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Heat Exchanger Economizer Coil Serpentine Tube for Boiler High Efficiency

ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
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Heat Exchanger Economizer Coil Serpentine Tube for Boiler High Efficiency

Brand Name : HDT

Model Number : HDT-ST001

Certification : ASME, TUV, SGS, ABS, PED, ISO9001, Grade A

Place of Origin : China(Mainland)

MOQ : 500 tons

Price : 800 - 9000 USD / ton

Payment Terms : L/C, T/T, Western Union

Supply Ability : About 1000 ton / month

Delivery Time : 60-75days

Packaging Details : seaworthy packing for exporting

Material : Stainless steel, carbon steel, alloy steel

Certificate : ASME, TUV, SGS, CE, GRADE A, ISO9001

Color : Customized

Shape : U Bend , Straight ,Coil, Snake Tube

Application : boiler&heat exchanger, energy, petrochemical, nuclear

OD : 1.5 to 1500mm

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Heat Exchanger Economizer Coil Serpentine Tube for Boiler High Efficiency Certificated


Product Introduction


Product Name
Economizer for Boiler
Structure Type
Tube Coil Serpentine Coil
Tube Material
- Carbon Steel : 20#, 20G, A195, A-1
- Corten Class Low Alloy Steel : Corten Steel, ND Steel (09CrCuSb)
- Alloy Steel : 15CrMoG, T11
Standard
China GB, ASME
Manufacturer Grade
China A Grade, ABS Certificated, TUV Certificated
Tube Type
- Bare Tube
- Fin Tube
Tube Specification
As per Customer requirements
Tube Thickness
As per Customer requirements
Working Pressure
1.6 MPa ~ 13.2 MPa
Working Temperature
depends on material
Welding
Automatic GTAW (TIG) tube butt welding
Welding NDT
Automatic RT 100%

Hua Dong Energy Technology deals with Austenitic Stainless Steel, Nickel Alloy Steel (Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 35 years, every year sell more than 50000 tons of steel pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Russia, Korea, Singapore, Austrial, Poland, France , ....And our group branch company and factory have been already approved by :ABS, DNV, GL, BV, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2008, ISO 14001-2004.


U-Bend Tube are widely used in Heat Exchanger Systems. Heat-Exchanger Equipment on the basis of

Seamless Stainless U-Tubes and Welded Stainless U bend Tube is essential in strategically important and critical fields---Boiler, heat exchanger, Nuclear And Petrochemical Machine Building.

Hua Dong Energy Technology Started to Produce Serpentine Tube Since 1985,Up to now already supply more than

300,000 tons Steel Serpentine Tube to over 30 countries.


The U-Bend Tube Comply With The Following Standards:


1. ASTM A688/ASME SA688

2. ASTM A803/ASME SA803

3. ASTM A556/ASME SA556


Steel Grade:



FerriteAusteniteDuplexSuper DuplexNi-AlloysTitanium

TP410

TP405

S44400

S44660

TP430

TP304/304L

TP316/316L

TP316Ti

TP317/317L

TP321

TP347

S31803

S32205

S32304

S32750

S32760

N06600

N08020

N00880

N08825

N08904

Gr.2

Tube Of Other Alloys And Steel Grades Can Be Produced Upon Agreement.


Technical Requirements:


Straight Tubes Standard Specification For Bending:

ASME SA 213; ASME SB 163; ASME A789, ASME SA268, ASME SA269, etc.

Marking: Before Bending By Marking Machine All Over The Tube Length (Bent Section After Heat

Treatment Without Marking)

Note: Marking is also possible After Bending On The Straight Parts Of U-Bending Tube.


U-Bend Tubes:

-TEMA RCB 2.31 Standard Of The Tubular Exchanger Manufacturers Association (9th Edition).

-ASTM A688/ASME SA688 Standard Specification For Welded Tubes Of Austenitic Corrosion Resistant

Steel Grade Designed For Feed Water Boilers.

-ASTM B163/ASME SA163 Standard Techinical Requirements For Tubes Of Nickel And Nickel Alloy For

Condensers And Heat Exchangers.


-Customer Specifications.


Bending Radius: From 1.5*OD(Outside Diameter) To 1500mm

When Ordering Tubes With Radius less or equal to 1.5*OD, It Is Necessary To Agree Precision Of Geometrics.

Straight Tubes Maximum Length:(Before Bending): 35000 mm.

Leg Length: Min 1 Meter, Max. 16500 mm (For Max R=1500mm)

Note: Other Size Are Available Upon Agreement.

Heat Treatment: Stress Relieved After U-Bending (Bending Area Plus 300MM For Each Leg).

Hydrostatic Test After U Bending: Maximum Test Pressure 600 Bar, Soaking 10 Sec. With

Dematerialized Water. Compressed Air Cleaning After Hydro-Test.

Packaging: In Strong Transport-Worthy Pre-fumigated wooden boxes of corresponding dimensions for

each tube Length, Radius, Diameter, According To PO requirements as well as wrapped In polyethylene

films With soft plastic caps on both end of Tube.


Some of the quality tests carried out by us includes:


Corrosion TestConducted only when specially requested by the client
Chemical AnalysisTest done as per required quality standards
Destructive / Mechanical TestingTensile | Hardness | Flattening | Flare | Flange
Reverse-bend and Re. flat testsCarried out in full compliance with relevant standards & ASTM A-450 and A-530 norms, which ensures trouble-free expansion, welding & use at customers end
Eddy Current TestingDone to detect homogeneities in subsurface by using Digital Flaw-mark Testing System
Hydrostatic Testing100% Hydrostatic Testing carried out according to ASTM-A 450 norms for checking tube leakage, and biggest pressure we can support 20Mpa/7s .
Air Under Pressure TestTo check any evidence of air leakage
Visual InspectionAfter passivation, every single length of tubes & pipes is subjected to thorough visual inspection by trained staff for detecting surface flaws & other imperfections


Supplementary Testing : Apart from the above mentioned tests, we also carry out on the manufactured products supplementary testing. The tests conducted under this include:

· Eddy Current Testing

· O.P Testing

· Radiography Testing

· Corrosion Testing

· Micro Testing

· Macro Testing

· IGC Testing

· Ultrasonic testing

· Liquid Penetrate testing



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