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Product Description:

CNBM ductile iron pipe ranges from DN80-DN1600mm (T-Type, Class K9), effective length 6m, comply with ISO2531 Standard

Company Profile

CNBM International Corporation is the leading production base and renowned supplier of Ductile Iron Water Pipe systems of both potable and waste water in China. We are constantly looking to develop high quality products to ensure the longest service life and wonderful performance.

CNBM Pipelines regard quality as the essential factor leading to successful business. Every pipe is tested in accordance with BS EN545 (water application) or BS EN598 (sewer application). CNBM Pipelines products comply with and are tested according to the relevant European and International Standards. Our pipes are manufactured under the quality management system BS EN ISO 9001. After years of efforts, CNBM Pipelines has built up great reputation in terms of quality and service among customers worldwide

Product Introduction

CNBM ductile iron pipe ranges from DN80-DN1600mm (Tyton, T-Type, Class K7/K8/K9), effective length: 6m, complying with BS EN545/EN598/ISO2531/BS4772.

Specification& Payment terms

Internal lining:      Pipes shall have an internal cement mortar lining in acc with ISO4179.

External coating:  Pipes shall be externally coated with metallic zinc spray plus a further layer of resin painting to ISO8179.

Gasket:              100% SBR/NBR/EPDM gasket in accordance with ISO4633.

Packing:             Pipes from DN100 to DN300 be bundled with steel belts, the others are in bulk.

Payment term:    By 30% T/T advance payment + 70% Irrevocable L/C at sight.
Packing:             In bulk vessel or in container.

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Q:How to correctly measure ductile iron pipe
Ductile pipe diameter is around the tube around the peripheral measurement, use tools to gauge the inner diameter of the pipe, the length of the pipe is used to measure the ruler or tape, ductile iron pipe wall thickness can be measured directly, may also be a suitable tool for indirect measurement, the general profession will experience with project measure tube the size.
Q:Does the cast iron pipe need separate corrosion protection?
No, the inner and outer corrosion protection of the tube has been done.
Q:Can the underground cast iron pipes be connected with clamps to form buttress?
The hoop has the advantages of beautiful appearance, convenient operation, strong clamping force, good sealing performance, etc.. Mainly used for connecting and fastening vehicle, ship, diesel engine, gasoline engine, machine tools, fire, and other machinery and equipment, chemical equipment general nylon hose, plastic hose, hose cloth, water interface and seal etc..
Q:What is the difference between flexible joint mechanism and seismic cast iron pipe DN100 and ductile iron pipe?
Nodular cast iron has high strength and strong plasticity. The tensile strength of ductile iron is twice that of gray iron, and the yield strength even exceeds that of cast steel.
Q:Can ductile iron pipes be made of flexible waterproof sleeves?
The casing can be divided into ordinary casing to be 2-4 cm thick than the pipe to be used and fixed to the wall or plate, and the pipe passes through it. Flexible bushing - between the casing and pipe, with flexible material to seal the sealing effect. Rigid casing - that is, between the casing and pipe with rigid material sealed to achieve sealing effect. Waterproof casing - is the use of the casing of the environment is to prevent liquid leakage or leakage into place (such as the pool, septic tanks, basement, etc.) is on the outer wall of the bushing is not less than 1 times increase waterproof wing, this wall is poured in the casing as a whole, not because of swelling shrinkage factor and crack and leakage.
Q:What does ductile iron pipe "ND200" mean?
Generally speaking, the diameter of the pipe can be divided into outer diameter, inner diameter and nominal diameter. The pipe is a seamless steel pipe pipe diameter by the letter D to represent, then additional outer diameter size and thickness, such as diameter of seamless steel pipe 108, a wall thickness of 5MM, denoted by D108*5, is also used outside said, such as De63 plastic pipe, such as reinforced concrete pipe, cast iron pipe, galvanized steel pipe, said the DN, in the design drawings is generally used to represent the nominal diameter, nominal diameter is a standard in order to design and manufacture and maintenance convenient set artificially, with nominal diameter, tube (or pipe) specification name.
Q:Method for joining cast iron pipes
Cast iron pipe, cast cast pipe. Cast iron pipes are used for water supply, drainage and gas transmission lines. They include cast iron pipes and pipe fittings. Labor intensity is small. According to the casting method, it is divided into continuous cast iron pipe and centrifugal cast iron pipe, in which the centrifugal cast iron pipe is divided into sand mould and metal type two kinds. Divided into gray cast iron pipe and nodular cast iron pipe according to different material. According to the interface form, it is divided into flexible interface, flange interface, self anchored interface, rigid interface and so on. Among them, the flexible iron pipes rubber sealing ring; flange interface cast iron pipe flange fixed in the rubber pad, the flange gasket sealing; rigid interface cast iron pipe socket is large, straight pipe is inserted, sealed with cement, this technology has been basically eliminated
Q:Does the cast iron have size 250? What's the performance?
You should be the casting grade or material, if it is ductile iron, said generally between QT400-15 or QT700-2 different indicators, said in front of the tensile strength, the elongation rate refers to the back, China is now the lowest grade of nodular cast iron material is QT400-15, such as QT250.In addition, the number 250 you refer to may also be a code name for ductile iron parts, such as 200, 300, etc., which are manufactured by the factory as required by the project.Gray iron, which has a 250 brand, is generally referred to as HT250, but it is not ductile iron.The machine on the ductile iron and gray iron are used, but generally not made of grey cast iron gear
Q:Is the cast iron pipe buried in need of antiseptic treatment? What kind of anticorrosive materials are used?
It must be antiseptic. Usually hot asphalt brush painted two times, winding glass fiber cloth two road, cross construction.
Q:Comparison of ductile iron pipe and spiral steel pipe
Spiral welded pipe: inner wall smooth, welding connection, a small amount of pressure, need additional anti-corrosion

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