A waterwall in a boiler is an furnace wall that is comprised
of refractory and tubes in a water-tube boiler.The tubes are evenly
spaced and generally connect to headers which in turn are connected
back to the main generating bank of the boiler.They serve a two
fold purpose here in that capture heat that would otherwise escape
to the atmosphere and help heat the water in the boiler.And they
also help keep the refractory cool(relatively speaking)This
prevents spalling of the refractory.
Advantages
1). To guarantee the leakproofness of furnace wall and reduce the
air leak of combustion chamber.2). To achieve the full water cooling of combustion chamber, and
the boiler accessories membrane water wall is benefit to prevent
coking under the condition of supplemental firing.3). The thermal storage capacity is small, the warming of
combustion chamber is fast and the cooling is also fast, which
could shorten the cooling time of boiler's start and furnace shut
down.4). It is good to adopt top supported water cooled wall and it
could reduce the load of boiler framework, which is benefit to
overhang.5) Compared with the bare tubes, the membrane water wall improves
the heat absorption capacity of tubes.6) The factory direct boiler membrane water wall could improve the
Preliminary combination degree of boiler parts and reduce the
installation workload.| Name | Membrane water panel |
| Material | Carbon steel,Alloy,Stainless steel |
| Tube size | Φ38 - 76 mm, Customized |
| Standard | ISO , ASME |
| Application | Installable around the boiler combustion chamber |

·For special cargos, such as overlength, overwidth, overheight and
overweight cargos, we will choose frame boxes for easy handling.
·For regular goods, we prefer ordinary containers.
·After loading the goods, we will reinforce them in all aspects.
Zhangjiagang Hua Dong Boiler Co., Ltd.,
founded in 1985, is an enterprise specializing in manufacturing
power station boilers, industrial boilers, HRSGs, waste
incineration boilers, biomass boilers and related heating surface
components in China. Hua Dong Boiler provides clients with
integrated services from design, manufacturing to installation and maintenance.
38 years experience in industry research, development and
manufacturing with sufficient production capacity.

Quality Control
1. Impact test and Strength calculation report with applied
materials information.
2. 100%NDT(non-destructive inspection) report of steel plate, tube
and electrode
3. X-ray, γ-ray and liquid penetrant test inspection report
(welding seam): to ensure the quality of the entire boiler
4. Hydraulic test report: ensure the standard working pressure and
safety.
Complete quality assurance and control system which certified
according to the International Quality Standard.
Establish a quality assurance system faithfully in compliance with
the national regulations, standards and other technical
requirements. The quality of process and products is 100% under
control. Ensured all the products are manufactured faithfully in
accordance with the contract requirements, national regulations and
standards by stringent inspection and test over materials and
products during manufacturing.

Q1: How long is the warranty period?
We provide 18 months warranty for all spare parts(exclude fragile
parts).
Q2: How can we guarantee quality?
1) All machines are in strict accordance with the ISO quality and
CE system requirements.
2) Each procedure is crafted by professional Skilled labour,
followed by particular QC
3) All information of our products can be checked in efficient
management system.
Q3: What can you buy from us?
CFB Boiler, HRSG Boiler, Boiler Economizer, Boiler Fin tube, Boiler
Air preheater, Boiler superheater, Boiler membrane wall,
Boiler manifold headers and other pressure spare parts.
Q4: What kind of service do you provide?
Before sales:
Provide productinformations, market research forecasting, product
customization,product processing,consultation and other services
for your convenience.
After sales:
1. Technical training on according to customer requirements;
2. We promise replacement under warranty;
3. We promise to supply the maintenance spare parts;
4. Regular call back or visit customers;
5. On time response to mail and phone calls of your complaints or
consultation.
Accepted Delivery Terms: FOB, CFR, CIF, EXW, FCA;
Accepted Payment Currency: USD, CNY;
Accepted Payment Type: T/T, L/C, MoneyGram, Western Union, Cash;
Language Spoken:English,Chinese
Q5: Are you a factory or trading company, where are you located?
We are a factory, just 130km(2 hours by car) away from Shanghai
Airport.
We offer pickup service at Shanghai for your visit.
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