Eco-Friendly Hot Water Boiler Designed for Energy Savings

• Customization: Available
• Function: Water Boiler, Steam Boilers, Hot Water Boiler
• Fuel: Oil-Fired
• Model NO.: ZKW series
• Installation: Bulk Boiler
• Structure: Fire Tube
• Media: Hot Water
• Water Circulation: Forced Circulation
• Drum Placement: Horizontal Boiler
• Pressure: Pressure
• Manufacturing Level: B
• Burning Style: Chamber Combustion Boiler
• Usage: Industrial, Power Station
• Wooden Packaging: 1
• Delivery Time: 30 Days
• Free Samples: No
• Feature: Customized
• Transport Package: Wooden Packaging
• Specification: Customized
• Trademark: Weifu
• Origin: Jiangsu

Product Description

Product Description

One machine for multiple purposes: With its innovative design and structure, the vacuum boiler offers dual hot water outputs, providing water at different temperatures simultaneously. This flexibility is achieved through a dual-circuit or a single-circuit system, which can function independently.
High thermal efficiency: This boiler is designed with a highly efficient heat exchange process, circulating within a completely sealed vacuum chamber. Crafted from premium imported stainless steel known for its exceptional heat transfer capabilities, the heat exchanger delivers outstanding efficiency and remarkable energy savings.
Absolute safety: Operating under a constant negative pressure, the boiler eliminates the risk of explosion. It is fortified with temperature sensors, safety valves, overheat protection, and vacuum control switches, offering comprehensive multi-layer safety to address any potential hazards.

Intelligent control: Featuring advanced digital controls with an intuitive LCD interface displaying in Chinese, this system allows free temperature settings. Real-time displays of furnace temperature, vacuum levels, and more ensure seamless operation. Automatic recording of combustion time and faults means hassle-free, automated management.
Eliminate the trouble of registration procedures: Delivered fully assembled and operating under negative pressure, this boiler bypasses the risk of expansion or explosion. It sidesteps the need for extensive supervision and inspection, sparing you from the cumbersome registration processes and reducing associated costs.

Energy saving: Thanks to minimal heat medium water usage, efficient heat exchange occurs within the vacuum chamber with negative pressure steam. This system swiftly produces warm water at the desired temperature in under ten minutes, minimizing preheating losses and maximizing energy savings.
Long life: Constructed from superior stainless steel, the heat exchanger is renowned for rapid, efficient heat transfer and resistance to corrosion. The vacuum state of the furnace prevents corrosion and scale build-up, while flange connections facilitate maintenance, thereby extending the system's lifespan.
Insulation structure: Employing a robust 100mm dual-layer insulation, this design reduces the boiler's surface temperature to ambient levels, enhancing safety and significantly boosting thermal efficiency.
Imported low-nitrogen burner: Enjoy high-efficiency combustion with minimal noise and low emissions, fully compliant with the stringent standards of top-tier 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

For the 2024 version, the design accommodates rear flue specifications, with a green indication for compliance to 120 mg without necessitating 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 serene locale of Tieta Road, Guyang Town, Dantu District, Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. stands as a beacon of innovation and excellence.Jiangsu Weifu Special Equipment Co., Ltd. is passionately dedicated to harmonizing boiler marketing strategies across mainland China. Through a strategic and expansive marketing network, the company adeptly transmits the core values of Weifu's premier boilers-be it oil, gas, or electricity-emphasizing unmatched quality, competitive pricing, and unparalleled customer service. Guided by the noble ethos of 'honesty and integrity,' the company strives to craft exquisite products that bring warmth worldwide. As Weifu navigates the boiler market landscape, it ensures mutual prosperity: customers derive tangible value, employees achieve personal growth, shareholders realize financial gain, the company enjoys robust development, and the nation benefits from increased tax contributions.
Boasting a talented workforce of over 200 dedicated professionals, including more than 40 skilled technicians, the company is well-equipped to innovate and excel. Spanning an impressive 20,000 square meters, our state-of-the-art facility features cutting-edge manufacturing and testing equipment. We specialize in the meticulous design and production of diverse boiler types, including gas, oil, and electricity-powered hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers.
Embracing the philosophy of 'creating what the customers need,' the company focuses on developing seven distinctive series of boiler products, encompassing nearly 300 specifications. This includes a comprehensive range of vertical and horizontal gas (oil) steam boilers, pressure and normal pressure hot water boilers, electric heating steam and hot water boilers, and thermal oil boilers. All of our products are crafted with the latest clean combustion technology, ensuring efficiency and environmental sustainability. The horizontal pressure boiler designs incorporate advanced features such as corrugated and conical furnaces, threaded smoke pipes, and a wet-back three-pass system, representing the pinnacle of modern engineering. Our boilers are equipped with high-performance imported burners from renowned brands like Riello, Aucma, Black & Decker, and Weishaupt, resulting in exceptional efficiency, significant energy savings, and laudable environmental friendliness. We further enhance energy efficiency and environmental compatibility by integrating pressure or normal pressure economizers and condensers. These innovations lower exhaust temperatures and reduce dust, nitrogen oxides, and sulfur oxides in the flue gas. Weifu Boiler has proudly risen as a national leader in the supply of small and medium-sized oil, gas, and electric boilers across China. Our extensive client base spans the vast expanse of large and medium-sized cities throughout mainland China. Jiangsu Weifu Special Equipment Co., Ltd. plays a pivotal role in advancing environmental protection and promoting energy conservation across the nation.

Certifications

The company holds a prestigious National Class B Manufacturing Certificate. In the dynamic boiler market, where both opportunities and challenges abound, Weifu Boiler remains steadfast in its commitment to excellence. By embracing the principles of 'creativity for development, credit for cooperation, and quality for market share,' Weifu Boiler is not just navigating the market terrain-it's mastering it. Join us in experiencing and sharing the unparalleled value of Weifu Boiler, where innovation meets excellence, creating a future of endless possibilities.

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