Economizer Coil Serpentine Tube for Boiler High Efficiency ASME Certificated

Product Introduction

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:

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:

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

Zhangjiagang Hua Dong Energy Technology Co., Ltd. is a high-tech enterprise specialized in producing all kinds of stainless, carbon and alloy steel tubes and pipes, steel plates which are widely used in the field of boiler&heat exchanger, energy, petrochemical, mining, food, paper, gas and fluid industry. And we have passed the attestations including ASME, TUV, Grade A, ISO9001, EN12952, EN10216, SO3834.

The company is the subsidiary of Zhangjiagang Hua Dong Boiler Co., Ltd, which is the most leading boiler and boiler parts manufacturer in China with a history of 35 years and annual turnover of 110 million U.S.A. dollars. Our products have been exported to over 30 countries like United States, Australia, Vietnam, Pakistan, Albania, Cambodia, India, Indonesia, South Korea, the Philippines, Turkey, Saudi Arab, Germany, Russia, Chile, Syria, Thailand, Bangladesh, France, Algeria, Mongolia and Singapore, Cuba, Iraq, Italy, Spain, Japan, Yugoslavia, Sri Lanka, the Czech republic, kyrgyzstan, Canada, Malaysia, the United Kingdom and so on.

Location:

Our company locates in Zhangjiagang city which is a port city, and is only 120km far away from Shanghai, 60km far away from Suzhou and 60km far away from Wuxi.

The traffic is very convenient.

Staff:

About 600 employees, including 150 technicians.

Strategy:

We strive to provide the top grade quality products and best services to the customers. Keep developing the new products which are energy saving, environment protective and keep investing for the new equipments and new technologies.

Supplying ability:

10000MT per month for the tubes and pipes

5000MT per month for the steel plates

Global cooperation partners:

Covanta, Foster Wheeler, RCR Energy, ALSTOM, POSCO, Dongfang Electric, Shanghai Electric, China Huaneng, China Guodian, China Datang Corporation, Huaguang Boiler, Haerbin Boiler, Dongfang Boiler, Hangzhou Boiler, Bao Steel, Tisco, Shagang Steel......

Our products' quality is ensured by advanced, excellent facilities and manufacturing equipment. We have introduced many advanced processing and inspection equipments, including plasma cutting machine, NC drilling equipment, automatic welding system, welding equipment and real-time online imaging detection system, etc., which successfully ensure excellent quality of our products.