Product Description

Gas Vacuum Hot Water Boiler
One machine for multiple purposes: With its groundbreaking design and innovative structure, this vacuum boiler boasts the capability to deliver dual hot water outputs. It can simultaneously provide hot water with varying temperature differences through its ingenious dual-circuit system or an independent single-circuit system, allowing unparalleled versatility.
High thermal efficiency: Experience superior heat exchange within a fully enclosed vacuum chamber. Crafted from premium imported stainless steel, this unit achieves exceptional heat transfer efficiency. The result? Outstanding energy savings and elevated heat exchange performance that set a new benchmark for boilers.
Absolute safety: Designed to operate under a perpetual negative pressure state, this boiler eliminates any risk of explosion. It comes fully equipped with temperature sensors, safety valves, overheat protection, and vacuum control switches. These comprehensive multi-layer safety measures ensure every potential hazard is addressed and mitigated.
Intelligent control: Featuring cutting-edge digital control and an LCD screen with Chinese display, the system offers unparalleled advancements. Enjoy the freedom to set temperatures as you desire, with real-time display of furnace temperature and vacuum degree. Experience seamless operation with automatic logging of combustion time and fault recognition, simplifying user interaction to a level where no manual operation is necessary.
Eliminate the trouble of registration procedures: Operating under negative pressure, this boiler arrives fully assembled and requires no supervision or inspection due to absence of expansion risks. This allows you to bypass cumbersome registration procedures imposed by functional departments, thereby significantly reducing your operational costs.
Energy saving: This state-of-the-art boiler uses minimal heat medium water, facilitating heat exchange within its vacuum chamber using negative pressure steam. It quickly produces warm water at the desired temperature in under ten minutes, with no preheating loss, ensuring remarkable energy efficiency and savings.
Long life: Constructed with stainless steel renowned for its excellent heat transfer abilities, this heat exchanger offers swift heat conduction and robust corrosion resistance. Flange connections at pipe ends enable easy maintenance and replacement. The vacuum state of the furnace body prevents corrosion and scaling, while the tube bundle remains untouched by flame or flue gas, thus significantly prolonging its lifespan.
Insulation structure: Incorporating a 100mm double-layer insulation structure, this boiler reduces external surface temperature to match that of the room. This not only enhances safety but also substantially boosts the boiler's thermal efficiency.
Imported low-nitrogen burner: Delivers outstanding combustion efficiency with minimal noise and reduced exhaust emissions, aligning perfectly with the stringent requirements of the nation's top-tier environmental standards.
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, aligned with the rear flue guidelines, signifies compliance with the 120 mg standards, as indicated by the green designation.
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 heart of Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. stands proudly on Tieta Road, Guyang Town, Dantu District, as a beacon of innovation and quality.Dedicated to harnessing and unifying boiler marketing resources across mainland China, Jiangsu Weifu Special Equipment Co., Ltd. employs its expansive marketing network to deliver Weifu's unparalleled product concepts, superior quality standards, competitive pricing, and exceptional service in oil, gas, and electric boilers to a diverse and discerning customer base. Guided by the ethos of 'being true to oneself and acting with integrity,' Jiangsu Weifu is committed to crafting premium products that warm the world. The company envisions a thriving enterprise where customers find value, employees attain growth, shareholders enjoy returns, companies achieve progress, and the nation benefits from substantial tax contributions.
Boasting a dynamic team of over 200 dedicated professionals, including more than 40 skilled technicians, Jiangsu Weifu Special Equipment Co., Ltd. is a powerhouse of talent and expertise. Spanning over 20,000 square meters, our state-of-the-art manufacturing facility is equipped with cutting-edge machinery and testing equipment, specializing in the innovative design and production of gas, oil, and electric hot water and steam boilers, vacuum hot water boilers, and organic carrier boilers.
Embracing a customer-centric business philosophy of 'creating what the customer needs,' Jiangsu Weifu offers a comprehensive lineup of boiler products as its core offering. The range includes vertical/horizontal gas (oil) steam boilers, vertical gas (oil) normal pressure/pressure hot water boilers, horizontal gas (oil) steam boilers, horizontal gas (oil) normal pressure/pressure hot water boilers, electric heating steam boilers, electric heating normal pressure hot water boilers, and gas (oil) thermal oil boilers. In total, this encompasses 7 diverse series and nearly 300 unique specifications. All products proudly incorporate advanced clean combustion technology, ensuring environmental responsibility and operational excellence. The sophisticated horizontal pressure boiler design integrates advanced features such as corrugated furnaces, conical furnaces, threaded smoke pipes, and the efficient wet back three-pass system. Equipped with world-class imported burners from renowned brands like Riello, Aucma, Black & Decker, and Weishaupt, these boilers achieve remarkable efficiency, energy conservation, and eco-friendly performance. Enhanced with either pressure or normal pressure economizers and condensers, our boilers lower exhaust temperatures while significantly diminishing dust, nitrogen oxide, and sulfur oxide emissions in flue gases, setting new standards in energy efficiency and environmental sustainability. Jiangsu Weifu Boiler proudly stands as a leading national supplier of small and medium-sized oil, gas, and electric boilers across China. Our esteemed clientele spans across large and medium-sized cities throughout mainland China, benefiting from our excellence and commitment. Jiangsu Weifu is a pivotal contributor to the environmental protection and energy conservation efforts in mainland China, championing sustainability and innovation.
Certifications
The company proudly holds a prestigious national Class B manufacturing certificate, a testament to our commitment to excellence and safety in the boiler industry. In a competitive market where opportunities and challenges coexist, Weifu Boiler thrives by upholding our guiding principles: 'creativity for development, credit for cooperation, quality for market share.' These values drive our innovation and ensure our customers receive the highest quality products and services. We are excited to share the exceptional value and innovative solutions of Weifu Boiler with you, our esteemed partners and clients. Join us on our journey to excellence in the boiler industry.
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