Product Description

Gas Vacuum Hot Water Boiler
One machine for multiple purposes: Thanks to its innovative design and structure, the vacuum boiler boasts dual hot water outputs, enabling simultaneous delivery of water at varying temperatures. This flexibility is achieved through a dual-circuit system or a single-circuit option, providing versatility and independence in operation.
High thermal efficiency: With heat exchange occurring within a fully enclosed vacuum chamber, crafted from superior imported stainless steel, the boiler exhibits unparalleled heat transfer efficiency. This results in outstanding energy conservation and a significant boost in heat exchange performance.
Absolute safety: Operating under constant negative pressure, the boiler eliminates explosion risks. It features a comprehensive safety suite, including temperature sensors, safety valves, overheat protection, and vacuum control switches, addressing every potential safety concern with diligence.
Intelligent control: Offering cutting-edge digital control via an LCD display with Chinese interface, the system provides real-time visibility of parameters such as temperature, vacuum degree, and more. It autonomously records combustion times and operational anomalies, ensuring ease of use and enabling unattended operation.
Eliminate the trouble of registration procedures: Delivered fully assembled and operating under negative pressure, this boiler circumvents the risk of expansion or explosion, thus exempting it from routine supervision and inspection. Installation is streamlined, bypassing cumbersome registration processes and minimizing operational costs.
Energy saving: Optimal heat exchange in the vacuum chamber, powered by minimal heat medium water and negative pressure steam, achieves high efficiency, producing warm water swiftly within ten minutes without any preheating losses, ensuring impressive energy conservation.
Long life: Constructed with premium stainless steel for unmatched heat transfer and corrosion resistance, the heat exchanger is designed for easy maintenance with flange connections at the pipe ends. The vacuum-sealed furnace body is free from corrosion or scaling, significantly prolonging its service life by protecting the heated tubes from direct flame or flue gas contact.
Insulation structure: Featuring a robust 100mm double-layer insulation, the boiler maintains an external temperature equivalent to room temperature, enhancing safety and substantially elevating its thermal efficiency.
Imported low-nitrogen burner: Engineered for high-efficiency combustion with minimal noise and reduced exhaust emissions, this burner meets the stringent environmental standards of the nation's most regulated areas.
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, designed with a rear flue, adheres to green standards, requiring no additional drawings for compliance with 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
Jiangsu Weifu Special Equipment Co., Ltd. is strategically nestled at Tieta Road, Guyang Town, Dantu District, Zhenjiang City, offering a pivotal location for business endeavors.With a strong commitment to excellence, the company integrates comprehensive boiler marketing resources across mainland China. Through a well-structured marketing network, it eloquently conveys the exceptional concept, superior quality, competitive pricing, and dedicated service of Weifu's oil, gas, and electricity boilers to a broad spectrum of discerning customers. Guided by the noble principle of "being a real person and doing things honestly," Jiangsu Weifu Special Equipment Co., Ltd. is dedicated to crafting fine products that warm the world. In its market operations, the company ensures that customers receive unparalleled value, employees experience significant growth, shareholders reap benefits, the company achieves continuous development, and the nation gains valuable tax contributions.
With a robust team of over 200 dedicated employees, including more than 40 skilled professional technicians from various disciplines, the company is well-equipped to drive innovation and quality. Spanning over 20,000 square meters, our state-of-the-art factory is a hub of advanced manufacturing and testing excellence. Specializing in the design and manufacture of top-tier gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers, the company is a leader in the industry.
Reflecting the business philosophy of "what customers need is what we make," the company excels in developing a vast array of high-quality boiler products, including vertical and horizontal gas (oil) steam boilers, normal pressure/pressure hot water boilers, and electric heating steam boilers. With a total of 7 series offering nearly 300 specifications, Jiangsu Weifu Special Equipment Co., Ltd. caters to nearly every customer need. Our products are distinguished by their adoption of clean combustion technology, ensuring environmentally friendly and efficient performance. The design of our horizontal pressure boilers incorporates cutting-edge structures such as corrugated furnaces, conical furnaces, threaded smoke pipes, and the wet-back three-pass system, setting a new standard in boiler efficiency and reliability. Our boiler main engines are complemented with world-renowned imported burners including Riello, Aucma, Black & Decker, and Weishaupt, resulting in outstanding efficiency, energy savings, and environmental protection. Equipped with pressure or normal pressure economizers and condensers, our boilers effectively lower exhaust temperatures and reduce dust, nitrogen oxides, and sulfur oxides in the flue gas, enhancing both energy efficiency and environmental sustainability. Weifu Boiler proudly stands as a national leader in supplying small and medium-sized oil (gas, electric) boilers across China, demonstrating unparalleled expertise and commitment. Our diverse clientele spans large and medium-sized cities throughout mainland China, reflecting our extensive reach and trusted service. Through our innovations and responsible practices, we have significantly contributed to environmental protection and energy conservation efforts across 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 intertwine, Weifu Boiler stands firm on its principles of 'Creativity for Development, Credit for Cooperation, and Quality for Market Share.' Join us as we unfold and share the exceptional value of Weifu Boiler, a leader in innovative and sustainable hot water solutions.
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