Three Pass Gas Fired Steam Boiler High Safety Direct Vent Long Service Life

Brand Name:Yuji
Certification:ISO CE
Model Number:ZSZ Gas Fired Steam Boiler
Minimum Order Quantity:1 set
Delivery Time:15days
Place of Origin:China (Mainland)
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Location: Xinxiang Henan China
Address: Jingye Park International Building, Xinxiang
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Product Discription


SZS Series Double Drum Oil and Gas Fired Steam Boiler


Gas vapour boilers with double drums of the SZS series are two drums, long -running, fast -charging water heaters. The series of boilers consists of upper and lower drums, membrane walls, convection tubes and capacitors. Fuel burns in the boiler. The flue gas is discharged into the chimney from the convection pipes and the waste heat.


Product Features

1. Miscellaneous fuels:

Furnace area is large, fuel combustion is sufficient, especially suitable for low -calorific fuels such as coke oven gas, blast furnace gas, etc. natural gas, liquefied gas, etc.


2. Overload capacity:

The heating area is large, the furnace area is large, the production is strong and has a certain overcharging capacity.


3. Reasonable structure:

The front water balance in front of the boiler is easy to repair the burner head, secure the water level and cool close to the burner, help remove the carbon storage in the burner and make the combustion more full.


4. Easy to maintain:

The explosion -proof door, fire -proof holes and inspection door are mounted on the boiler wall and the inspection hall is mounted on the front and rear of the boiler to facilitate the inspection of the boiler.


5. Reducing heat output:

A thin layer of insulation is used to reduce the heat sink of boilers and improve heat efficiency.


6. Long life and durability:

An excellent professional design, advanced production technology, strict quality control and control are the quality assurance of each boiler. The normal life of the boiler is over twenty years.



Techinical Parameters

Main Parameters of SZS Series Oil & Gas Fired Steam Boiler

ItemUnitSZS10SZS15SZS20SZS25SZS35SZS50SZS65
Steam Capacityt/h10152025355065
Working PressureMPa1.25/1.61.25/1.61.25/1.61.25/1.61.25/1.61.6/2.51.6/2.5
Steam Temperature193/204193/204193/204193/204193/204204/226204/226
Feed Water Temperature104104104104104104104
Thermal Efficiency/≥98%
Fuel/Natural Gas, Liquefied Gas, City Gas, Light Oil
Fuel ConsumptionNatural GasNM3/h733109814641829255936624769
Liquefied GasKg/h58888311731469205329373823
City GasNM3/h15732362314339455503787710222
Light OilKg/h60189811971496209329973893
Gas Inlet PressureNatural GasMbar150-200150-300150-300150-300150-300150-300150-300
City GasMbar150-200150-300150-300150-300150-300150-300150-30


Remarks: The fuel consumption in above table are counted the low calorific value of light oil as 42915 KJ/Kg(10260Kcal/Kg), the low calorific value of natural gas as 35588 KJ/NM3(8500Kcal/NM3), the low calorific value of liquefied oil as 45998 KJ/Kg(11000Kcal/Kg), the low calorific value of city gas as 16750 KJ/NM3(4000Kcal/NM3).


ItemUnitSZS10SZS15SZS20SZS25SZS35SZS50SZS65

Transport Dimension


Lmm563363656665Separated TransportSeparated TransportSeparated TransportSeparated Transport
Wmm330035853585
Hmm340034783850
Main Steam Valve Pipe DiameterDNmm1501502002002502×1502×150
Feed Water ValveDNmm50656580100125125
Drain Valve Pipe DiameterDNmm40405050505050
Chimney DiameterDNmm750100011001300150020002000

External and Interface Dimension of SZS Series Oil & Gas Fired Steam Boiler

Remarks: We will reserve rights to change the above mentioned data due to continuous policy transformation and product improvement.



China Three Pass Gas Fired Steam Boiler High Safety Direct Vent Long Service Life supplier

Three Pass Gas Fired Steam Boiler High Safety Direct Vent Long Service Life

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