Product Description
Gas Vacuum Hot Water Boiler
One machine for multiple purposes: Thanks to its ingenious design and robust structure, the vacuum boiler offers unparalleled versatility. This advanced system provides dual hot water outputs, catering to different temperature needs simultaneously. Whether utilizing the dual-circuit system independently or operating the single-circuit system, it ensures optimal flexibility and efficiency.
High thermal efficiency: The heat exchange process takes place within a fully enclosed vacuum chamber, ensuring exceptional efficiency. Crafted from the finest imported stainless steel, known for its superior heat transfer, this heat exchanger is a marvel of engineering. It not only boosts heat exchange efficiency but also significantly cuts down on energy consumption, delivering a tangible energy-saving impact.
Absolute safety: Operating under constant negative pressure, this boiler eliminates the risk of explosions. It is fortified with an array of safety features including temperature sensors, safety valves, and overheat protection. The vacuum control switches add an extra layer of security, ensuring all potential safety concerns are meticulously addressed.
Intelligent control: With state-of-the-art digital control and a user-friendly LCD screen, this system offers unprecedented control at your fingertips. The interface, displaying in Chinese, allows for effortless temperature adjustments, real-time monitoring of furnace temperature, and vacuum degree. Automatic recording of combustion time and operational anomalies simplifies management, enabling seamless, operator-free functioning.
Eliminate the trouble of registration procedures: Pre-assembled and operating under negative pressure, this boiler simplifies compliance. Its design negates the risk of expansion or explosion, exempting it from stringent inspections. This convenience translates into a hassle-free installation, freeing you from complex registration processes and minimizing associated costs.
Energy saving: Featuring a minimal heat medium water volume, this boiler excels in efficiency by conducting heat exchange within a negative pressure steam environment. It achieves the desired water temperature within mere minutes, eliminating preheating losses. The result is a system that not only meets your heating needs but also delivers remarkable energy savings.
Long life: Built for longevity, the heat exchanger is made of premium stainless steel, known for its rapid heat transfer and resistance to corrosion. Flange connections at pipe ends facilitate easy maintenance. The vacuum-sealed furnace body prevents corrosion and scaling, with heated tube bundles safely isolated from flame and flue gas exposure, thus significantly extending the system's service life.
Insulation structure: An innovative 100mm double-layer insulation structure minimizes external surface temperatures to ambient levels, enhancing safety. This design also maximizes thermal efficiency, ensuring the boiler operates optimally while conserving energy.
Imported low-nitrogen burner: This sophisticated burner guarantees efficient combustion with minimal noise. It produces low emissions, adhering strictly to the top-tier environmental standards of the nation, ensuring you stay compliant while optimizing 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 |
The 2024 version, designed for rear flue compatibility, features a green design that aligns with emissions standards of 120 mg, eliminating the 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 vibrant hub of Tieta Road, Guyang Town, Dantu District, Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. stands as a beacon of innovation and integrity.Our company is passionately dedicated to the seamless integration of boiler marketing resources across mainland China. Through our robust marketing network, we effectively communicate the esteemed concept, top-notch quality, competitive pricing, and superior service of Weifu's oil, gas, and electricity boilers to discerning customers. Guided by the noble philosophy of 'being a real person and doing things honestly,' we craft exquisite products that bring warmth to the world. Weifu champions an operational vision where customers receive unparalleled value, employees experience continuous growth, shareholders enjoy tangible benefits, our company achieves sustainable development, and the nation benefits from increased tax revenue.
Boasting a vibrant workforce of over 200 dedicated employees, we pride ourselves on having more than 40 skilled professional technicians who are specialized in diverse fields. Spanning more than 20,000 square meters, our state-of-the-art factory is equipped with cutting-edge manufacturing and testing facilities. We specialize in the innovative design and precise manufacture of gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers, all designed to meet modern standards of efficiency and reliability.
Driven by the business philosophy 'what customers need is what we make,' we focus on boiler products as our main offering. Our extensive lineup includes vertical/horizontal gas (oil) steam boilers, normal pressure/pressure hot water boilers, electric heating steam and hot water boilers, and gas (oil) thermal oil boiler series, spanning 7 comprehensive series with nearly 300 distinct specifications. Our entire product range proudly incorporates clean combustion technology, ensuring that each boiler operates with optimum environmental consideration. The design of our horizontal pressure boiler body incorporates advanced elements like the corrugated furnace, conical furnace, threaded smoke pipe, and the innovative wet back three-pass system, guaranteeing superior performance. Equipped with imported burners from renowned brands such as Riello, Aucma, Black & Decker, and Weishaupt, our boilers achieve remarkable efficiency, energy savings, and a minimized environmental impact. To enhance energy efficiency and environmental responsibility, our boilers are fitted with either pressure or normal pressure economizers and condensers that significantly lower exhaust temperatures and reduce emissions of dust, nitrogen oxides, and sulfur oxides within the flue gas. Weifu Boiler stands proudly as a recognized national supplier of small and medium-sized oil (gas, electric) boilers across China. Our extensive clientele spans across major and mid-sized cities throughout mainland China, reflecting our wide-reaching impact and commitment to quality. Our endeavors have significantly contributed to the environmental protection and energy conservation efforts within mainland China, marking us as leaders in sustainable innovation.
Certifications
Embracing Opportunities in the Boiler Market: Dedicated to excellence, Jiangsu Weifu Special Equipment Co., Ltd. holds a prestigious national Class B manufacturing certificate. In a competitive landscape where opportunities meet challenges, Weifu Boiler leads with an unwavering commitment to fostering development through innovation. Our principle of 'creativity for development, credit for cooperation, and quality for market share' drives us to excel and meet the demands of the market, ensuring our position as a trusted partner in the industry. Discover the value that Weifu Boiler brings to the table—let us share our journey of innovation and quality with you.
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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