Press the left button, drag the mouse, rotate the cube, see more information

Limit Discounts

Through this webpage, choose online customer service communication, or message board. Leave your needs and get limited time discounts, up to 10% off, saving you a fortune. This discount has an indefinite period, and places are limited on a first-come, first-served basis.

Payment Method

We support various payment methods:
T/T payment
Alipay etc
Save time in your buying process.

Certified Product

The company's products have passed multiple national
for example:
United States: ASME
Eastern Europe: EAC
Russia: GOST
Singapore: MOMO
Buy products, buy with confidence, use with confidence

Product Type

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!

Contact Us

If you are interested in our company or products, you can contact with us through online consulting, demand table submission, e-mails and telephones. Our staff shall wholeheartedly provide product information, application knowledge and good service for you.

US3301276A - Flow retarders for fire tubes of boilers

  • Offshore price : $20000-$100000 Get a quote on the right form
  • Minimum order quantity : 1 set :US3301276A - Flow retarders for fire tubes of boilers
  • Supply Capacity : 10 units/month :US3301276A - Flow retarders for fire tubes of boilers
  • Manufacturer/Brand : Fangkuai boiler
  • Port : Anyang
  • payment terms : Letter of Credit, Wire Transfer, VISA

Leave Your Message And Get Price!

I need the quotation of , the fuel is , this capacity is , use for . My Name is , my Email is , my WhatsApp is , Please Send the detail information for me!

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


Leave us a message

We will send out plans and quotations within five minutes

Name (optional)



Choose product type



Get display discount

Contact us

Global Sales Hotline:

Email: [email protected]

  • What is a Waste Heat Boiler? (with picture) - Info Bloom

    Jan 31, 2022 · A waste heat boiler of the water-tube design is able to cope with much higher pressures of steam than a fire-tube boiler, but it is more difficult to construct and install. Inside this type of boiler, there are narrower tubes than inside a fire-tube boiler, and the tubes contain water instead of hot gases.Get Price

  • Determination of Flow Characteristics in Fire-Tube Boiler

    Download Citation | On Jan 1, 2020, A. Hari Kishan and others published Determination of Flow Characteristics in Fire-Tube Boiler by Numerical Simulation | Find, …Get Price


    Model CB, CB-LE Packaged Boiler Manual vii 6.16 — Gas Pressure and Flow Information 6-16 6.16.1 — Pressure 6-16 6.16.2 — Gas Flow 6-19 6.16.3 — Pressure Correction 6-19 6.16.4 — Checking Gas Flow 6-21 6.17 — Gas Fuel Combustion Adjustment 6-21 6.17.1 — Standard Burner Low-Fire Adjustment 6-25 6.17.2 — High Turndown Burner Low Get Price

  • Fire Tube Boiler - Construction, Types and Its Working

    Fire Tube Boiler Diagram. These boilers include a water level indicator; a pressure gauge, steam stop tap security tap, & a manhole like mountings for providing security as well as simplicity of working. The Fuel burns on the grate of the firebox in the boiler and the resultant hot-flue gases are permitted to flow in the region of cross tubes.Get Price

  • Firetube vs Watertube Boilers: a Comparison

    Feb 19, 2015 · The firetube boiler passes combustion gas inside a series of tubes surrounded by water in a vessel to produce steam, while a watertube instead sends water through a series of tubes surrounded by combustion gas used to transfer heat energy and produce steam. Here are a few key differences between the two: Firetube Boilers: - compact construction.Get Price

  • Hydraulic parameters of a water flow for 25 kW fire- tubes

    Download scientific diagram | Hydraulic parameters of a water flow for 25 kW fire- tubes boiler. from publication: Tests of changes in the resistance of heating water flow in the home heating Get Price

  • retarder for fire tube boilers – CFBC Boiler Manufacturer

    Steampac Water-Tube boilers are a safe, efficient and durable water-tube followed by a final pass through multiple tubes fitted with spiral flow retarders to . In " water-tube " boilers the fire is usually placed under a collection of tubes containing …Get Price

  • The rate of flow of steam is __________ in case of fire

    The working pressure range for a La-Mont boiler is The number of fire tubes in a Cochran boiler are The amount of water evaporated from feed water at __________ into dry and saturated steam at 100° C at normal atmospheric pressure is called equivalent evaporation from and at 100° C.Get Price

  • Steam Boiler Spiral Tube Retarders from IBHS Ltd

    Steam Boiler Spiral Tube Retarders from IBHS LtdGet Price

  • Fire Tube Boiler (3 Pass) Explained - saVRee

    SD235239-01 Fire Tube Boiler. SD235239-02 Access Platform Arrangement for Fire Tube Boiler. SD235239-03 Natural Gas and Liquefied Petroleum Gas Burner and Igniter Fuel Standard Piping Diagram. SD235239-04 No. 2 Burner Fuel Oil Systems Standard Piping Diagram. SD232111-07 Boiler Feedwater Pumps Flow Diagram. SD232111-08 Boiler Flow Diagram. 5.Get Price

  • fire tube flow chart boiler | Boiler industri untuk dijual

    89,000 BTU Output Knight High Efficiency Boiler w/ 89,000 BTU Output Knight High Efficiency Boiler w/ Fire Tube Heat Exchanger (Wall Mount) A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses . Home / Coal / Update: Benchmarking Boiler Tube Failures; Update: Benchmarking Boiler Tube Failures.Get Price

  • Fire Tube Boiler - Types, Construction, Working & …

    The use of small-bore tubes fitted with retarders ensures better heat transfer and cleaner tubes as a result of the turbulent gas flow. Composite boilers A composite boiler arrangement permits steam generation either by oil firing when necessary or by using the engine exhaust gases when the ship is at sea.Get Price


    Fire tube boilers consist of a series of straight tubes that are housed inside a water-filled outer shell. The tubes are arranged so that hot combustion gases flow through the tubes. As the hot gases flow through the tubes, they heat the water surrounding the tubes. The water is confined by the outer shell of boiler. To avoid the need for a Get Price

  • 6 According to the flow of water and flue gases a Fire

    6 According to the flow of water and flue gases a Fire tube boilers b Water tube from MAT 1101 at University of Notre DameGet Price

  • What Is A Fire-tube Boiler And How Does It Work? | IQ Mech

    A fire-tube boiler is a boiler in which fire tubes are immersed in water, and the hot flue gases produced by the combustion chamber flow inside the fire tubes. The hot flue gases transfer their heat to the outside water through the conduction process. When heat transfers to the water, it converts into steam.Get Price

  • Water-tube Package and Industrial Boilers - Babcock & Wilcox

    and more. Backed by more than 5,000 units and 150 years of experience, B&W's water-tube package and industrial boilers have an established reputation for reliability and proven performance. They are engineered to meet unique capacity, space, fuel, emissions, transportation, installation and other requirements. They offer reliable power with low Get Price

  • fire-tube boilers - English definition, grammar

    The fire-tube boiler (1) is covered with thermal insulation (7) and has portions (8) which are free of thermal insulation (7). patents-wipo. Where process steam is required for heating or as a chemical component, then there is still a small niche for fire-tube boilers. WikiMatrix.Get Price

  • Description of Construction and - National Board

    The common steam locomotive boiler is a horizontal straight fire tube boiler with riveted cylindrical boiler courses, a stayed internal firebox at the rear, and a smokebox at the front. Operating pressure ranges up to 300 psi. The boiler shell is made up of cylindrical sections or courses which may be straight or tapered.Get Price

  • Basics of hot water heating boilers - Specifying Engineer

    Sep 18, 2020 · The water tubes for these smaller boilers are made of a corrosion resistant material. Fire-tube boilers have large diameter tubes located in a large drum. The fire combustion gases pass though these tubes, heating the water in the large drum. The fire tubes are typically arranged horizontally. The boilers can also be arranged in a vertical Get Price

  • Boilers : Types and Classification - Forbes Marshall

    Shell and tube boilers are also referred to as fire tube or smoke tube boilers. Fire tube boilers; contain long steel tubes through which the hot gasses from a furnace pass and around which the water to be converted to steam circulates. Fire tube boilers, typically have a lower initial cost, are more fuel efficient and easier to operate. Their Get Price

  • Module 20 Hydronic Heating Systems Flashcards - Quizlet

    Why does a copper fin-tube boiler require less surface area to transfer heat than a steel fire tube boiler Copper Tube has a higher Thermal conductivity than steel tube What happens to the water vapour in the combustion products if the flue gases are cooled below the dew pointGet Price

  • Boiler -

    Boilers fall into two categories: water-tube and fire-tube ones, according to which substance passes through the tube and which flows round the outside. They are used to provide steam for propulsion or for various ship services. See also Oil-fired boiler MISSION™ OS …Get Price

  • steel tube failures in industrial boilers oil flow

    Heat Exchanger Corrosion & Failure - Liming · Corrosion & Failure: Shell & Tube: Pressure surges can be a result of an interruption in cooling water flow, stagnant water heated with a resulting generation of steam, or a resumption of flow producing steam. refrigeration machines or other motors can cause tube failures that form as a result of fatigue …Get Price

  • Flue gas recirculation system for fire tube boilers and

    OSTI.GOV Patent: Flue gas recirculation system for fire tube boilers and burner therefor. Flue gas recirculation system for fire tube boilers and burner therefor. Full Record;Get Price

  • The fire tubes in a Locomotive boiler has

    The fire tubes in a Locomotive boiler has _____ diameter. 4.75 mm 5.47 mm 7.45 mm 47.5 mm. 3. The pressure of feed water has to be raised before its entry into the boiler.Get Price

  • Boiler Tube Failure Handbook - M&M Engineering - a

    Access the Boiler Tube Failure Handbook. How to Use the Handbook The visual appearance of a failed boiler or HRSG tube provides valuable information regarding the mechanism of failure. Determining the failure mechanism is the first step of the failure reduction/elimination process. The process includes the following steps: Determine Failure Mechanism Find Root Cause ofGet Price

  • steaming boiler design and velocity at up risers tubes

    Understanding Boiler Circulation – Cleaver-Brooks – Complete Boiler . Boiling occurs in the evaporator tubes, and generates wet steam. the flow velocity inside the evaporator tubes will not cause separation of this design, the downcomers and risers are all …Get Price

  • In Locomotive boilers, the superheater tubes are placed

    MCQs: In Locomotive boilers, the superheater tubes are placed inside the fire tubes. - (A) True - (B) FalseGet Price


    "the effects of retarders in fire tubes of steam boilers" Abstract: of a paper read by Mr. J. M. Whitham hefore the American Society of Mechanical Engineers, and forming part of Vol. XVII of the Transaction..]Get Price

  • Modeling of fire-tube boilers - ScienceDirect

    In fire-tube boilers, the flue gas passes inside boiler tubes, and heat is transferred to water on the shell side. A dynamic model has been developed for the analysis of boiler performance, and Matlab has been applied for integrating it. The mathematical model developed is based on the first principles of mass, energy and momentum conservations.Get Price

7X24 Online