Product Description
Gas Vacuum Hot Water Boiler
One machine for multiple purposes: Thanks to its innovative design and unique structure, the vacuum boiler offers dual hot water outputs, allowing for simultaneous delivery of water at different temperatures. This is achieved through its versatile dual-circuit system, which can also function independently as a single-circuit system, catering to diverse needs seamlessly.
High thermal efficiency: Experience unmatched thermal efficiency with our heat exchanger, which operates in a fully enclosed vacuum chamber. Crafted from premium imported stainless steel, it ensures superb heat transfer and exceptional energy savings, making it a hallmark of sustainable technology.
Absolute safety: Our boiler continuously operates under a negative pressure state, virtually eliminating explosion risks. Outfitted with advanced safety measures like temperature sensors, safety valves, overheat protection, and vacuum control switches, it comprehensively addresses and mitigates potential safety concerns.
Intelligent control: Step into the future with our digital control system, featuring an intuitive LCD screen with a Chinese display. Set temperatures freely, monitor parameters such as furnace temperature and vacuum degree in real-time, and benefit from automatic recording of combustion times and operational anomalies. Enjoy effortless operation with our user-friendly interface that supports unattended functionality.
Eliminate the trouble of registration procedures: Designed for convenience, our boiler requires no supervisory inspection due to its negative pressure operation and explosion-proof design. Save on costs and time by bypassing cumbersome registration procedures during installation, streamlining your processes effortlessly.
Energy saving: Boasting a minimal amount of heat medium water, our boiler excels in delivering efficient heat exchange within its vacuum chamber. Achieving the desired water temperature within minutes, this system eradicates preheating losses, significantly boosting energy savings and operational efficiency.
Long life: Constructed with the finest stainless steel for optimal heat transfer and corrosion resistance, our heat exchanger promises rapid heat conduction and longevity. With flanged connections for easy maintenance and a vacuum-sealed furnace body that prevents corrosion and scaling, the system's lifespan is notably extended, ensuring dependable performance.
Insulation structure: Our state-of-the-art 100mm double-layer insulation structure minimizes external touch temperature to ambient levels, enhancing both safety and thermal efficiency. This thoughtful design innovation maximizes performance while ensuring user peace of mind.
Imported low-nitrogen burner: Embrace eco-friendly operations with our high-efficiency, low-nitrogen burner. It ensures low noise and minimal exhaust emissions, meeting the stringent requirements of first-class areas across the country, paving the way for a cleaner tomorrow.
| 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 version is tailored to comply with rear flue standards, with the green designation indicating no drawings required when adhering to the 120 mg specifications.
| 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 in the thriving locale of Tieta Road, Guyang Town, Dantu District, Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. stands as a beacon of innovation and excellence.With an unwavering commitment to excellence, our company harmonizes boiler marketing resources across the vast expanse of mainland China. Through an extensive marketing network, we ensure that the superior concept, unparalleled quality, competitive pricing, and top-notch service of Weifu's (oil, gas, electricity) boilers reach every corner of our customer base. Guided by the noble principle of 'being a real person and doing things honestly', we at Weifu Special Equipment Co., Ltd. are dedicated to crafting exceptional products that bring warmth to the world. Our ethos is reflected in our market operations where value is delivered to customers, growth is fostered in employees, benefits are realized by shareholders, development is achieved by the company, and tax revenue is contributed to national prosperity.
Our dynamic workforce exceeds 200 dedicated employees, including a talented team of over 40 specialized technicians, each bringing a wealth of expertise to our mission. Spanning over 20,000 square meters, our modern factory is a testament to innovation, equipped with cutting-edge manufacturing and testing equipment. We specialize in the design and creation of an array of high-performance boilers, including gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers, embodying our commitment to excellence.
Fueled by the philosophy 'what customers need is what we make', our company has meticulously developed a comprehensive range of boiler products. This includes vertical/horizontal gas (oil) steam boilers, vertical and horizontal gas (oil) normal pressure/pressure hot water boilers, electric heating steam boilers, electric heating normal pressure hot water boilers, and gas (oil) thermal oil boiler series, spanning 7 series and nearly 300 diverse specifications. Our products are engineered with cutting-edge clean combustion technology, paving the way for a sustainable future. The sophisticated design of our horizontal pressure boiler bodies incorporates advanced features such as corrugated furnaces, conical furnaces, threaded smoke pipes, and wet back three-pass configurations, setting a new standard in performance and reliability. Our boilers are equipped with world-class burners from renowned brands like Riello, Aucma, Black & Decker, and Weishaupt, ensuring high efficiency, exceptional energy savings, and eco-friendly operations. Enhanced with pressure or normal pressure economizers and condensers, our boilers achieve remarkable reductions in exhaust temperature and emissions. This innovation minimizes dust, nitrogen oxides, and sulfur oxides in the flue gas, making our boilers not only more energy-efficient but also significantly more environmentally friendly. Weifu Boiler proudly stands as a national leader, providing small and medium-sized oil (gas, electric) boilers across China, setting benchmarks in quality and performance. Our esteemed clientele is spread across the vibrant landscapes of large and medium-sized cities throughout mainland China, a testament to our widespread influence and trusted reputation. Through our relentless dedication to environmental protection and energy conservation, we have made significant contributions to a greener and more sustainable future in mainland China.
Certifications
Jiangsu Weifu Special Equipment Co., Ltd. proudly holds a prestigious national Class B manufacturing certificate. In the dynamic boiler market, where opportunities and challenges coexist, Weifu Boiler stands at the forefront by adhering to our core principles: 'creativity for development, credit for cooperation, and quality for market share.' Our commitment to these values ensures that we continuously innovate and maintain the highest standards of excellence, positioning ourselves as leaders in the industry. We are excited to share and amplify the remarkable value of Weifu Boiler with you, ensuring that our collaboration is as robust and rewarding as our renowned products.
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
Audited Supplier 
){kind=link}