Product Description
Gas Vacuum Hot Water Boiler
One machine for multiple purposes: Engineered with precision, the innovative vacuum boiler boasts a special design and structure, providing dual hot water outputs. This allows you to elegantly deliver water at varying temperatures simultaneously, thanks to its advanced dual-circuit system. Alternatively, enjoy the flexibility of a single-circuit system, letting you operate each independently to cater to diverse needs.
High thermal efficiency: Experience unparalleled heat exchange in a fully enclosed vacuum chamber. Crafted from premium imported stainless steel, this marvel offers exceptional heat transfer efficiency. Revel in the outstanding energy savings and superior thermal performance of this heat exchanger, setting new standards in efficiency.
Absolute safety: Ensuring peace of mind, the boiler operates under a constant negative pressure, eliminating any risk of explosion. Layered with protection, it features temperature sensors, safety valves, overheat protection, and vacuum control switches. Every potential safety concern is meticulously addressed, offering you comprehensive security.
Intelligent control: Embrace cutting-edge technology with digital control and an intuitive LCD screen displaying in Chinese. The advanced control system allows for seamless temperature settings, real-time display of furnace temperature, vacuum degree, and more. Effortlessly monitor operational data, as combustion time and faults are logged automatically, all with the luxury of hands-free operation.
Eliminate the trouble of registration procedures: Shipped fully assembled, this boiler operates under negative pressure, eradicating risks of expansion or explosion. Freed from mandatory supervision and inspection, your installation process is blissfully free of cumbersome registration procedures, streamlining operations and minimizing costs effectively.
Energy saving: Innovative design ensures minimal heat medium water usage. With negative pressure steam in the vacuum chamber, achieve efficient heat exchange, delivering warm water at your desired temperature in just ten minutes—no preheating required. Enjoy noticeable energy savings and optimal performance.
Long life: Constructed with superior stainless steel, this heat exchanger offers extraordinary heat transfer and corrosion resistance. Flange connections at pipe ends enable easy maintenance. Operating in a vacuum state, it prevents corrosion and scaling, keeping heated tubes away from flames or flue gas, significantly prolonging its lifespan.
Insulation structure: Featuring a robust 100mm double-layer insulation structure, this design minimizes the boiler's external touch temperature to ambient levels, enhancing safety while substantially boosting thermal efficiency. A masterpiece of engineering that combines safety with superior performance.
Imported low-nitrogen burner: With efficiency at its core, this burner delivers high-performance combustion, reduced noise, and minimal exhaust emissions, meeting the stringent standards of first-class environmental 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 is ingeniously aligned with the rear flue. With green indicators and a lack of necessity for drawings, it adheres to the stringent benchmark of 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
Jiangsu Weifu Special Equipment Co., Ltd. proudly stands at Tieta Road, Guyang Town, Dantu District, Zhenjiang City, a hub of innovation and excellence.Our company is dedicated to the seamless integration of boiler marketing resources across mainland China. Through a robust and expansive marketing network, we deliver the essence of Weifu's oil, gas, and electricity boilers — encompassing quality, competitive pricing, and unparalleled service — directly to our valued customers. Driven by a philosophy of authenticity and integrity, Weifu is all about crafting superior products that warm the world. We champion a business model where our customers experience true value, our employees gain professional growth, our shareholders realize tangible benefits, our company achieves progressive development, and we contribute positively to national tax revenues.
Our dynamic team comprises over 200 dedicated professionals, including more than 40 highly skilled technicians, committed to excellence. Spanning over 20,000 square meters, our state-of-the-art factory is equipped with advanced manufacturing and testing technologies. We specialize in the design and manufacture of cutting-edge gas, oil, and electricity-driven hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers.
Guided by the philosophy 'what customers need is what we create', our focus on boiler products has led to the development of an impressive portfolio. This includes vertical and horizontal gas and oil steam boilers, normal and pressure hot water boilers, electric heating steam and hot water boilers, and thermal oil boiler series, boasting 7 distinct series and nearly 300 specifications, catering to diverse customer demands. Every product we offer leverages cutting-edge clean combustion technology, setting new standards in the industry. Our horizontal pressure boiler design incorporates avant-garde features like corrugated furnaces, conical furnaces, threaded smoke pipes, and wet back three-pass structures, ensuring superior performance. Equipped with premium imported burners including Riello, Aucma, Black & Decker, and Weishaupt, our boilers achieve exceptional efficiency, remarkable energy savings, and outstanding environmental protection. Our boilers come with pressure or normal pressure economizers and condensers to significantly lower exhaust temperatures, minimizing emissions of dust, nitrogen oxides, and sulfur oxides. This ensures that our boilers are not only energy-efficient but also environmentally conscious. Weifu Boiler has proudly established itself as a leading national supplier of small and medium-sized oil, gas, and electric boilers throughout China. Our esteemed clientele spans across the major urban centers of mainland China, reflecting our extensive reach and trusted reputation. We take pride in our contributions to environmental protection and energy conservation initiatives across mainland China, reinforcing our commitment to sustainability.
Certifications
The company proudly holds a prestigious national Class B manufacturing certificate. In the dynamic landscape of the boiler market, where boundless opportunities meet formidable challenges, Weifu Boiler stands resilient, committed to its core principles of 'creativity for development, credit for cooperation, and quality for market share.' With this steadfast dedication, Weifu Boiler continues to forge a path of innovation and excellence, ensuring a competitive edge in the industry. We are excited to share the exceptional value of Weifu Boiler with you, demonstrating our unwavering commitment to quality and innovation. Discover the distinct advantages that set Weifu Boiler apart in the market.
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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