Product Description
Gas Vacuum Hot Water Boiler
One machine for multiple purposes: With its ingenious and specialized design, our vacuum boiler stands out by offering dual hot water outputs. This unique feature allows it to deliver hot water at different temperature gradients simultaneously. Whether you choose a dual-circuit system or a single-circuit configuration, each can function independently, providing unparalleled versatility in operation.
High thermal efficiency: Our heat exchange process operates within a meticulously sealed vacuum chamber, where the loop ensures maximum efficiency. Crafted from the finest imported stainless steel, known for its superb heat transfer capabilities, our heat exchanger promises high efficiency and substantial energy savings, setting a new standard for performance.
Absolute safety: Operating under perpetual negative pressure, our boiler poses no explosion risk. It is fortified with cutting-edge safety components such as temperature sensors, safety valves, overheat protection, and vacuum control switches, ensuring comprehensive protection by addressing all potential safety concerns.
Intelligent control: Featuring an advanced digital control system, our boiler is equipped with a user-friendly LCD screen that displays in Chinese. Temperature settings are fully customizable, while real-time data on furnace temperature and vacuum levels are easily accessible. Seamlessly automate functions like recording combustion time and diagnosing operational issues, ensuring simplicity and enabling unattended operation.
Eliminate the trouble of registration procedures: Our boilers are delivered fully assembled and operate under a secure negative pressure environment, negating any risk of expansion or explosion. Consequently, they are exempt from stringent oversight and inspections, significantly easing the burden of registration procedures and thereby minimizing potential costs.
Energy saving: The boiler's design minimizes heat medium water volume, utilizing efficient heat exchange through negative pressure steam in the vacuum chamber. This enables rapid achievement of the desired water temperature in under ten minutes, with minimal heat loss, showcasing a remarkable energy-saving capability.
Long life: Constructed with high-grade stainless steel, the heat exchanger delivers exceptional heat transfer and resists corrosion. Flanged pipe endings afford easy maintenance and replacement. The vacuum state of the furnace body prevents corrosion and scaling, while the tube bundles remain untouched by flame or flue gases, collectively extending the equipment's lifespan.
Insulation structure: Our boiler incorporates a robust 100mm double-layer insulation structure, effectively lowering the external touch temperature to ambient levels. This innovation not only enhances safety but also significantly boosts the thermal efficiency of the entire system.
Imported low-nitrogen burner: Experience superior combustion efficiency combined with reduced noise and minimal exhaust emissions, all meeting the stringent criteria set by the foremost environmental regulations.
| Gas Vacuum Hot Water Boiler (120mg) Parameter Table |
| Modal |
Unit |
ZKW0.35-65/55-Q.Y |
ZKW0.47-65/55-Q.Y |
ZKW0.58-65/55-Q.Y |
ZKW0.7-65/55-Q.Y |
ZKW0.94-65/55-Q.Y |
ZKW1.05-65/55-Q.Y |
ZKW1.2-65/55-Q.Y |
| Rated thermal power |
KW |
350 |
480 |
580 |
700 |
940 |
1050 |
1200 |
| Rated heat output |
Kcal/h |
300,000 |
400,000 |
500,000 |
600,000 |
800,000 |
900,000 |
1,000,000 |
| Boiler design thermal efficiency |
% |
94~96 |
| Rated working pressure |
Mpa |
-0.085 |
| Heat exchanger working pressure |
Mpa |
1.25 |
| Rated heating supply t=10 |
Outlet/return water temperature |
ºC |
65/55 |
| Circulating water volume |
t/h |
30 |
40 |
50 |
60 |
80 |
90 |
100 |
| Water supply and return diameter |
DN |
65 |
80 |
80 |
100 |
125 |
125 |
125 |
| Fuel consumption |
0# Light diesel |
kg/h |
32.5 |
53.7 |
53.7 |
64.5 |
85.6 |
95.6 |
154.5 |
| Natural gas |
Nm³/h |
38.4 |
64.5 |
64.5 |
77.1 |
102.7 |
114.5 |
129.5 |
| Flue size |
mm |
φ250 |
350*220 |
350*220 |
φ320 |
φ330 |
φ350 |
φ412 |
| Shipping Weight |
KG |
2600 |
3000 |
3000 |
3300 |
4500 |
4200 |
4500 |
| Dimensions |
Length |
mm |
2620 |
3000 |
3000 |
3200 |
3640 |
3700 |
3650 |
| Width |
mm |
1350 |
1600 |
1600 |
1470 |
1770 |
1840 |
1860 |
| Height |
mm |
2040 |
2000 |
2000 |
2220 |
2250 |
2160 |
2250 |
Statistics by boiler flue in 2024
| |
Modal |
Unit |
ZKW1.4-65/55-Q.Y |
ZKW1.75-65/55-Q.Y |
ZKW2.1-65/55-Q.Y |
ZKW2.8-65/55-Q.Y |
ZKW3.5-65/55-Q.Y |
ZKW4.2-65/55-Q.Y |
ZKW4.9-65/55-Q.Y |
ZKW7.0-65/60-Q.Y |
| |
Rated thermal power |
KW |
1400 |
1750 |
2100 |
2800 |
3500 |
4200 |
4900 |
7000 |
| |
Rated heat output |
Kcal/h |
1,200,000 |
1,500,000 |
1,800,000 |
2,400,000 |
3,000,000 |
3,600,000 |
4,200,000 |
6,000,000 |
| |
Boiler design thermal efficiency |
% |
94~96 |
| |
Rated working pressure |
Mpa |
-0.085 |
| |
Heat exchanger working pressure |
Mpa |
1.25 |
| |
Rated heating supplyt=10 |
Outlet/return water temperature |
ºC |
65/55 |
| Circulating water volume |
t/h |
120 |
150 |
180 |
240 |
300 |
360 |
420 |
600 |
| Water supply and return diameter |
DN |
125 |
200 |
200 |
150 |
200 |
200 |
250 |
300 |
| |
Fuel consumption |
0# Light diesel |
kg/h |
137.6 |
166.9 |
197.7 |
316.5 |
316.5 |
392.6 |
442.3 |
627.1 |
| Natural gas |
Nm³/h |
152.9 |
200.2 |
230.3 |
305.6 |
379.7 |
471.2 |
530.7 |
752.5 |
| |
Flue size |
mm |
420*300 |
440*300 |
600*280 |
460*460 |
640*430 |
760*380 |
760*460 |
760*550 |
| |
Shipping Weight |
KG |
5150 |
5800 |
7300 |
7350 |
11100 |
11100 |
15100 |
17100 |
| |
Dimensions |
Length |
mm |
3750 |
4000 |
4600 |
5000 |
5220 |
5400 |
6050 |
6800 |
| Width |
mm |
1700 |
2000 |
2100 |
1900 |
2300 |
2300 |
2500 |
2700 |
| Height |
mm |
2380 |
2420 |
2550 |
2660 |
2900 |
2900 |
3180 |
3660 |
| Gas vacuum hot water boiler (30 mg) parameter table |
| Modal |
Unit |
ZKW0.35-65/55-Q.Y |
ZKW0.47-65/55-Q.Y |
ZKW0.58-65/55-Q.Y |
ZKW0.7-65/55-Q.Y |
ZKW0.94-65/55-Q.Y |
ZKW1.05-65/55-Q.Y |
ZKW1.2-65/55-Q.Y |
| Rated thermal power |
KW |
350 |
480 |
580 |
700 |
940 |
1050 |
1200 |
| Rated heat output |
Kcal/h |
300,000 |
400,000 |
500,000 |
600,000 |
800,000 |
900,000 |
1,000,000 |
| Boiler design thermal efficiency |
% |
94~96 |
| Heat exchanger working pressure |
Mpa |
1.25 |
| Rated working pressure |
Mpa |
-0.085 |
| Rated heating supply t=10 |
Outlet/return water temperature |
ºC |
65/55 |
| Circulating water volume |
t/h |
30 |
40 |
50 |
60 |
80 |
90 |
100 |
| Water supply and return diameter |
DN |
65 |
65 |
80 |
100 |
100 |
125 |
125 |
| Fuel consumption |
0# Light diesel |
kg/h |
30.2 |
40.2 |
49.8 |
60.5 |
80.6 |
95.6 |
127.6 |
| Natural gas |
Nm³/h |
34.5 |
48.2 |
56.5 |
68.4 |
91.2 |
114.5 |
106.3 |
| Flue size |
mm |
φ250 |
350*220 |
350*220 |
φ320 |
380*280 |
380*280 |
φ412 |
| Shipping Weight |
KG |
2030 |
3500 |
3500 |
3800 |
4000 |
4500 |
4600 |
| Dimensions |
Length |
mm |
2500 |
3100 |
3100 |
3400 |
3400 |
3700 |
3480 |
| Width |
mm |
1600 |
1800 |
1800 |
1670 |
2000 |
1670 |
1670 |
| Height |
mm |
2160 |
2200 |
2200 |
2520 |
2550 |
2450 |
2410 |
The 2024 model, based on the rear flue, is represented in green, adhering to the 120 mg emission standard without requiring additional schematics.
| Modal |
Unit |
ZKW1.4-65/55-Q.Y |
ZKW1.75-65/55-Q.Y |
ZKW2.1-65/55-Q.Y |
ZKW2.8-65/55-Q.Y |
ZKW3.5-65/55-Q.Y |
ZKW4.2-65/55-Q.Y |
ZKW5.6-65/55-Q.Y |
ZKW7.0-65/60-Q.Y |
| Rated thermal power |
KW |
1400 |
1750 |
2100 |
2800 |
3500 |
4200 |
5600 |
7000 |
| Rated heat output |
Kcal/h |
1,200,000 |
1,500,000 |
1,800,000 |
2,400,000 |
3,000,000 |
3,600,000 |
4,800,000 |
6,000,000 |
| Boiler design thermal efficiency |
% |
94~96 |
| Heat exchanger working pressure |
Mpa |
1.25 |
| Rated working pressure |
Mpa |
-0.085 |
| Rated heating supply t=10 |
Outlet/return water temperature |
ºC |
65/55 |
| Circulating water volume |
t/h |
120 |
150 |
180 |
240 |
300 |
360 |
480 |
600 |
| Water supply and return diameter |
DN |
150 |
200 |
150 |
150 |
250 |
250 |
300 |
300 |
| Fuel consumption |
0# Light diesel |
kg/h |
128.2 |
160.2 |
193.5 |
252.7 |
317.8 |
380.3 |
483.84 |
627.1 |
| Natural gas |
Nm³/h |
152.6 |
190.7 |
227.33 |
304.4 |
381.3 |
456.4 |
547.2 |
752.5 |
| Flue size |
mm |
420*300 |
580*400 |
500*330 |
460*460 |
640*430 |
686*430 |
|
760*550 |
| Shipping Weight |
KG |
6600 |
7200 |
7300 |
10040 |
11100 |
12100 |
13800 |
17100 |
| Dimensions |
Length |
mm |
3850 |
4050 |
4400 |
5000 |
5470 |
5610 |
6250 |
6800 |
| Width |
mm |
1760 |
1920 |
2100 |
2100 |
2250 |
2400 |
2650 |
2700 |
| Height |
mm |
2540 |
2660 |
2750 |
2920 |
2980 |
3060 |
2150 |
3660 |
Main Products
Company Profile
Nestled at Tieta Road in the charming Guyang Town, Dantu District, Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. stands as a beacon of industrial innovation.Jiangsu Weifu is dedicated to harmonizing and enhancing boiler marketing resources across the vast landscapes of mainland China. Through our expansive marketing network, we deliver the essence of Weifu's top-tier oil, gas, and electricity boilers—showcasing unparalleled quality, competitive pricing, and impeccable service to our valued customers. Embracing the ethos of 'integrity first,' Jiangsu Weifu Special Equipment Co., Ltd. is passionate about crafting excellence. Our mission is to spread warmth and innovation across the globe. By fostering a culture of value creation, we ensure that our customers gain tremendous benefits, our employees experience growth, shareholders enjoy returns, our company thrives, and the nation benefits from our contributions to tax revenue.
Boasting a dynamic workforce of over 200 dedicated professionals, our team includes more than 40 specialized technicians, each contributing to our legacy of excellence. Spread over a sprawling 20,000+ square meters, our state-of-the-art facilities are equipped with cutting-edge manufacturing and testing equipment. We excel in designing and producing a comprehensive array of gas, oil, and electricity-powered hot water and steam boilers, including vacuum hot water boilers and organic carrier boilers.
Driven by the philosophy 'what customers need is what we make,' we have curated a diverse portfolio of boiler products. From vertical to horizontal gas and oil steam boilers to pressurized and non-pressurized hot water boilers, electric heating steam options, and beyond—explore our seven series and nearly 300 specifications, each a testament to our commitment to innovation. At the core of our offerings is a commitment to eco-friendly excellence—our products utilize cutting-edge clean combustion technology. Our horizontal pressure boiler designs feature pioneering elements like corrugated and conical furnaces, threaded smoke pipes, and wet back three-pass structures—ensuring unmatched reliability and performance. Equipped with high-efficiency imported burners from renowned brands like Riello, Aucma, Black & Decker, and Weishaupt, our boilers exemplify superior energy efficiency, sustainability, and environmental stewardship. To optimize energy use and minimize emissions, our boilers come with either pressure or normal pressure economizers and condensers, significantly reducing exhaust temperatures and decreasing dust, nitrogen oxides, and sulfur oxides in flue gases—enhancing our commitment to energy efficiency and environmental conservation. Jiangsu Weifu Boiler proudly stands as a leading national supplier of small to medium-sized oil, gas, and electric boilers across China. Our extensive clientele spans the bustling urban hubs and serene cityscapes of mainland China. We remain steadfast in our pledge to environmental protection and energy conservation, making a meaningful impact throughout mainland China's ecological landscape.
Certifications
Proudly Holding a National Class B Manufacturing Certificate, Jiangsu Weifu Special Equipment Co., Ltd., the powerhouse behind Weifu Boiler, stands at the forefront of the dynamic boiler market. Embracing both opportunities and challenges, Weifu Boiler is steadfast in its commitment to 'creativity for development, credit for cooperation, and quality for market share'. This unwavering principle ensures we consistently deliver unparalleled products and services that exceed expectations. Join us as we unveil the unparalleled value of Weifu Boiler. Discover the exceptional benefits and unmatched quality that set Weifu apart in the industry.
Packaging & Shipping
FAQ
1. How to buy a good boiler?
A: Choose a good supplier.
B: Specification is clear, steam or hot water, capacity,fuel,pressure and so on
C:Price is not the only problem, quality and service also important.
2. What is your main product?
A:Steam boiler, hot water boiler and thermal oil boiler.Gas fired boiler, oil fired boiler, diesel fired boiler, coal fired boiler, biomass fired boiler,Industry boiler and so on.
3. Q: How long is your lead time?
A: Generally it is 30 days, depends on your needs and project scales
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