2000 ISO2531 En598 K9 C40 C30 C50 PU Coating Ductile Iron Pipe

Product Description

Polyurethane PU coating Ductile Iron Pipes
Description

SYI can supply the Centrifugally Cast Ductile Iron Tyton Push-in Joint Socket and Spigot Pipe according to ISO2531, EN545, EN598 from DN80 to DN2000, including K7, K8, K9, K10,K12, K14, C20, C25, C30, C40, C50, C64, C100, with the coating of Metallic Zinc (130-400g/m2), Zn-Al Alloy 85/15, Black Bitumen coating, Red/Blue Epoxy coating, Cement lining or PU or PUA (polyurethane) coating (as per EN 15198) for new water.

Thickness of PU Internal Coating for Water Supply
Min. Thickness of pipe (µm)	Min. Thickness of inside joint (touch water) (µm)	Min. Thickness of inside joint (no touch water) (µm)
900	250	150
Thickness of PU Internal Coating for Sewerage
Min. Thickness of pipe (µm)	Min. Thickness of inside joint (touch water) (µm)	Min. Thickness of inside joint (no touch water) (µm)
900	250	150
1000	250	150

Items		Specifications	Test Method
Solid content		100%	ASTM D 1259
VOCs		0%	ASTM D 2369
Hardness		≥ 70 Shore D	ASTM D 2240
Impact strength		≥ 8J	ASTM D 2794
Volume resistivity		≥ 1x1013 Ω.m	ASTM D 257
Flexibility, 180º axis bending 102mm mandrel		The coating has no cracking and delamination	ASTM D 522
Water vapor permeability		≤3 mg/24h. cm2	ASTM E69
Water absorption		≤ 3%	ASTM D 570
Cathodic disbonding		≤ 10mm	ASTM G8
Salt fog resistance, 1000h		No change in coating	ASTM B117
Resistant to chemical medium corrosion, soak for 30d	10% hydrochloric acid, 30%NaOH, 30% sodium chloride, 10% sulfuric acid	After soaking 1mm thick sample for 30 days, the change of sample quality and size must be stable and the change is less than 5%	ASTM D543

Feature:
1.100% solid content, no volatile organic compounds, in line with environmental requirements;
2.With excellent corrosion resistance, wear resistance and impact resistance, it can be used to transport waste water, industrial water and surface water with high content of solid particles, as well as the environment where the pipe installation tilt Angle is large resulting in high flow rate;
3.Smooth surface, with the characteristics of small friction resistance, excellent hydraulic performance;
4.Lining sanitation, can be used to transport drinking water, reliable sanitation;
5.Coating does not scale, the water will not be polluted by microorganisms in the water or oxidation rust, no secondary pollution, can ensure permanent water flow and water cleanliness unchanged.

 

PU Internal Coating Application:

1.Can be used for water supply projects, can also be used to transport waste water with a high content of solid particles,
industrial water and surface water, and pipe installation when the tilt is large, resulting in high flow rate environment.
2. PU lined ductile iron pipes in line with the requirements of the standard can transport all types of water, domestic sewage and various types of industrial waste water, ductile iron pipes can not transport less than PH1 or more than PH13 sewage.

 

PU External Coating Application:

External corrosion protection of pipelines in highly corrosive soil environment, for example:
1.Through the sea, salt, marsh and other humid areas;
2.Resistivity <750 ω.cm;
3.Acid peat soil;
4.Soil containing garbage, oxide scale, slag or contaminated by waste water or industrial waste liquid, or requiring special reinforced protective coating.

Production Process
Quality Control
Transportation
Transporting:

1.DN80-DN300: Usually by bundles;

2.DN350-DN2000: Usually by bulk;

3.During transportation, the pipes are fixed by timbers, blocks, nails & steel ropes with cushions at the side in possible moving directions;

4.Bulk or containers for shipment, and trucks or train for inland transport.

Government Audits
Company