DUCTILE IRON PIPES AND PIPE FITTINGS K7 CLASS DN900

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Loading Port:
Tianjin
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TT OR LC
Min Order Qty:
22 pc
Supply Capability:
3000 pc/month

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Product Description:

  • Material : Ductile Cast Iron

  • Size Range : DN 80mm to DN 2000mm

  • Unit Effective Length : 6m or 5.7m

  • Manufacture Standard: ISO 2531:1998/ EN 545:2006/EN 598:2007

  • Annual capacity : 200,000 tons

  • Coating Exterior: Zinc 130g/m2 according to ISO 8179-1 and bitumen coating 70 microns.

  • Cement Interior: Portland Cement/ High Alumina Cement/ Sulphate Resisting Cement Lining according to ISO 4179

  • Special requirements on external coating and internal lining can be applied

  • We also provide accessories such as SBR/EPDM rubber gaskets, lubricant paste, pipe caps, PE sleeves, etc.

Additional Parts:

  • Each pipe is strictly inspected according to related standard to ensure permanently high performance.

  • Easy Installation at site and service free for life

  • Long Service Lifespan

  • Quotation will arrive you within 24hours once we get your inquiry.

  • We guarantee offering you a competitive price.

  • A copy of original inspection reports of pipes will be offered after shipment.

  • Photos of loading process will be sent to the customer after shipment effect.

  • We will follow-up the delivery progress after shipment effect and update to the customer on weekly basis.

 

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Q:What is the manufacturing process of ductile iron pipes? Thank you
Made of nodular cast iron: a strict chemical composition, the content of silicon in molten iron requirements than the original carbon gray cast iron, nodular cast iron in reduced manganese, phosphorus, sulfur content of two liquid iron tapping temperature cast iron is higher than the ash, than the compensation sphere, conceived at the disposal of liquid iron temperature. Off line ball three disposal, that is to add a liquid iron ball agent four inoculation disposal of five nodular cast iron activity is poor, thus shorten the larger, higher demand for pouring temperature and pouring system larger size, more use of the riser cold iron by one condensation heat treatment criterion six iron is iron carbon alloy carbon content greater than 2%, the carbon content in ordinary industrial pig iron containing C, SI and 2.5%--4%, and Mn, S, P and other elements, is a product of iron ores in blast furnace. According to the difference in the shape of the carbon in the pig iron, it can be divided into several kinds, such as steelmaking pig iron, forging pig iron and nodular cast iron.
Q:Ductile iron and gray iron is what are the advantages and disadvantages of it
Comparison of nodular cast iron and cast steelThe strength of nodular cast iron is comparable to that of cast steel. Ductile iron has higher yield strength, the lowest yield strength is 40K, while the yield strength of cast steel is only 36k. In most municipal applications, such as water, brine, steam, ductile iron has more corrosion resistance and oxidation resistance than cast steel. Because of the spheroidal graphite microstructure of nodular cast iron, nodular cast iron is superior to cast steel in reducing vibration ability, so it is more beneficial to reduce stress. An important reason for choosing ductile iron is that ductile iron costs less than cast steel. The low cost of ductile iron makes this material more popular, more efficient and less costly for ductile iron.
Q:How can the ductile iron pipe be tested?
Good command of pipe connection must be by hand when a pressure test, must be clear, on the back, pier, interface division, each part of the exhaust valve, must be responsible, then carefully inspected and clear and uniform pressure test.
Q:How to distinguish flexible and rigid interfaces between cast iron pipe joints
Rigidity is a way of connection that has been eliminated. Sealing is achieved by pouring cement into the spigot
Q:Ductile iron pipe connection mode
Main points of installation: (1) clean the pipe mouth: clean all the sundries in the mouth. Second, clean aprons, aprons on the adhesive material on the apron: clean up, put the ring bending "plum blossom" or "8" shaped into a socket groove, and hand along the entire ring press again, or with a rubber hammer, to ensure that each part of the warping apron is not twisted, evenly the card in the slot.
Q:Will nodular cast iron pipes rust?
Qualified ductile iron pipe requires lining standard cement. The outer wall of pipe needs spraying zinc treatment and asphalt paint coating, and other epoxy resin paint can also be selected. Qualified ductile iron pipes can be used for more than a hundred years. The main place where rust is easily exposed is where the outer wall meets the soil because of its high humidity and high oxygen content. Qualified anticorrosion can effectively resist rust, its process principle can not give you the details.
Q:What are the interface forms of ductile iron pipes? The best drawings are available. Thank you
Because of this interface and the corresponding T sealing aprons can withstand greater deflection angle and greater tolerances, especially suitable for unstable formations and corners.
Q:Can ductile iron pipes be made of flexible waterproof sleeves?
Usually, a bushing is used to make a pool. It is the conduit to the sink. However, the common casing is difficult to seal so that there is water leakage between the casing and the pipe and water leakage between the casing and the wall. Only the waterproof sleeve can solve the water leakage between the casing and the wall, but it can not solve the seal between the casing and the pipe, and the flexible waterproof bushing can solve two problems.
Q:Ductile iron pipe length is generally much
6 meters, the bassoon is also 8 meters!
Q:What is the difference between a PE fire hose and a ductile iron pipe?
Galvanized steel pipe: divided into cold galvanized steel pipe, hot galvanized steel pipe, cold galvanized steel pipe has been banned, and the latter is also advocated by the state for the time being. In 60s and 70s, developed countries began to develop new types of pipes, and galvanized pipes were banned. China's Ministry of construction and other four ministries also issued a civilization, indeed from two, 000 years since the galvanized pipe as a water supply pipe, the New District cold water pipe has rarely used galvanized pipe, and some of the hot water pipe is galvanized pipe. Hot dip galvanized steel pipe is widely used in fire, power and highway.

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