Low Nitrogen Condensing Hot Water Boilers with Wooden Packaging Options

• 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 sophisticated structure, our vacuum boiler boasts dual hot water outputs, offering the flexibility to provide water at varied temperature levels simultaneously. The dual-circuit system or single-circuit system operates independently, ensuring seamless functionality tailored to your needs.
High thermal efficiency: In our state-of-the-art boiler, the heat exchange circulates in a fully sealed vacuum chamber. Crafted from premium imported stainless steel with exceptional heat transfer properties, this heat exchanger ensures superior efficiency in heat exchange, culminating in substantial energy savings that benefit both your operations and the environment.
Absolute safety: Operating under constant negative pressure, our boiler eliminates explosion risks. It features an array of safety measures including temperature sensors, safety valves, overheat protection, and vacuum control switches. These multi-layered protections comprehensively address any potential safety concerns, ensuring peace of mind during operation.

Intelligent control: Featuring an advanced digital control system with an LCD screen and Chinese display, our boiler offers unparalleled ease of use. Freely set the temperature, view real-time data on furnace temperature and vacuum degree, and access automatic records of combustion times and operating faults. Enjoy the convenience of hands-free operation.
Eliminate the hassle of registration procedures: Shipped in a complete state and operating under negative pressure, our boiler poses no expansion or explosion risks, thus exempting you from the tedious registration procedures required by functional departments. This streamlined process not only simplifies installation but also minimizes your operational costs.

Energy saving: Thanks to the minimal amount of heat medium water, our boiler efficiently conducts heat exchange within the negative pressure-steam vacuum chamber, delivering water at the desired temperature in under ten minutes. This efficiency eliminates preheating losses and underscores the boiler's remarkable energy-saving capabilities.
Long life: Crafted from stainless steel known for optimal heat transfer and corrosion resistance, our heat exchanger offers expedited heat transfer. Flanged pipe connections facilitate easy maintenance. With a vacuum-sealed furnace body preventing corrosion and scaling, the heat tube bundle's longevity is significantly extended, avoiding contact with flames or flue gases.
Insulation structure: The boiler's 100mm double-layer insulation structure is expertly engineered to maintain an external touch temperature equivalent to room temperature. This design not only augments safety but also substantially enhances the boiler's thermal efficiency, ensuring comfort and performance in equal measure.
Imported low-nitrogen burner: Experience high-efficiency combustion with our imported low-nitrogen burner, which operates with low noise and minimal exhaust emissions. It meets the stringent requirements of first-class areas, aligning with sustainability standards and helping to preserve the environment.

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

Explore the 2024 version, featuring rear flue designs. The green indicators signify compliance with 120 mg standards without necessitating additional drawings, streamlining your environmental compliance processes.

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 resides at the strategic location of Tieta Road, Guyang Town, Dantu District, Zhenjiang City.At Jiangsu Weifu Special Equipment Co., Ltd., we are devoted to integrating comprehensive boiler marketing resources across mainland China. Through our robust marketing network, we seamlessly communicate the distinct concept, exceptional quality, competitive pricing, and superior service of Weifu's oil, gas, and electricity boilers to our valued clientele. Guided by the philosophy of 'being a real person and doing things honestly,' we excel in crafting exquisite products that warm hearts worldwide. Through Weifu boiler market operations, we ensure customers receive unparalleled value, employees achieve growth, shareholders gain returns, the company attains development, and the nation benefits from tax revenues.
Our company boasts an impressive team of over 200 dedicated employees, including more than 40 skilled professional technicians across various specialties. Spanning over 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 production of high-performance gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers.
Embracing the business mantra of 'what customers need is what we make,' we focus on offering premium boiler products. We have meticulously developed a remarkable array of vertical and horizontal gas (oil) steam boilers, normal and pressure hot water boilers, electric heating steam and hot water boilers, and gas (oil) thermal oil boiler series, spanning an impressive 7 series with nearly 300 specifications. Our entire product line is engineered with cutting-edge clean combustion technology. Our horizontal pressure boiler designs incorporate pioneering structures such as corrugated furnaces, conical furnaces, threaded smoke pipes, and the innovative wet back three-pass system. The heart of our boilers features imported burners from top-tier brands like Riello, Aucma, Black & Decker, and Weishaupt, ensuring unmatched efficiency, energy conservation, and environmental stewardship. Equipped with either pressure or normal pressure economizers and condensers, our boilers are engineered to further diminish exhaust temperatures. This innovation significantly cuts down dust, nitrogen oxides, and sulfur oxides emissions, enhancing the energy efficiency and environmental friendliness of our solutions. Weifu Boiler proudly stands as a premier national supplier of small and medium-sized oil, gas, and electric boilers across China. Our esteemed clientele is spread throughout the bustling large and medium-sized cities in mainland China. Our commitment has significantly advanced environmental protection and energy conservation efforts across mainland China.

Certifications

Jiangsu Weifu Special Equipment Co., Ltd. proudly holds a prestigious national Class B manufacturing certificate. In the dynamic and ever-evolving boiler market, where opportunities and challenges intersect, Weifu Boiler stands firm on its core principles: innovation as the engine for our growth, trust as the foundation of our collaborations, and uncompromising quality as the cornerstone for capturing market share. These values guide us as we navigate the competitive landscape. We cordially invite you to partake in the shared value of Weifu Boiler, where excellence meets reliability, and innovation paves the path to a prosperous future.

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