High Thermal Efficiency Steam Boilers for Industrial Applications

• 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: Thanks to its innovative design and structure, our vacuum boiler stands out by delivering dual hot water outputs. Whether you need hot water with varying temperature differences or a consistent supply, the flexibility of a dual or single-circuit system ensures seamless, independent operation.
High thermal efficiency: Excellence in heat exchange is achieved through a fully enclosed vacuum chamber, ensuring continuous thermal circulation. Crafted with premium imported stainless steel, our heat exchanger boasts remarkable heat transfer efficiency, resulting in notable energy savings and superior performance.
Absolute safety: Operating under a consistent negative pressure, our boiler guarantees explosion-free safety. Equipped with state-of-the-art temperature sensors, safety valves, overheat protection, and vacuum control switches, the multi-layered protection systems meticulously address all potential safety concerns.

Intelligent control: Experience cutting-edge digital control with our intuitive LCD screen displaying in Chinese. Freely set the desired temperature while easily monitoring furnace conditions and vacuum levels in real-time. With automatic recording of combustion times and operational faults, the streamlined system requires minimal human intervention.
Eliminate the trouble of registration procedures: Our boiler's comprehensive negative pressure operation negates risks of expansion or explosion, hence exempting it from supervisory scrutiny. This unique advantage simplifies the installation process, liberating you from tedious registration procedures and substantially reducing associated costs.

Energy saving: With minimal heat medium water, our vacuum chamber system efficiently utilizes negative pressure steam for rapid heat exchange. Achieve your desired water temperature swiftly in just ten minutes, all without preheating loss, ensuring a significantly enhanced energy-saving performance.
Long life: Constructed with top-tier stainless steel, our heat exchanger excels in both rapid heat transfer and outstanding corrosion resistance. Flanged pipe connections ensure effortless maintenance. The vacuum-sealed furnace body, immune to corrosion and scaling, prolongs the lifespan while protecting the heated tube bundle from direct flame exposure.
Insulation structure: Our advanced 100mm double-layer insulation structure keeps the boiler's exterior at room temperature, enhancing safety and significantly boosting thermal efficiency. This innovative feature ensures both user protection and optimal performance.
Imported low-nitrogen burner: Enjoy high-efficiency combustion with our imported burners, designed for low noise and minimal exhaust emissions. Our product is fully compliant with stringent standards in first-class national areas, reflecting our commitment to environmental responsibility.

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 edition, our boilers meet the highest environmental standards by maintaining flue emissions within 120 mg, highlighted in green to represent compliance without 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

Situated at the heart of Guyang Town along Tieta Road in Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. stands as a beacon of innovation and excellence.Jiangsu Weifu is passionately dedicated to uniting boiler marketing resources across mainland China. Through an extensive and robust marketing network, we convey the essence of Weifu's boilers, highlighting their superior quality, competitive pricing, and exemplary service, all tailored to meet the diverse needs of our valued customers. Embracing the philosophy of 'being a real person and doing things honestly,' Jiangsu Weifu is resolute in crafting premium products that warm the world. Our mission is to ensure that in the dynamic landscape of the Weifu boiler market, customers reap substantial value, employees experience growth, shareholders enjoy attractive returns, our company achieves sustainable development, and the nation gains vital tax revenues.
Jiangsu Weifu proudly employs a skilled workforce of over 200 dedicated professionals, including more than 40 expert technicians across various disciplines. Spanning over 20,000 square meters, our state-of-the-art facilities boast advanced manufacturing and testing equipment. We specialize in the innovative design and production of an array of gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers, each crafted to meet the highest industry standards.
Guided by the philosophy 'what customers need is what we make,' we focus on delivering exceptional boiler solutions. Our portfolio includes an impressive range of products such as vertical/horizontal gas (oil) steam boilers, pressure/normal pressure hot water boilers, electric heating steam and hot water boilers, and thermal oil boiler series, encompassing 7 comprehensive series with nearly 300 distinct specifications, ensuring a perfect match for every customer requirement. Our entire product line is designed with cutting-edge clean combustion technology, ensuring minimal environmental impact. The innovative design of our horizontal pressure boilers incorporates advanced features like corrugated furnaces, conical furnaces, threaded smoke pipes, and wet back three-pass configurations, setting a new standard in boiler efficiency and performance. Our boilers are equipped with premium imported burners from renowned brands such as Riello, Aucma, Black & Decker, and Weishaupt. This integration ensures that our boilers deliver unparalleled efficiency, energy conservation, and eco-friendly operation. Enhanced with both pressure and normal pressure economizers and condensers, our boilers are engineered to minimize exhaust temperatures and significantly reduce dust, nitrogen oxide, and sulfur oxide emissions, making them exceptionally energy-efficient and environmentally conscious. Weifu Boiler has earned its esteemed reputation as a leading national supplier of small and medium-sized oil (gas, electric) boilers throughout China. Our esteemed clientele spans large and medium-sized cities across mainland China, reflecting the widespread trust and confidence in our products. We are proud to contribute meaningfully to environmental protection and energy conservation efforts across mainland China, reinforcing our commitment to sustainable practices.

Certifications

The company proudly holds a prestigious national Class B manufacturing certificate. In a dynamic boiler market where opportunities and challenges thrive side by side, Weifu Boiler commits unwaveringly to its core principles: fostering innovation for development, cultivating trust for cooperative relationships, and ensuring superior quality to capture market share. We invite you to partake in the exceptional value and benefits that Weifu Boiler offers, ensuring a transformative and rewarding experience.

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