Product Description
Gas Vacuum Hot Water Boiler
One Machine for Multiple Purposes: Thanks to its groundbreaking design and distinct architecture, our vacuum boiler elevates efficiency by offering dual hot water outputs. Seamlessly providing hot water at varied temperature settings, it operates through an adaptable dual-circuit or single-circuit system, which can function independently. This state-of-the-art system guarantees unparalleled versatility and practicality.
High Thermal Efficiency: Immerse yourself in extraordinary heat exchange within an entirely sealed vacuum chamber. Crafted from the finest imported stainless steel, our heat exchanger achieves unmatched thermal transfer efficiency. This leads to exceptional energy savings, making it not just highly effective but also a beacon of environmental stewardship.
Absolute Safety: Safety is our utmost priority. Functioning under a perpetual negative pressure, our boiler eliminates any explosion risks. Equipped with temperature sensors, safety valves, overheat protection, and vacuum control switches, our multi-layered safety systems thoroughly tackle all potential dangers. Relax with unparalleled peace of mind.
Intelligent Control: Enhance your experience with our cutting-edge digital control system, featuring an intuitive LCD screen with a Chinese display. With advanced technology, you can easily set your desired temperature while monitoring real-time parameters such as furnace temperature and vacuum levels. The system also records combustion times and operational faults, ensuring a seamless, user-friendly, and hands-free operation.
Eliminate Registration Procedure Hassles: Our boiler is delivered fully assembled, operating under negative pressure. This design negates risks of expansion or explosion, liberating you from regulatory oversight and inspections. Simplify your installation process by bypassing tedious registration procedures, significantly lowering associated costs.
Energy Saving: Enjoy remarkable energy efficiency due to the minimal heat medium water requirement. Heat exchange occurs swiftly within the negative pressure vacuum chamber, heating water to your set temperature in less than ten minutes without any preheating loss. Delight in substantial energy savings.
Long Life: Engineered for longevity, our heat exchanger is crafted from top-grade stainless steel, celebrated for superior heat transfer and corrosion resistance. The flanged pipe connections simplify maintenance and replacement. Operating in a vacuum state prevents corrosion or scaling, while the separation of the tube bundle from flame or flue gas significantly extends service life.
Insulation Structure: Featuring a robust 100mm double-layer insulation structure, our design keeps external surface temperature at room levels, enhancing safety while significantly boosting thermal efficiency.
Imported Low-Nitrogen Burner: Our sophisticated burner ensures high-efficiency combustion with minimal noise and exhaust emissions, meeting the stringent standards of top national 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 |
Our 2024 model, crafted with a rear flue, exemplifies green compliance without requiring drawings, aligning with the 120 mg standard.
| 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 within the bustling Guyang Town of Dantu District in Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. is prestigiously positioned on Tieta Road.Jiangsu Weifu Special Equipment Co., Ltd. is on a mission to transform boiler marketing across mainland China. With an extensive and powerful marketing network, we ensure that the unmatched quality, competitive pricing, and exemplary service of Weifu's renowned oil, gas, and electricity boilers reach our esteemed customers directly, redefining their expectations. Anchored by our core values of 'genuine integrity and craftsmanship,' we are on a relentless pursuit to craft world-class products that warm the globe. Weifu is dedicated to delivering true value to customers, empowering our employees' growth, rewarding our shareholders, driving company advancement, and making significant contributions to the national economy through tax revenue.
Our energetic team is comprised of over 200 committed professionals, enhanced by a cadre of more than 40 expert technicians across a variety of specialties, propelling innovation and ensuring excellence. Within an expansive 20,000 square meters of advanced factory facilities, we are armed with state-of-the-art manufacturing and testing equipment. Our forte is in designing and producing a wide array of gas, oil, and electricity-fired hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers.
Driven by the philosophy of 'crafting what our customers need,' our diversified portfolio includes vertical and horizontal gas (oil) steam boilers, pressure and non-pressure hot water boilers, electric heating solutions, and gas (oil) thermal oil boiler series. Our offerings span 7 distinct series and nearly 300 meticulously crafted specifications. Our entire product line is a testament to advanced clean combustion technology, setting new benchmarks in efficiency and sustainability for the industry. The horizontal pressure boiler design features groundbreaking structures such as corrugated furnaces, conical furnaces, threaded smoke pipes, and the highly efficient wet back three-pass systems, all engineered to perfection. Every boiler is outfitted with high-performance imported burners from esteemed brands like Riello, Aucma, Black & Decker, and Weishaupt, ensuring not only optimal performance but also energy efficiency and environmental stewardship. To further enhance efficiency and sustainability, our boilers are paired with pressure or non-pressure economizers and condensers, significantly reducing exhaust temperatures and cutting emissions of dust, nitrogen oxides, and sulfur oxides, setting new environmental standards. Weifu Boiler stands proudly as a national leader in the provision of small and medium-sized oil, gas, and electric boilers across China, setting the benchmark for quality and reliability. Our prestigious clientele spans across significant urban centers and thriving cities throughout mainland China, reflecting the trust and confidence placed in our superior products. Jiangsu Weifu is unwavering in its commitment to fostering environmental protection and energy conservation throughout mainland China, making a substantial positive impact on our planet.
Certifications
Jiangsu Weifu Special Equipment Co., Ltd. proudly holds the esteemed national Class B manufacturing certificate. In a dynamic boiler market filled with both opportunities and challenges, Weifu Boiler remains unwavering in its dedication to its foundational principles: 'creativity for development, credit for cooperation, and quality for market share.' By steadfastly embracing these values, Weifu Boiler not only ensures a powerful market presence but also secures its lasting success and leadership within the industry. We are thrilled to reveal the exceptional value that Weifu Boiler represents, warmly inviting you to discover and experience our unwavering commitment to excellence and groundbreaking innovation.
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}