Product Description
Gas Vacuum Hot Water Boiler
One machine for multiple purposes: Thanks to its innovative design and robust structure, this vacuum boiler offers the versatility of dual hot water outputs, catering to distinct temperature requirements simultaneously. It boasts a dual-circuit system or an independent single-circuit system, providing unmatched flexibility in hot water management.
High thermal efficiency: With a cutting-edge heat exchange process that circulates within a fully sealed vacuum chamber, our boiler is crafted from imported stainless steel materials renowned for their superior heat transfer capabilities. This ensures remarkable heat exchange efficiency, leading to substantial energy savings and a smaller carbon footprint.
Absolute safety: Operating perpetually under a negative pressure state, this boiler virtually eliminates explosion risks. It comes fortified with advanced safety features, including precise temperature sensors, reliable safety valves, comprehensive overheat protection, and intelligent vacuum control switches, ensuring thorough safeguarding against any potential hazards.
Intelligent control: Our state-of-the-art digital control system, featuring an intuitive LCD screen with a comprehensive Chinese display, takes convenience to new heights. With flexible temperature settings, real-time visualization of furnace temperature and vacuum levels, and automatic recording of combustion times and operational faults, it offers user-friendly operation, enabling seamless, unmanned functionality.
Eliminate the trouble of registration procedures: Pre-assembled and operating under negative pressure, this boiler bypasses expansion and explosion risks, freeing you from the need for stringent supervision and inspection. The installation process is streamlined, exempting you from cumbersome registration procedures, thus significantly reducing operational costs.
Energy saving: Utilizing a minimal amount of heat medium water, the vacuum chamber enables efficient heat exchange with negative pressure steam, delivering warm water at the desired temperature in under ten minutes without preheating losses. This translates into exceptional energy conservation and cost efficiency.
Long life: Crafted from premium stainless steel, the heat exchanger ensures optimal heat transfer and exceptional resistance to corrosion. Its flange-connected pipe ends facilitate effortless maintenance and replacements. The furnace's vacuum state prevents corrosion and scaling, as the heated tube bundle avoids direct contact with flames or flue gases, significantly extending the boiler's service life.
Insulation structure: Incorporating a 100mm double-layer insulation structure, this boiler minimizes external touch temperatures to room level, enhancing safety and optimizing thermal efficiency to remarkable levels.
Imported low-nitrogen burner: Experience high-efficiency combustion with minimal noise and low exhaust emissions, fully compliant with the stringent standards of first-class areas across 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 |
The 2024 version, designed to accommodate the rear flue, boasts an eco-friendly design with compliance to 120 mg standards, ensuring no need for additional drawings.
| 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 scenic Tieta Road of Guyang Town, Dantu District, Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. stands as a beacon of innovation and excellence in the heart of China's thriving industrial landscape.Jiangsu Weifu Special Equipment Co., Ltd. is dedicated to revolutionizing the boiler industry across mainland China. Through a robust marketing network, we seamlessly deliver the Weifu brand's essence—unmatched quality, competitive pricing, and exceptional service—whether it's oil, gas, or electric boilers, straight to our valued customers. Guided by the ethos of 'being a real person and doing things honestly,' Jiangsu Weifu excels in crafting superior products that bring warmth to the world. We advocate for value creation for customers, continuous growth for employees, profit for shareholders, sustainable development for the company, and significant tax contributions to the nation.
With a dynamic team of over 200 dedicated professionals, including 40+ skilled technicians, our company is a powerhouse of expertise and innovation. Spanning over 20,000 square meters, our state-of-the-art facilities are equipped with cutting-edge manufacturing and testing equipment. We specialize in the meticulous design and production of diverse hot water, steam, vacuum hot water, and organic carrier boilers powered by gas, oil, or electricity.
Embracing the philosophy of 'what customers need is what we make,' our product portfolio primarily features boiler solutions. We have developed an extensive range, including vertical/horizontal gas (oil) steam boilers, both normal and pressurized hot water boilers, electric heating options, and thermal oil boiler series, with a remarkable 7 series and nearly 300 specifications. Our entire product line proudly incorporates advanced clean combustion technology, ensuring minimal environmental impact. The advanced design of our horizontal pressure boilers features innovative structures like corrugated furnaces, conical furnaces, threaded smoke pipes, and a wet-back three-pass system, setting industry benchmarks. Our main boilers are fitted with high-performance imported burners from renowned brands like Riello, Aucma, Black & Decker, and Weishaupt, delivering unparalleled efficiency, energy savings, and eco-friendly operation. Equipped with cutting-edge pressure or normal pressure economizers and condensers, our boilers significantly lower exhaust temperatures while minimizing emissions of dust, nitrogen oxides, and sulfur oxides, enhancing energy efficiency, and environmental stewardship. Weifu Boiler has proudly emerged as a national leader in small and medium-sized oil, gas, and electric boiler solutions, serving diverse needs across China. Our loyal customer base flourishes in major metropolitan areas across mainland China, reflecting our widespread acclaim. We are proud contributors to the noble cause of environmental protection and energy conservation throughout mainland China.
Certifications
Jiangsu Weifu Special Equipment Co., Ltd., a distinguished leader in the industry, proudly holds a national Class B manufacturing certificate. In the dynamic boiler market, where opportunities and challenges go hand in hand, Weifu Boiler remains steadfast in its commitment to 'creativity for development, credit for cooperation, and quality for market share.' These guiding principles ensure we consistently meet and exceed customer expectations. Join us as we unveil the exceptional value of Weifu Boiler. Experience unparalleled innovation, reliability, and advanced technology, all crafted to elevate your standards and exceed your expectations.
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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