6 ton Brand new oil fired boiler manufacturers condensing boiler steam boiler with low price

6 ton Brand new oil fired boiler manufacturers condensing boiler steam boiler with low price r   Dear Customer:   We have a Trade Assurance Amount US $60,000 granted by Alibaba.com. It  means you will receive 100% refund of the Trade Assurance Amount for orders  not meeting agreed delivery or quality terms. The WNS series full-automatic oil (gas) fired steam boilers are designed to adopt a structure of three returns, whole wet back and also waveform furnace. The most important feature of this boiler: all the pressure elements and the center of boiler are symmetrical, combining with full wet back structure, which provides sufficient radiation heating surface. Another one is the use of light fire-resistant insulation materials in the front smoke box. This design primarily takes the principle of stability and maintenance of the boiler into consideration. prodution photo:     Features   1, Waveform furnace   The WNS series full-automatic oil (gas) fired steam boilers adopt a waveform furnace, either to strengthen the flue gas disturbance or to increase radioactive heat transfer area, not only increasing the strength of the furnace, but also effectively reduced the swelling stress furnace, not only to enhance the heat transfer effect, and promote the combustion of fuel in the furnace.   2, Condenser (or economizer) installed at the end of fire tube   A condenser (or economizer) is used at the end of fire tube. It makes use of flue gas sensible heat and latent heat via condenser (or economizer) absorbs smoke, which helps increase the water temperature of the boiler, and also reduce the exhaust gas temperature. The thermal efficiency of the boiler can be improved more than 98% (Note: inlet and outlet valves must be open during the using the boiler)   3, Burner We adopt BALTUR brand low NOX burners which are imported Italy originally. This kind of burner has three core technologies such as flue gas recirculation, flame central disperse, air supply classification, thus effectively control the generation of N0x and its emission in full compliance with European emission standards CLASSIII (80mg / KWH).   4, Controller Controller adopts German brand Siemens PLS + 10-inch color touch screen, with some features such as high reliability, high degree of automation, easy to use, easy to operate, abundant functions, flexible control, attractive appearance, ultra-high resolution large screen display, showing modern users’ science demand perfectly!   Controller Features:   u  Control function: Frequency conversion water level control and pressure proportional load regulation.   u  Protection function: Water shortage protection, ultrahigh water level protection, overpressure protection, and water pump overload protection.   u  Display function: Combustion status display, start and stop of water pump display, water level changes display, gas flow display, steam flow and pressure display.   u  Communication function: The controller has S485 communication interface and communication protocols by itself and it can realize remote monitoring.     the factory   certificate   contact us skype: charliesun327 whatsapp:00+86+18630107521 cell:86+18630107521 email:charlie @ bangziboiler.com