Product Description
Gas Vacuum Hot Water Boiler
One machine for multiple purposes: With its ingeniously crafted design and unique structure, our vacuum boiler elegantly delivers dual hot water outputs at varying temperature levels simultaneously. Whether utilizing a dual-circuit system or an independent single-circuit system, this boiler offers unparalleled versatility to meet diverse needs.
High thermal efficiency: In our state-of-the-art vacuum chamber, the heat exchange process thrives within a perfectly sealed environment. Crafted from premium imported stainless steel, the materials ensure extraordinarily high heat transfer efficiency, resulting in remarkable energy savings and optimal performance.
Absolute safety: Operating under constant negative pressure, our boiler minimizes any risk of explosion. Enhanced with cutting-edge safety features such as temperature sensors, safety valves, overheat protection, and vacuum control switches, it meticulously addresses all potential safety concerns, offering a worry-free experience.
Intelligent control: Equipped with a sophisticated digital control system, featuring an intuitive LCD screen with Chinese display, this boiler offers seamless operation. Users can effortlessly set the temperature, while real-time displays of furnace temperature, vacuum level, and other parameters keep you informed. Automatic recording of combustion times and operational anomalies ensures a streamlined, user-friendly experience, eliminating the need for constant supervision.
Eliminate the trouble of registration procedures: Delivered fully assembled and operating under negative pressure, our boiler circumvents the risk of expansion or explosion, eliminating the need for rigorous supervision and inspection. During installation, forego the cumbersome registration processes, thereby reducing costs significantly.
Energy saving: Utilizing minimal heat medium water, this innovative vacuum chamber operates with negative pressure steam, ensuring rapid and efficient heat exchange. Within a mere ten minutes, water reaches the desired temperature without preheating losses, showcasing significant energy-saving benefits.
Long life: Built with high-grade stainless steel renowned for its superior heat transfer qualities and corrosion resistance, the heat exchanger promises swift heat conduction. Flange connections on pipe ends simplify maintenance and replacement, while the vacuum state of the furnace body prevents corrosion and scaling. The absence of direct flame or flue gas contact with the heated tube bundle significantly extends its lifespan.
Insulation structure: Featuring a robust 100mm double-layer insulation, this design ensures the exterior of the boiler remains safely at room temperature. This not only enhances safety but also optimizes thermal efficiency to a remarkable degree.
Imported low-nitrogen burner: Experience high-efficiency combustion with whisper-quiet operation and minimal exhaust emissions, perfectly aligning with the stringent standards of premier regions within the country.
| 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 |
2024 version according to the rear flue, green means no drawings according to 120 mg
| 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 bustling heart of Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. finds its home at Tieta Road, Guyang Town, Dantu District-a location that epitomizes its strategic vision and accessibility.Jiangsu Weifu Special Equipment Co., Ltd. is dedicated to forging a robust presence across mainland China by harmonizing boiler marketing resources. Through an expansive network, we deliver an unmatched blend of innovation, quality, competitive pricing, and exceptional service in our Weifu (oil, gas, electricity) boilers to a wide array of discerning customers. Embodying the ethos of integrity and excellence, our company is committed to creating outstanding products that bring warmth and reliability to the world. We champion a business model where our operations ensure value creation for customers, growth opportunities for employees, rewarding returns for shareholders, sustainable development for the company, and significant tax contributions to the nation.
Boasting a dedicated workforce, Jiangsu Weifu Special Equipment Co., Ltd. employs over 200 skilled professionals, with a contingent of more than 40 specialized technicians across various disciplines, underscoring our commitment to expertise and innovation. Spanning over 20,000 square meters, our state-of-the-art manufacturing facilities are equipped with cutting-edge equipment dedicated to the design and production of superior gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers, setting a benchmark in the industry.
Guided by the principle that 'what customers need is what we make,' we offer an extensive array of boiler products, including vertical and horizontal gas (oil) steam boilers, normal pressure and pressure hot water boilers, electric heating steam and hot water boilers, and gas (oil) thermal oil boiler series. With seven series encompassing nearly 300 specifications, our offerings are as diverse as they are innovative. Our product range incorporates cutting-edge clean combustion technology, ensuring efficient performance and environmental responsibility across all our boiler solutions. Our horizontal pressure boilers are engineered with pioneering designs, integrating advanced features such as corrugated furnaces, conical furnaces, threaded smoke pipes, and wet-back three-pass systems, optimizing performance and durability. Each boiler's heart is powered by premium imported burners including Riello, Aucma, Black & Decker, and Weishaupt, engineered to deliver superior efficiency, remarkable energy savings, and an eco-friendly footprint. Equipped with state-of-the-art pressure or normal pressure economizers and condensers, our boilers expertly minimize exhaust temperatures and emissions of dust, nitrogen oxides, and sulfur oxides, epitomizing energy efficiency and environmental stewardship. Weifu Boiler has proudly emerged as a leading national supplier of small and medium-sized oil (gas, electric) boilers, setting the standard for quality and innovation in China. Our esteemed clientele spans across major cities throughout mainland China, a testament to our expansive reach and trusted reputation. By championing environmental sustainability and energy conservation, we have significantly contributed to the ecological well-being of mainland China.
Certifications
The company holds a prestigious national Class B manufacturing certificate, affirming its excellence and commitment to quality. In a dynamic boiler market that thrums with both opportunities and challenges, Jiangsu Weifu Special Equipment Co., Ltd. strides confidently with its guiding tenets: innovation as the engine of growth, integrity as the foundation of partnership, and uncompromising quality as the key to capturing and expanding market share. We are thrilled to invite you to experience the shared values and visionary aspirations of Weifu Boiler, a company synonymous with innovation and trust.
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}