Product Description
Gas Vacuum Hot Water Boiler
One machine for multiple purposes: With innovative and unique design and structure, our vacuum boiler offers the versatility of dual hot water outputs. It seamlessly provides hot water at varied temperature differences simultaneously, utilizing either a dual-circuit or single-circuit system, which can function independently to cater to diverse needs.
High thermal efficiency: The heat exchange process operates within a completely sealed vacuum chamber, ensuring optimal efficiency. Constructed from premium imported stainless steel known for its superior heat transfer capabilities, the heat exchanger delivers remarkable heat exchange efficiency, resulting in significant energy conservation and cost-saving benefits.
Absolute safety: Engineered with safety as a top priority, the boiler maintains a constant negative pressure state during operation, thus eliminating explosion risks. It comes equipped with cutting-edge safety features, including temperature sensors, safety valves, overheat protection, and vacuum control switches, providing comprehensive protection against potential hazards.
Intelligent control: Our advanced digital control system boasts an intuitive LCD screen with Chinese display options, offering enhanced user experience. Easily set the desired temperature, while real-time monitoring of furnace temperature, vacuum levels, and other parameters is displayed. With automated logging of combustion times and operational faults, operation remains straightforward, minimizing the need for manual intervention.
Eliminate the trouble of registration procedures: Pre-installed and operating under stable negative pressure, the boiler avoids any risk of expansion or explosion, exempting it from stringent supervision and inspection. This feature allows for a seamless installation process, sparing you from cumbersome registration formalities and significantly reducing associated costs.
Energy saving: Thanks to the minimal heat medium water requirement, heat exchange takes place efficiently in a vacuum chamber with negative pressure steam. This ensures the production of warm water at the set temperature in under ten minutes, without preheating losses, maximizing energy conservation for outstanding results.
Long life: Crafted from corrosion-resistant stainless steel, the heat exchanger delivers rapid heat transfer and durability. Flanged pipe connections facilitate easy maintenance and replacement. The vacuum state of the furnace body prevents corrosion and scaling, with heating tube bundles isolated from flame or flue gas contact, significantly extending the boiler's lifespan.
Insulation structure: Employing a robust 100mm double-layer insulation structure, the boiler's external touch temperature is maintained at ambient room levels, enhancing overall safety while substantially boosting thermal efficiency.
Imported low-nitrogen burner: This state-of-the-art burner ensures high-efficiency combustion with minimal noise and low exhaust emissions, fully complying with national standards for premium environmental performance.
| 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 |
In the 2024 version, the rear flue design highlights our commitment to eco-friendliness, adhering to stringent standards with emissions capped at 120 mg, without requiring additional diagrams.
| 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
Situated gracefully on Tieta Road in the vibrant Guyang Town, Dantu District of Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. positions itself at the heart of innovation.With an unwavering commitment to excellence, the company orchestrates a seamless integration of boiler marketing resources across mainland China. Utilizing an expansive marketing network, Weifu captivates its audience by delivering unparalleled concepts, impeccable quality, competitive pricing, and stellar service for its diverse range of oil, gas, and electricity boilers. Upholding the tenet of "being a real person and doing things honestly," the company crafts exquisite products that warm the world. Emphasizing mutual growth, Weifu ensures that customers receive tangible value, employees experience personal growth, shareholders enjoy fruitful returns, the company thrives in development, and the nation benefits from tax revenue.
Boasting a dedicated team of over 200 professionals, including a cadre of more than 40 expert technicians across various specialties, the company stands as a beacon of talent and innovation. Spanning over 20,000 square meters, the company's state-of-the-art factory is home to advanced manufacturing and testing facilities. The company specializes in the innovative design and production of an array of boilers: gas, oil, and electricity hot water boilers; steam boilers; vacuum hot water boilers; and organic carrier boilers—each crafted to meet the highest standards of excellence.
Guided by the philosophy of crafting what customers truly need, Weifu focuses on boiler products as its core offering. The company has meticulously developed a comprehensive range featuring vertical and horizontal gas (oil) steam boilers, normal pressure and pressure hot water boilers, electric heating steam boilers, and thermal oil boiler series. This impressive lineup encompasses 7 series and nearly 300 unique specifications. Every product in the company's lineup incorporates cutting-edge clean combustion technology, setting a new benchmark for the industry. The horizontal pressure boiler design boasts state-of-the-art features, including corrugated and conical furnaces, threaded smoke pipes, and an innovative wet back three-pass structure, ensuring unmatched performance and reliability. Equipped with burners from renowned brands like Riello, Aucma, Black & Decker, and Weishaupt, the boilers exemplify high efficiency, energy conservation, and eco-friendliness, taking performance to new heights. With the inclusion of sophisticated pressure or normal pressure economizers and condensers, the boilers significantly lower exhaust temperatures, while minimizing dust, nitrogen oxides, and sulfur oxides in the flue gas. This makes Weifu boilers a paragon of energy efficiency and environmental responsibility. Weifu Boiler proudly stands as a national leader among suppliers of small and medium-sized oil, gas, and electric boilers in China. Our esteemed clientele spans prominent large and medium-sized cities throughout mainland China, underscoring our widespread influence. Through advanced technology and sustainable practices, Weifu has made notable contributions to environmental protection and energy conservation across the region.
Certifications
The company holds a prestigious national Class B manufacturing certificate. In the dynamic boiler market, where opportunities and challenges thrive side by side, Weifu Boiler remains steadfast in its mission: "Creativity for development, credit for cooperation, quality for market share." This principle not only guides us but propels our relentless pursuit of innovation and excellence. Join us as we share the unparalleled value of Weifu Boiler, a brand synonymous with quality and ingenuity. Discover how we redefine standards and empower your energy 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
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