gas central heating boilers

gas central heating boilers product description WNS series which are boiler of horizontal three pass fire tube with internal combustion. New design with structure of circular furnace wet back and larger volume burning room which can enhance burning efficiency and reduce the emission of Nox. Gas with high temperature is scouring the fire tube the second and third pass in turn. Then the gas is blown into atmosphere through chimney from the back smoke chamber. It used specifically thermal insulation material to lessen the heat loss. It is easy for maintenance due to install the hole for people and hand inside to clean. General features of WNS series gas hot water boiler: 1.    horizontal , gas & oil fired , water tube, industrial and low pressure; 2.    wetback and three-backhaulstructure design; 3.    With high efficiency economizer, the thermal efficiency can reach more than 90%. 4.    The spring-loaded type explosion door ensures the boiler safety 5.    The removable smoke boxfacilitates the maintenance 6.    Internal micro positive pressure combustionreduces the low temperature corrosion. 7.    Equipped with protection devicesfor overheating, overpressure, lacking water, leak detection, flameout, etc. This ensures the boiler to operate safely and efficiently. Technical parameters of WNS series gas hot water boiler  

Projects		Unit	WNS0.7	WNS1.4	WNS2.8	WNS4.2	WNS7.0	WNS10.5	WNS14
Rated thermal power		MW	0.7	1.4	2.8	4.2	7.0	10.5	14
rated outlet water pressure		Mpa	0.7	0.7	1	1	1	1.25	1.25
rated inlet water temperature		°c	70	70	70	70	70	70	70
rated outlet water temperature		°c	95	95	95	95	95	95	95
quantity of circulating water		t/h	24	48	96	144	240	200	266
body heating surface		m²	23.6	50	101.6	146	215	333	415
design thermal efficiency		%	91.7	91.8	91.9	91.9	91.9	92.3	92.2
net weight of boiler		t	5.1	8.2	13.1	18.5	25	36.8	45.1
Full water volume of boiler		t	2.9	5	8.8	11.3	19.1	24.3	30.9
Total boiler weight with full water		t	8	13.2	21.9	29.8	44.1	61.1	76
fuel consumption	natural gas	Nm/h	72.5	145	289	429.5	712	1054.5	1398.6
	diesel	kg/h	62	124	247	371	611	893	1188.6

  Accessories of WNS series gas hot water boiler
  production courses Workshop We have totally five workshops which covers an area of nearly 3600 square meters and employ 600 person including more than 100 engineers and technicians. Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Besides, we have received ISO9001 certification. Certificates We have the ISO9001 certificate and the National Grade-A boiler certificate, also with the Green product certificate and many Patent for invention certificates, etc. Customers Our products have been exported to many countries all over the world, including Russia, Southeast Asia,  South America, North America, Africa, Mid-East, Romania, Mengolia, Vietnam, Indonesia, etc. The quality of products and our after-sale services have won us good reputation in the oversea market. So we warmly welcome cusotmers to pay a visit to our factory so that they will have a better idea about us and our products.   trade process   Contact