Three Pass Boiler with Superior Performance for Hot Air Generation

• 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: Discover the versatility of a truly multifunctional marvel designed to meet your diverse heating needs with seamless adaptability. Due to the special design and structure, the vacuum boiler features dual hot water outputs, capable of delivering hot water with varied temperatures simultaneously. Whether you choose the dual-circuit system or prefer the independence of a single-circuit system, flexibility is at your fingertips.
High thermal efficiency: Revel in the supreme thermal efficiency that sets new industry standards, ensuring that every ounce of energy is harnessed to its fullest potential. The heat exchange process, ingeniously conducted in a fully enclosed vacuum chamber, utilizes premium imported stainless steel to deliver exceptional heat transfer efficiency. Enjoy significant energy savings and unmatched performance.
Absolute safety: Our commitment to safety is paramount. The boiler operates under negative pressure, eliminating explosion risks. Equipped with state-of-the-art temperature sensors, safety valves, and overheat protection, we've anticipated every safety concern to provide peace of mind. The boiler is constantly maintained in a negative pressure environment, nullifying explosion risks. Multi-layer protection measures, including temperature sensors, safety valves, and vacuum control switches, ensure comprehensive safety oversight.

Intelligent control: Harness the power of advanced technology with our intelligent control system, featuring digital control, an intuitive LCD display, and real-time monitoring for a truly effortless user experience. Advanced digital control with an LCD screen and Chinese display offers unprecedented ease of use. Set temperatures freely while monitoring the furnace temperature and vacuum degree in real-time. Automatic recording of combustion time and operational faults ensures seamless operation without human intervention.
Eliminate the trouble of registration procedures: Simplify your installation process by bypassing cumbersome registration procedures, thanks to our boiler's self-contained operation under negative pressure. Our boiler's design negates the need for complex registration processes due to its safe, negative pressure operation. Free from the risks of expansion or explosion, it minimizes supervision requirements, streamlining installation and reducing costs significantly.

Energy saving: Benefit from remarkable energy efficiency with minimal heat medium water usage, swiftly producing warm water at your desired temperature within minutes, eliminating preheating losses. The minimized use of heat medium water in our vacuum chamber with negative pressure steam ensures rapid, efficient heat exchange. Enjoy warm water at set temperatures within ten minutes, with no preheating loss, achieving substantial energy savings.
Long life: Constructed with premium stainless steel, our heat exchanger boasts exceptional heat transfer and corrosion resistance, ensuring durability and prolonged service life. Crafted from stainless steel for superior heat transfer and corrosion resistance, our heat exchanger is built for longevity. Easy maintenance is guaranteed with flange connections, while the vacuum state furnace body prevents corrosion and scale, extending the service life significantly.
Insulation structure: Our state-of-the-art 100mm double-layer insulation structure diminishes external boiler touch temperature to ambient levels, enhancing safety and optimizing thermal efficiency. Featuring a 100mm double-layer insulation structure, our boiler ensures the exterior remains at room temperature. This not only boosts safety but also maximizes thermal efficiency dramatically.
Imported low-nitrogen burner: Achieve top-tier combustion efficiency with our low-nitrogen burner, designed for minimal noise and emissions, meeting the highest national standards. Our imported low-nitrogen burner delivers high-efficiency combustion with reduced noise and emissions, aligning perfectly with stringent national standards for first-class areas.

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: Stay ahead with our insightful statistics, meticulously compiled to guide your strategic decisions for the year 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

2024 version according to the rear flue, green means no drawings according to 120 mg: Our 2024 version embraces a new standard, with environmentally conscious designs assessed by flue specifications, ensuring compliance with green regulations.

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 vibrant heart of Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. is strategically positioned at Tieta Road, Guyang Town, Dantu District, where tradition meets modernity.With a dedicated focus on unifying boiler marketing initiatives across mainland China, the company masterfully transmits the ethos, exceptional quality, competitive pricing, and unparalleled service of Weifu's diverse range of boilers-be it oil, gas, or electric-to its discerning clientele. Guided by the ethos of integrity and craftsmanship, the company aims to create exemplary products that 'warm the world.' Weifu champions a holistic market approach where customers derive true value, employees witness personal growth, shareholders enjoy profits, the company experiences sustainable development, and national prosperity is bolstered through tax contributions.
Boasting a robust team of over 200 dedicated professionals, including an elite cadre of 40+ skilled technicians, the company stands as a beacon of expertise and innovation. Spread across an impressive expanse of over 20,000 square meters, our state-of-the-art facilities house cutting-edge manufacturing and testing equipment. We specialize in crafting a diverse array of boilers, including gas, oil, and electric hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers, each a testament to our engineering prowess.
Adhering to the principle that 'customer needs drive our creations,' we focus on boiler solutions as our core offering. Our portfolio boasts 7 distinguished series with nearly 300 unique specifications, encompassing vertical and horizontal gas (oil) steam boilers, normal and pressurized hot water boilers, electric heating solutions, and thermal oil boiler series. Our entire product lineup proudly incorporates advanced clean combustion technology, setting new standards for environmentally conscious operations. The innovative horizontal pressure boiler design integrates sophisticated features such as corrugated and conical furnaces, threaded smoke pipes, and a wet back three-pass structure, ensuring unparalleled performance. At the heart of our boilers, you'll find internationally renowned burners from Riello, Aucma, Black & Decker, and Weishaupt, delivering unmatched efficiency, energy conservation, and eco-friendliness. Our boilers come equipped with state-of-the-art pressure or normal pressure economizers and condensers, which significantly lower exhaust temperatures and reduce dust, nitrogen oxides, and sulfur oxides emissions, enhancing our commitment to energy efficiency and environmental stewardship. As a prestigious national supplier, Weifu Boiler has carved a niche in the realm of small to medium-sized oil, gas, and electric boilers across China. Our esteemed clientele spans the bustling landscape of large and medium-sized cities throughout mainland China. We take pride in our pivotal role in advancing environmental protection and promoting energy conservation across the nation.

Certifications

Proudly holding a prestigious national Class B manufacturing certificate, Jiangsu Weifu Special Equipment Co., Ltd. stands at the forefront of the competitive boiler market. In this dynamic landscape, where opportunities and challenges intertwine, Weifu Boiler remains steadfast to its core principles: 'creativity for development, credit for cooperation, and quality for market share.' This unwavering commitment ensures we not only meet but exceed industry standards, setting a benchmark of excellence. We are delighted to share the remarkable value and excellence of Weifu Boiler with you. Through our innovative and superior products, experience firsthand the dedication and quality that defines our legacy.

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