High-Performance Hot Air Boiler for Efficient Heating Operations

• 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: Featuring an innovative design and structure, our vacuum boiler is exceptionally versatile. It boasts dual hot water outputs, providing water with different temperature variances simultaneously. Employing a flexible dual-circuit or single-circuit system, it allows for independent operation of each system, catering to diverse needs.
High thermal efficiency: Our cutting-edge heat exchange system operates within a completely sealed vacuum chamber, ensuring maximum efficiency. Crafted from premium imported stainless steel, renowned for its superior heat transfer capabilities, our heat exchanger not only delivers exceptional energy savings but also achieves impressive heat exchange efficiency.
Absolute safety: Operating perpetually in a negative pressure state, our boiler guarantees unrivaled safety with no risk of explosion. Equipped with advanced safety features such as temperature sensors, safety valves, overheat protection, and vacuum control switches, it provides comprehensive protection, addressing all potential safety hazards.

Intelligent control: With state-of-the-art digital controls, a user-friendly LCD screen, and a Chinese-language display, our system offers unsurpassed convenience. Freely set temperatures, monitor furnace temperature, vacuum degree, and other parameters in real-time. Automated recording of combustion times and operating faults ensures effortless operation, enabling hands-free functionality.
Eliminate the trouble of registration procedures: Our pre-assembled boiler operates under negative pressure, eliminating any risk of expansion or explosion. It's exempt from supervisory inspection, sparing you the hassle of cumbersome registration processes. This streamlined installation process significantly cuts costs, enhancing your operational efficiency.

Energy saving: Optimized for outstanding energy efficiency, our boiler uses minimal heat medium water. Conducting heat exchange within a vacuum chamber, it delivers warm water at desired temperatures swiftly, within ten minutes, without preheating losses. Its significant energy-saving capability ensures cost-effective operations.
Long life: Constructed from premium stainless steel, our heat exchanger offers optimal heat transfer and exceptional corrosion resistance. Flange connections at pipe ends simplify maintenance and replacement. The vacuum-sealed furnace body resists corrosion and scaling, while the heated tube bundle avoids contact with flames or flue gas, thus greatly extending the boiler's service life.
Insulation structure: Utilizing a 100mm double-layer insulation structure, our boiler maintains a safe touch temperature akin to room temperature. This design not only enhances safety but also significantly boosts the boiler's thermal efficiency, delivering superior performance.
Imported low-nitrogen burner: Experience high-efficiency combustion with our imported low-nitrogen burner. It operates with minimal noise and low exhaust emissions, adhering to the stringent environmental standards of first-class areas nationwide.

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 model, adhering to rear flue specifications, requires no blueprints for emissions below 120 mg, showcasing our commitment to eco-friendly innovation.

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. is nestled on the prestigious Tieta Road, located in the vibrant Guyang Town of Dantu District in Zhenjiang City.Our esteemed company is devoted to the seamless integration of boiler marketing resources across mainland China. Through our expansive marketing network, we deliver Weifu's distinguished concepts, superior quality, competitive pricing, and unparalleled service directly to our valued customers, specializing in oil, gas, and electricity boilers. Guided by our core philosophy of 'being a real person and doing things honestly', we focus on crafting exquisite products and spreading warmth across the globe. Weifu prides itself on operating a market that ensures customers derive value, employees experience growth, shareholders reap rewards, companies achieve development, and the nation gains tax revenues.
Our dynamic team consists of over 200 dedicated employees, with a talented group of more than 40 professionals specializing in various technical fields. Spanning over 20,000 square meters, our state-of-the-art manufacturing facilities boast modern factory buildings and cutting-edge equipment, dedicated to the innovative design and manufacture of premium gas (oil, electricity) hot water boilers, gas (oil, electricity) steam boilers, gas (oil, electricity) vacuum hot water boilers, and gas (oil, electricity) organic carrier boilers.
At the heart of our business philosophy lies the belief that 'what customers need is what we make.' We focus primarily on boiler products, crafting a diverse portfolio that 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 boiler series-spanning 7 series and nearly 300 unique specifications. Our entire line of products is designed with the pioneering clean combustion technology, ensuring environmental responsibility. The design of our horizontal pressure boiler body incorporates advanced structures like corrugated and conical furnaces, threaded smoke pipes, and the innovative wet back three-pass system. We equip our boiler main engines with top-tier imported burners from renowned brands like Riello, Aucma, Black & Decker, and Weishaupt, achieving unparalleled efficiency, energy savings, and environmental protection. Our boilers come equipped with pressure or normal pressure economizers and condensers, effectively lowering exhaust temperatures and significantly reducing the concentration of dust, nitrogen oxides, and sulfur oxides in flue gases-making our boilers exceptionally energy-efficient and environmentally friendly. Weifu Boiler has proudly emerged as a leading national supplier of small to medium-sized oil (gas, electric) boilers across China. Our esteemed clientele spans across major and medium-sized cities throughout mainland China. Our commitment to innovation and responsibility has significantly contributed to the causes of environmental protection and energy conservation throughout mainland China.

Certifications

Jiangsu Weifu Special Equipment Co., Ltd. proudly holds a prestigious national Class B manufacturing certificate. In a dynamic boiler market, where opportunities and challenges are constantly intertwined, Weifu Boiler remains steadfast in its commitment to excellence. Embracing the principle of 'creativity for development, credit for cooperation, quality for market share,' we diligently strive to pioneer innovation, foster trustworthy collaborations, and ensure unparalleled quality, all to capture and expand our market presence. Join us as we unveil and share the exceptional value that Weifu Boiler represents. Experience firsthand the remarkable offerings and benefits that align with our vision of excellence and innovation.

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