welded steel pipe external coating

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Product Description:

Specifications

water pipeline inner-layer tape
1 Butyl rubber as adhesive
2. SGS test report and DVGW certificate
3. corrosion protection

   

water pipeline inner-layer tape

State-of-the-Art Pipeline Protection for All Climates & Environments

System description:

WATER PIPELINE Inner -layer tape also be called pipe wrap anti-corrosion tape, polyethylene wrap tape.

water pipeline Inner-layer tapeT100 is engineered to assure a high bond to the primed pipe surface with excellent conformability characteristics, aggressive adhesive for corrosion protection and repair of main line coatings.

Inner-layer tapeT100 series is cold applied tape coating system for corrosion protection of Oil, Gas, Petrochemical, and Waste Waterburied pipeline, pipe can be buried, also can be underground ,overhead ,onshore and offshore .

Structure of water pipeline inner wrap tape
The specification of the tape consists of two layers, adhesive layer and film backing
Adhesive: butyl rubber
Film backing: Special blend of stabilized polyethylene

Features & Benefits

  • Provides a permanent bond to the primed steel pipes surface and provides protection against chemical electrolytic corrosion for underground pipelines.

  • long term corrosion protection

  • Worldwide reference lists. Established in-ground history

  • High chemical resistance under service temperature.

  • Outstanding electric property and permanent adhesion.

  • Cold applied, No release liner. Makes installation fast and easy.

  • Complies with EN-DIN 30672 and AWWAC-214 international standards and also ASTM standards.

  • Be used for water pipeline corrosion protection

System Properties

Type

T138

T 150

T165

T180

T 250

T265

T280

Thickness

15mil

0.38mm

20mil

0.508mm

25mil

0.635mm

30mil

0.762mm

20mil

0.508mm

25mil

0.635mm

30mil

0.762mm

Backing

9mil

0.229mm

9mil

0.241mm

10mil

0.25mm

10mil

0.25mm

15mil

0.38mm

20mil

0.508mm

25mil

0635mm

Adhesive

6mil

0.152mm

11mil

0.279mm

15mil

0.381mm

20mil

0.508mm

5mil

0.127mm

5mil

0.127mm

5mil

0.127mm

When used for ductile iron pipes inner layer 980-20 or 980-25 and outer layer 955-20 or 955-25 are recommended.

Elongation

³300%

³400%

Tensile Strength

55 N/cm

70 N/cm

Color

Black

White

Peel Adhesion to Primed Pipe

33 N/cm

Dielectric Strength

30 KV

Dielectric Breakdown

26 KV/mm

Cathodic Disbandment

0.24 in radius 6.4 mm

Water Vapor Transmission Rate

< 0.1%

Volume Resistivity

2.5 x 1015 ohm.cm

Impact resistance

5.5Nm

Penetration Resistance

<15%

Performance

AWWA C-209,ASTM D 1000,EN 12068

Order information

Length

100ft(30 M),200ft(60 M),400ft(120 M),800ft(240 M)

Width

2’’(50mm),4’’(100mm),6’’(150mm),17’(450mm),32’’(800mm)

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Q:What does "buried steel pipe" 6*2SC100 mean?
The embedded steel pipe 6*2SC100 refers to a welded steel pipe with 2 pipe thicknesses of 6mm and a diameter of 100mm. SC pipe means welded steel pipe. Embedment means pre installation (burial).
Q:What's the difference between a rectangular tube and a rectangular steel tube?
The classification of rectangular tube: steel pipe seamless steel pipe and welded steel pipe (tube) hot-rolled seamless tube, seamless tube, seamless tube, welded tube extrusion. The welded square pipe is divided into two parts:(a) according to the process of arc welding - resistance welding tube, square tube (high frequency and low frequency), welding square tube, welding square tube furnace (b) according to the weld - welded square tube, spiral welded pipe.
Q:How to calculate the maximum bending stress of steel pipe? Is there a list of the maximum flexural normal stresses for steel pipes of different materials and diameters?
Wnx - net sectional modulus of steel tubes, also called net sectional resistance moment. If the section is not weakened, it can be found in the steel sheet of the steel structure design manual. If the section is weakened, it can be calculated by the formula according to the sectional dimension according to the formula of the material mechanics.
Q:Does the seamless steel pipe need rust removal?
The main use of steel wire brush and other tools to polish the surface of the steel, you can remove loose or tilted skin, rust, welding slag and so on. Manual tool derusting can reach Sa2 level, power tools derusting can reach Sa3 level, if the surface of the steel attached to the solid oxide sheet, tool rust removal effect is not ideal, can not reach the corrosion protection requirements of the anchor depth.
Q:What is the diameter of the steel tube DN20?
Pipe installation without conversion, because in the same standard in the same diameter connecting dimensions of the same nominal pressure level of the same, and the same material have the same diameter, the nominal diameter of the purpose is to facilitate connectivity
Q:Are there specifications for scaffold steel pipe with 48mm * 3.2mm?
Scaffold tubes are our name for materials used to build scaffolding, because most scaffolding uses tubular bamboo or steel tubing. Bamboo and other bamboo is for a long time in the use of the scaffolding tube, but due to lack of safety and durability, now only in rural and urban area construction is lagging behind some of the home building small building has been used. The modernization construction, the most commonly used type of scaffolding pipe is steel pipe, the scaffolding should not only meet the demand of workers, but also to meet the characteristics of scaffolding firm and durable, so tough hard steel is the best choice. The selected steel pipe generally requires smooth surface, no cracks, no bending, no rust, and meet the relevant national standards.
Q:Seamless steel tube with the tube with what is the difference?
At present there are some seamed steel pipe seamless treatment tube, it is the weld annealing treatment, eliminate the residual stress of the weld, the weld and base material, the pressure range of basic and seamless pipe is. May also consider the use of.
Q:What are the specific differences between flexible pipes and rigid pipes?
The rigid waterproof sleeve is used in the wall of the building which does not need to bear the vibration and expansion deformation of the pipe, and the wall thickness is 200mm in general;Flexible waterproof sleeve is mainly applicable to the wall of buildings with seismic requirements, pipeline vibration and expansion deformation, and strict waterproof requirements, and the wall thickness is 300mm
Q:Material of welded steel pipe
GB/T14980-1994 (large diameter welded pipe for low pressure fluid delivery). Mainly used to transport water, sewage, gas, air, heating, steam and other low-pressure fluid and other uses. Its representative material is Q235 grade a steel.GB/T12770-1991 (stainless steel welded pipe for mechanical structure). Mainly used in machinery, automobiles, bicycles, furniture, hotels and restaurants, decorations and other mechanical parts and structures. Its representative material 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb and so on.
Q:There are multiple welded galvanized steel pipe outer diameter 108mm wall thickness 4mm length of 6 meters
Formula for calculating weight of welded steel pipe:Kg/m= (outside diameter mm-, wall thickness mm) * wall thickness mm*0.02466= (108-4) *4*0.02466=10.26 kg / MBecause of galvanizing, the weight is heavier than that of ordinary welded pipe 3%~6%.Therefore, the length of 6 meters galvanized steel pipe weighs about 10.26*6*1.06=65 kilograms

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