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Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

About Us

FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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  • Offshore price : $20000-$100000 Get a quote on the right form
  • Manufacturer/Brand : Fangkuai boiler
  • Port : Anyang
  • payment terms : Letter of Credit, Wire Transfer, VISA

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Popular products


θrion Gas Fired Steam Boiler


Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.


Gas(oil) Fired Integrated Hot Water Boiler


Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.


H6 Gas Fired Hot Water Boiler


Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.


T7 Vacuum Hot Water Boilerr


Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.


V6 Gas Fired Hot Water Boiler


Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.


Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy


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  • Boiler – Fundamentals and Best Practices

    WATER WALLS SUPERHEATER SCREEN TUBES STEAM DRUM MUD DRUM ECONOMISER AIR HEATER RISERS DOWNCOMERS Fire Tube Boilers. Fire Tube Boilers. Waste Heat Boilers Various types and designs boiler water Intermittent blowdown to remove suspended solids in boiler water Blowdown - Removes boiler water withGet Price

  • Welding Seamless Tube Water Walls In Boiler High

    Membrane water cooling wall refers to the water cooling wall composed of air-tight pipe screen welded by flat steel and pipe.The membrane water cooling wall can guarantee the good tightness of the furnace chamber, significantly reduce the air leakage coefficient of the furnace chamber for the negative pressure boiler, and improve the combustion condition in the furnace.It can …Get Price

  • Chapter 14 Boilers - Pearson

    the herein described method of forming deep flanged headers comprising trimming the corners of the header plate to approximately circular iorm, bending the side edges of the plate to a largeGet Price

  • Maintaining boiler safety - Plant Engineering

    Never blow down a furnace wall header while the boiler is operating. The boiler waterside should be inspected on a regular basis. If there are any signs of scaling or buildup of solids on the tubes, water treatment adjustments should be made. The boiler might require either a mechanical or chemical cleaning.Get Price


    Lay out all Fire Protection equipment (Water/CO 2 fire extinguishers + Fire Blanket – BS5041 part 1) (to be completed as required for each phase) g. All services to the boiler room to be phased isolated and physically disconnected including the gas, water, electrics and data h. Drain down and vent the system i.Get Price

  • Unit 12 - Chapter 55 - Basic Boiler Construction

    Three types of furnace water-walls are the tangent tube, welded fin, and a) flat stub b) corrugated c) refractory backed d) flat stud e) metal lath. D. In early boilers furnace walls were constructed of brick. Today this method has been replaced by the use of a) baffles b) steel casing Get Price

  • Water Quality for Industrial Purposes (CHD 13)—Chemical

    Sep 06, 2013 · Quality tolerances for water for vitreous enamel industry. IS 10391 (pdf) 1982. Code of Practice for Chemical Cleaning of Boilers. IS 10392 (pdf) IS 10392 (html) 1982. feed water and boiler water for low and medium pressure boilers. IS 10496 (pdf)Get Price

  • Method of removing boiler tubes - Craig, Merrill C.

    Mar 21, 2005 · The invention claimed is: 1. A method of removing a boiler tube that extends through and is retained in an opening in a boiler vessel, the method comprising the steps of: severing the boiler tube near an exterior periphery of the boiler vessel; centering a rotary cutting tool with respect to a longitudinal axis of the severed boiler tube, the cutting tool having a …Get Price

  • US1468692A - Method of making boiler headers - Google …

    A method of fabricating boiler water walls, comprising the steps of: (a) forming a single tube subpanel by laser arc welding first and second fins to opposite sides of a single tube; (b) forming a predetermined plurality of three-tube subpanels in a two-dimensional plane by laser arc welding the fin of a first three-tube subpanel to a first side of a tube and laser arc welding the fin of a …Get Price

  • High Strength Boiler Membrane Water Wall Tube in ASME/GB

    Boiler water walls are membrane walls that are made of tubes welded together with or without a strip of metal in between. These walls form the enclosure of the coal combustion chamber. Water wall tubes are also referred to as the evaporator section; they contain water mostly in liquid form which gradually evaporates as it rises in the boiler.Get Price

  • EP2080951A1 - Boiler water wall panel - Google Patents

    A method of fabricating boiler water walls that includes the steps of forming a subpanel formed of at least one fin and one tube by laser arc welding the at least one fin to the one tube and thenGet Price

  • Grades and Materials for Boiler and Pressure Vessel Steel

    ASTM A335: Nominal wall and minimum wall seamless ferritic alloy-steel pipe intended for high-temperature service. DIN 17175: Seamless steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices.Get Price

  • Boiler Feed Water Degasification Using Membrane …

    purity water within the process facility. Purified water produced within a plant can be used for a wide range of applications. Use of the water in a boiler is one such application. In a typical boiler application, water is supplied to a steel vessel in which a heat source is applied. The water is heated to its boiling point producing steam.Get Price

  • Wall Soot Blowers or Water Cannon for Furnaces during

    May 09, 2010 · Depending upon the property of the ash (inorganics), designers adopt different methods for cleaning the deposits on the furnace walls. There are many types of deposit-cleaning devices used for boiler furnaces firing coal. Steam wall blowers, water lancers, and water cannons, also called HydroJet, are used to remove furnace deposit or slag.Get Price

  • Unit 12 - Chapter 55 - Basic Boiler Construction

    Three types of furnace water-walls are the tangent tube, welded fin, and a) flat stub b) corrugated c) refractory backed d) flat stud e) metal lath. D. In early boilers furnace walls were constructed of brick. Today this method has been replaced by the use of a) baffles b) steel casing Get Price

  • Notes and methods of descaling boilers – KS Technology

    Dec 15, 2021 · Chemical descaling of boilers is simple, you can put a descaling solution or descaler containing a corrosion inhibitor into the heat exchanger and soak it for a certain time according to the instructions. Then rinse with water two to three times 2mm residue is still better. It is estimated that it can be resolved by soaking for 12 – 24 hours.Get Price

  • US20150316509A1 - Method for measuring thickness of boiler

    An inspection hole is formed on a side surface of a boiler water tube in a longitudinal direction, a base side of a guide pipe is connected to the inspection hole, and usually, a closing member is attached to the guide pipe. In a case where the thickness of the boiler water tube is measured, the closing member is released from the guide pipe, an ultrasonic probe is inserted into the boiler Get Price

  • <Suggested specification for QuickDraw® boiler water

    A. Water heater will be a, storage-type design indirectly heated by boiler water through a copper u-tube bundle. B. The storage section of the water heater shall be ASME HLW stamped and National Board Registered for a maximum allowable working pressure of 150psi and pressure tested at 1-1/2 times working pressure. C.Get Price

  • boiler water wall cleaning - Boiler and Pressure Vessel

    Feb 08, 2011 · boiler water wall cleaning boiler water wall cleaning treatwater (Chemical) (OP) 7 Feb 11 13:32. How can we clean the outside of the water wall tubes? Can anybody list methods for this cleaning? RE: boiler water wall cleaning metengr (Materials) 7 Feb 11 14:02. What about power washing or grit blasting when the boiler is off-line.Get Price

  • Basic Boiler Construction - rananaseemshahid

    1. Describe the design and manufacturing of boiler tube sheets, shells, and drums. 2. List and briefly describe the standard types of welded joints used in the construction of pressure vessels. 3. Describe the general design of riveted joints. 4. Describe the tools and standard methods used to attach boiler tubes to tubesheets, headers and Get Price

  • Boiler Preservation Methods Dry and Wet - Boilersinfo

    Jul 19, 2018 · Total Boiler pressure parts economiser, steam drum, water walls, super heater tube are filled with feed water having high concentration of Hydrazine (200 PPM).Such high concentration of hydrazine ensures, there is no dissolved oxygen available in feed water. Boiler is kept under pressure, so that atmospheric air can't enter in to Boiler pressure parts.Get Price

  • Chapter 14 Boilers - Pearson

    Boilers 291 Coagulation—a method for concentrating and removing suspended solids in boiler feedwater by adding chemicals to the water, which causes the impurities to cling together, p. 301. Condensate—condensed steam, which often is recycled back to the boiler, p. 294. Damper—a movable plate that regulates the flow of air or flue gases in boilers,Get Price

  • boiler water wall tube leakage - Boiler and Pressure

    Jan 12, 2004 · We have two 390 t/hr CFBC boilers supplying steam at 130 ksc and 540 deg C.The boiler has four FBHE's.In one unit we are facing repeated problem of water wall tube leakage in FBHE 2(super heater 2B).Tube leakage occured four times around spiess valve area,two times in straight tube.Boroscopic inspection for checking tube choking did not reveal any result earlier.Get Price


    Boiler – Fundamentals and Best PracticesGet Price

  • Failure investigation on rear water wall tube of boiler

    J. Ahmad et. al. [26] also discussed the failure investigation of rear water wall tube of boiler using method for calculating the hoop stress. It must be considered that a failure of tube is Get Price

  • Membrane water wall ASTM materials SMAW - Dehai Boiler

    Our Service of this membrane water wall ASTM materials SMAW ASME standard factory 600mw coal-fired for power plant. 1. The design and fabrication are in compliance with the latest related standards and strictly carried out according to ISO 9001 system, so that it can satisfy client's requirement of product traceability.Get Price

  • High-pressure Boiler Seamless Steel Pipe - Permanent Steel

    Mar 09, 2020 · The manufacturing method is the same as the seamless pipe, but there are strict requirements on the steel type used for manufacturing the steel pipe. High-pressure boiler seamless steel tubes are often under high temperature and pressure when used. The tubes will be oxidized and corroded under the action of high temperature flue gas and water Get Price

  • (PDF) Industrial Boiler Operation - ResearchGate

    Industrial boilers are the heart of the industry to perform the production process. However, the most common type of failure is boiler tube corrosion due to improper treatment of feed water.Get Price

  • Industrial Boiler Parts | Huadong Boiler

    Industrial Boiler Components Manufacturing. Our fin tube is an ideal method for increasing the heating surface of boilers, and improving boiler heat transfer efficiency. Water Wall Panels Water wall panels are used in modern industrial boilers to replace steam generating tubes. They are designed to absorb high temperature radiant heat Get Price

  • Water Handbook - Boiler System Failures | SUEZ

    The boiler water often contains elements that become corrosive when concentrated far beyond normal values as a result of design problems. Many industrial boilers, for example, are treated in such a manner that low concentrations of caustic soda are present in the boiler water. The caustic can become corrosive to steel when the boiler water is Get Price

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