Product Description
Gas Vacuum Hot Water Boiler
One machine for multiple purposes: Thanks to an innovative design and sophisticated structure, our vacuum boiler excels in versatility by delivering dual hot water outputs with distinct temperature variations simultaneously. This is achieved through an adaptable dual-circuit or single-circuit system, granting the flexibility of independent operation to seamlessly cater to diverse needs.
High thermal efficiency: Experience superior heat exchange with our boiler, where heat circulates in a completely sealed vacuum chamber. Constructed from premium imported stainless steel, it boasts exceptional heat transfer efficiency. This translates to outstanding energy savings and remarkably efficient heat exchange.
Absolute safety: Operating under a constant negative pressure, our boiler eliminates the risk of explosions. Equipped with an array of safety features such as temperature sensors, safety valves, overheat protection, and vacuum control switches, it assures comprehensive protection, addressing all potential safety concerns diligently.
Intelligent control: Our cutting-edge digital control system enhances ease of use with an LCD screen displaying in Chinese. Effortlessly set your desired temperature while real-time updates of furnace temperature, vacuum levels, and combustion timings appear on-screen. It records operational faults automatically, enabling smooth, operator-free functionality.
Eliminate the trouble of registration procedures: Shipping as a complete unit, the boiler operates under negative pressure, preventing expansion risks and removing the necessity for supervision and inspection. This exemption from complex registration requirements streamlines installation and minimizes associated costs effectively.
Energy saving: Featuring minimal heat medium water, our system facilitates efficient heat exchange within a vacuum chamber using negative pressure steam. It quickly achieves the desired warm water temperature in under ten minutes, minimizing preheating losses and delivering substantial energy savings.
Long life: Crafted from top-grade stainless steel for optimal heat transfer and corrosion resistance, our heat exchanger ensures fast heat transfer. With flanged pipe ends for easy maintenance, its vacuum-sealed design prevents corrosion or scaling, while the tube bundle remains untouched by flames, extending its service life remarkably.
Insulation structure: Utilizing a 100mm double-layer insulation system, our design keeps the external boiler temperature at room level. This not only enhances safety but also significantly boosts the thermal efficiency, elevating overall performance.
Imported low-nitrogen burner: Our burners promise high-efficiency combustion with minimal noise and reduced emissions, meeting the stringent standards required by the nation's first-class regions.
| 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 aligns with the rear flue specifications, denoted in green, indicating no drawings are needed in accordance with 120 mg standards.
| 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. is elegantly situated on Tieta Road, in the charming Guyang Town, Dantu District, Zhenjiang City.Our company prides itself on seamlessly integrating boiler marketing resources across mainland China. Through our extensive marketing network, we effectively communicate the core values of Weifu's high-quality (oil, gas, electricity) boilers—focusing on their unrivaled quality, competitive pricing, and unparalleled service—to our esteemed customers. Embracing the timeless philosophy of 'being a real person and doing things honestly', we are dedicated to crafting exquisite products that warm the hearts and homes of our customers. Our visionary approach ensures that throughout the Weifu boiler market journey, customers receive true value, employees experience growth, shareholders enjoy rewards, the company achieves progressive development, and the nation benefits from substantial tax contributions.
Our dynamic team consists of over 200 dedicated employees, among whom are more than 40 highly skilled professional technicians, each contributing their expertise across various fields. Our state-of-the-art facilities span an impressive 20,000 square meters, featuring modern factory buildings and cutting-edge manufacturing and testing equipment. We specialize in the innovative design and meticulous manufacture of a wide array of boiler systems, including gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers, all engineered for superior performance.
Driven by our customer-centric business philosophy, 'what customers need is what we make', our primary focus remains on delivering exceptional boiler products. We have successfully developed a diverse portfolio that includes vertical/horizontal gas (oil) steam boilers, normal pressure/pressure hot water boilers, electric heating steam boilers, and an extensive range of thermal oil boiler series. With 7 series and nearly 300 distinct specifications, we cater to a wide spectrum of needs. Our entire product lineup incorporates cutting-edge clean combustion technology, underscoring our commitment to environmentally responsible engineering. Our horizontal pressure boilers are masterfully designed with avant-garde features such as corrugated furnaces, conical furnaces, threaded smoke pipes, and wet back three-pass systems, ensuring superior performance and reliability. Featuring imported burners from renowned brands like Riello, Aucma, Black & Decker, and Weishaupt, our boiler systems are engineered for optimal efficiency, remarkable energy savings, and impeccable environmental protection. Equipped with advanced pressure or normal pressure economizers and condensers, our boilers significantly reduce exhaust temperatures and lower the concentration of dust, nitrogen oxides, and sulfur oxides in flue gas, epitomizing energy-saving and eco-friendly solutions. Weifu Boiler is proudly recognized as a national leader in providing small and medium-sized oil (gas, electric) boilers throughout China. Our valued clientele spans across major and midsize cities throughout mainland China, reflecting our expansive reach and trusted reputation. We are dedicated to advancing environmental protection and promoting energy conservation across mainland China, making a tangible impact on the nation's ecological and economic well-being.
Certifications
Our esteemed company proudly holds a prestigious national Class B manufacturing certificate. In the dynamic boiler market where opportunities and challenges coexist, Weifu Boiler stands resolute, committed to the principles of 'Creativity for Development, Credit for Cooperation, Quality for Market Share.' This ethos fuels our drive to lead the industry with innovation and trust. Join us on an inspiring journey as we share the unparalleled value of Weifu Boiler with you. Experience the exceptional quality and advanced technology that sets us apart in the field of boiler manufacturing, designed to cater to your every need with precision and excellence.
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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