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WNS series automatic gas&oil-fired boiler, horizontal, three-pass, wet back shell boiler., Fuel: Diesel, Heavy Oil, Natural gas - details see: https://www.machineto.com/oil-gas-steam-boiler-manufactured-by-professional-factory-10211857

WNS series boiler are high quality,famous brand products.The capacity is from 1ton to 20ton,pressure is from 0.7mpa to 1.6mpa

The boilers have the characteristics
of reasonable structure, safely running, high efficiency, energy saving
and conveniently operation. WNS series automatic oil-fired, gas-fired boilers were adopted advanced international
three-pass and wet back structure. The boilers are matched excellent imported
brand burners and high automatic control system.

WNS series automatic Oil&Gas-fired boiler is horizontal, three-pass, wet back shell boiler. The main structure includes: Boiler shell, Bellows furnace, Returns burns room, Threaded gas pipe, etc. The shell and the furnace are made by 20g boiler special steel. Furnace & Returns burns room, Tube plate & Boiler shell and Returns burns room & Returns burns room cylinders are connected by the method of flanged edge connecting. The specification as below:

There is more heating surface to spare in order to assure of running of full load and overcharge.

The boilers are matched with imported burner of European brand. Proportional control. With procedure ignition, automatically blowing and flameout protective device. And it has many merits such as good burning effect, reliability of ignition, burning rapidly, mix evenly of air and gas and adjusting scale of fuel gas and air. The burning efficiency is over 99.5%.

The furnace shape is fit for the shape of flame, avoiding the flame washing out the heating surface area.

Flue gas consistence is low with less pollution.

Heating efficiency is high.

The furnace adopts wet back structure, with the merits of good diathermanous effect and less heat lost. The temperature of rear flue chamber is low so that the operators feel comfortable and safe.

Boiler adopts light quality thermal insulation material: Aluminum Silicate Fibre, with the merits of light quality, good heat preservation, less heat lost, high heating efficiency, etc.

The automatic control degree of boiler is high, adopting programmable computer control. The control box adopts full automatic operating to actualize Auto-igniting and Auto-boiler outage. And it also has manual switch.

The boiler-burning device adopts Auto scale adjusting method. Outlet water temperature is automatic adjusted.

The automatic control protection procedure has full functions, such as automatically blowing, fuel gas leak alarm, safe operating chain protecting, flameout protecting, fuel gas pressure protecting, etc.

Inspecting and adjusting function is full, such as automatically blowing, fuel gas leak alarm, safe operating chain protecting, flameout protecting, fuel gas pressure protecting, boiler over pressure voice-and-light alarm and boiler feed water over temperature voice-and-light alarm, etc.

Boiler also has the burner motor over load protecting device and Auto- engine off protecting device. The boiler equips the Max pressure limit device, fuel gas Min pressure limit device and Max temperature limit device.

Boiler set the explosion-proof gate to keep safe.

Boiler control system, alarm system and safe protecting system are relative independent setting and configuring. The pressure changes delivering and the temperature changes delivering can make the burner automatic off when temperature or pressure is over load.

Boiler is packaged leaving the plant, installed and adjusted in locale with comfortable operating.