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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

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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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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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  • Airlock in Pipes? Here's How to Clear It | Boiler Guide

    Nov 01, 2017 · How to deal with an air-lock in your pipes. If you turn on your tap but no water comes out, there may be an airlock in your pipes. You can make a claim on your …. Hydronics, A Homeowner's Guide to Heating And Cooling With Water The next generation of hydronics used a lower temperature boiler. These units produced hot water and not steam.Get Price

  • Hot water air lock? - MyBuilder

    A cold or hot water airlock can be cause by the tank running dry or air bubbles with the hot water system from a heating system where the pipe work runs up and then back down causing the air to trap and not vent out as to what should be happening. Get A Quote China Steam Boiler, Steam Boiler Manufacturers, SuppliersGet Price

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    Gas boilers are designed to create a comfortable living environment. Double-circuit units provide the living space with heat and hot water at the tap. But it happens that a working boiler does not heat water well and does not provide the necessary comfort. The degree of efficiency of the entire heating system depends on how the boiler works.Get Price

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    How to clear an airlock in your central heating system Get Price

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    What causes an airlock in the hot water system A cold or hot water airlock can be cause by the tank running dry or air bubbles with the hot water system from a heating system where the pipe work runs up and then back down causing the air to …Get Price

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    If the boiler is only used for producing hot water, the boiler temperature may be adjusted between 60 °C and 90 °C. If the boiler is used for hot water and heating, the boiler's control thermostat will generally be set to 80 °C for optimum operating conditions. 2 - General switch This switch is used for starting and shutting down the boiler.Get Price

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    Our oil/gas fired boilers can be divided into SZS 100ton water gas boiler in singapore and WNS 100ton water gas boiler in singapore depending on the medium inside the tubes. With multiple pressure … Read More; hot water boiler price singapore – Water Tube Boiler. 40 mw hot water boiler for Singapore – zg boiler efficiency.Get Price

  • Boiler isn't working: 10 common boiler problems - DIY Plumbing

    Jul 09, 2019 · A blockage in the pipe will typically trigger a fault code and stop the boiler from working. A frozen condensate pipe is one of the most common boiler problems and reasons for a boiler breakdown during a cold winter snap. Warm water and/or a hot water bottle applied to the suspected location of the blockage should quickly resolve this issue.Get Price

  • Air lock on system? - MyBuilder

    10317. Your air- lock seems to be in the boiler itself, the best way to remove this is to start and stop your boiler (heating side) and you should hear water gurgling through the system from the movement being forced through the central heating pump, and eventually it will get rid of the air-lock. Alternatively the feed to your heating system Get Price

  • How to clear an airlock in your central heating system

    This is what is known as an airlock and it can cause all sorts of problems with your central heating. An airlock that occurs in your hot water system could prevent water from coming out of a tap, while an airlock in your central heating system could cause one or more radiators to stay cold, even when the boiler is on.Get Price

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    Dec 13, 2010 · Sealed system. Biasi boiler 32kw. I've a blockage in a central heating pipe. I've isolated where the block is, but it's under laminate flooring and floorboards. Water is flowing into the radiators at the thermostat valve (I'm assuming this is the inlet) and the lockshield valve is clear but the blockage is somewhere further down the pipe.Get Price

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    The J25-32 is the boiler which made Johnson and Starley the market leaders in warm air heating systems back in the 1960s and 1970s. It was so successful and long-lived that my guess is that 50% of all warm air boilers in use today are this model. The J25-32 is a tall, thin boiler which draws air in from the hallway of a house or flat, warms it Get Price

  • Can you get an airlock in a combi boiler?

    The main cause of an air lock in pipes is when pockets of air are trapped by the flowing water, preventing the free flow of water. Also, cold water pipes have less pressure compared to the hot water pipes; as a result, it's mainly hot water pipes that are affected by air locks.Get Price

  • Hot water circulating system - Toyotomi Co., Ltd.

    A hot water circulating system capable of constantly ensuring smooth and effective supply of water from an open tank to a water boiler without causing an air lock phenomenon irrespective of a variation in operating conditions of the system.Get Price

  • Combi systemairlock driving me mad! | Screwfix

    Apr 17, 2006 · rocketron New Member. Open the mains water inlet valve to push the pressure in the heating up to just over 3 bar, then push in the boiler reset button. Now turn on the heating, you may have an air lock inside the boiler that the pump cannot push out. the 3 bar will help, reduce pressure back to normal if this works. Let us know if it works.Get Price

  • what causes air lock in hot water boiler radiator system

    Airlock in Pipes? Here's How to Clear It | Boiler GuideGet Price

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    The Importance of Boiler Water Treatment. Boiler water treatment can prevent many issues with the system, ranging from minor to severe. The initial treatment of the water is important, in addition to filtering, monitoring water quality and adding chemicals as …Get Price

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    To determine the choice of heating equipment, it is necessary to clearly understand how this or that boiler works. In the units of the Galan company, the heating agent is heated by passing an electric current through the heating elements. In heating equipment of a different type, the heating agent is heated by heating the heating element itself.Get Price

  • Top 10 Boiler Problems - Boulden Brothers

    Oct 21, 2015 · No Heat or Hot Water; Causes: Usually a major system issue such as an arrested airlock, damaged diaphragm, or messed-up motor valve. Smaller issues such as a damaged thermostat or low water pressure can also be an issue. Fixes: Call a licensed technician to inspect and repair the boiler. Boulden Brothers would be glad to help get your heating Get Price

  • 5 Effective Ways to Fix an Air Lock in Pipes | Plumbers

    In a mixed faucet, the cold water works fine, but the hot water won't flow Air lock problems typically occur in hot water lines, as well as in heating systems that rely on hot water, such as boiler and radiator heating units. 5 Ways to Break Apart an Air Lock in Plumbing Fortunately, air lock issues can often be solved at home with a DIY fix.Get Price

  • Central Heating Problems? Questions about Central Heating

    If the pump is located between boiler and tank on the feed line the direction of flow should be toward the tank. Typically hot water is drawn from the top of the boiler and fed to the tank and cold water from the tank is returned to the boiler at the bottom end. The direction of pump flow will depend on which side it is located.Get Price

  • what causes airlock in hot water boiler Agents

    Oct 25, 2017 · How to remove an air lock in a radiator or central heating system. Last time, we tried to bleed the air from the radiator, if this didn't solve the issue … an air lock in the system, preventing the flow of hot water from your gas boiler to …. once we're complete you could cause damage to your central heating pump.Get Price

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    Air-bound heating baseboard or radiator repairs: Here we explain how to remove un-wanted, air from noisy or air-bound hot water heating system pipes, radiators, convectors, and baseboards using the automatic water feed valveOn a heating boiler.. If a hot water heating system develops too much air in the piping you may hear bubbling or gurgling in the heating pipes when the …Get Price

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