ZG is a steam boiler manufacturer in China.

21MW hot water boiler

21MW hot water boiler image

Capacity:21MW WNS & SZS


Fuel:Natural gas, desiel oil, oil,et

Rated steam temperature: 184/194/204/214/224 ℃

Boiler feed water temperature: 20/60/105 ℃

21MW hot water boiler introduction

Our proven WNS series 21 MW hot water boiler 3-pass design has been used for decades – with overwhelming success. The WNS 21 MW hot water boiler is offered in various sizes and can also be used in a pooled-output multi-boiler system. It is ASME certified and is designed and equipped in compliance with the IBR.

SZS series 21 MW Hot water boiler is a kind of boiler adopts the structure of double longitudinal drums and D-type furnace. Water tube design, The economizer and other auxiliary heating surface are fixed in the rear. The combustor is located on the front wall. The convection tube bank and rear heating surface from the back of the furnace, and then into air through the chimney.

21MW hot water boiler parameters
Type WNS21 SZS21
Structure Fire tube Water tube
Output 21 MW hot water boiler
Outlet water Temperature 95℃/115
Rated steam pressure 0.7Mpa/1Mpa/1.25Mpa/1.6Mpa/2.45Mpa
Fuel Oil/gas fired
Feed temperature 70℃

Notice: As the company's products continue to improve parameters of the above products will be continuously updated page listed for reference only.

21MW hot water boiler advantage

Standard efficiency without flue gas heat exchanger up to 95% and up to 100% with condensing heat exchanger
Effective thermal insulating materials with a high degree of efficiency
Suitable for all burner systems
Pollutant reduced combustion thanks to the use of highly developed firing systems and careful selection of the best boiler and burner combination
Easy maintenance thanks to fully hinged boiler front door
Robust, reliable and unsurpassed in its durability
No minimum burner load level for water removal on the flue gas side
Smoke tube passes free of flow components

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