Reliable Hot Water Boilers - 30 Days Delivery, Wooden Packaging Included

• 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 ingenious design and unique structure, this vacuum boiler boasts dual hot water outputs. It can simultaneously offer dual hot water flows with distinct temperature variations, leveraging either a dual-circuit system or a single-circuit system that operates independently, catering to various needs.
High thermal efficiency: Within a hermetically sealed vacuum chamber, the heat exchange process circulates efficiently. Crafted from premium imported stainless steel, the heat exchanger delivers exceptional heat transfer efficiency. This results in outstanding energy conservation and unparalleled heat exchange performance.
Absolute safety: Operating in a perpetual state of negative pressure, this boiler eliminates explosion risks. Equipped with temperature sensors, safety valves, overheat protection, and vacuum control switches, it boasts a comprehensive suite of protective measures that meticulously address all potential safety concerns.

Intelligent control: Featuring digital controls and an LCD screen with a Chinese interface, the advanced control system allows for fully customizable temperature settings. Real-time display of furnace temperature, vacuum levels, and more, while automatically logging combustion times and operational faults, simplifies operations to the point of requiring no manual intervention.
Eliminate the trouble of registration procedures: Pre-assembled and operating under negative pressure, this boiler negates any risk of expansion or explosion, exempting it from regulatory oversight. This simplifies installation, allowing you to bypass the cumbersome registration processes with various departments, effectively minimizing associated costs.

Energy saving: The system uses minimal heat medium water, performing efficient heat exchange via negative pressure steam within the vacuum chamber. It quickly generates warm water at the desired temperature within just ten minutes, minimizing preheating losses and maximizing energy savings for a substantial impact.
Long life: Constructed with stainless steel known for superior heat transfer and corrosion resistance, the heat exchanger ensures rapid heat conduction. Pipe ends with flanges simplify maintenance and replacement. The vacuum-sealed furnace body is immune to corrosion and scaling, while the tube bundles avoid direct contact with flame or flue gas, thereby significantly prolonging product lifespan.
Insulation structure: Employing a robust 100mm double-layer insulation structure, the boiler maintains an external touch temperature equal to ambient room temperature. This not only enhances safety levels but also remarkably boosts the overall thermal efficiency of the boiler.
Imported low-nitrogen burner: Designed for high-efficiency combustion, this burner operates with minimal noise and reduced exhaust emissions, fully complying with the stringent requirements of first-class national environmental standards.

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

In the 2024 edition, the rear flue design is represented by green, indicating no drawings for emissions under 120 mg.

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 Tieta Road, Guyang Town, Dantu District, in the vibrant city of Zhenjiang.With a steadfast commitment to excellence, the company harmonizes boiler marketing resources across mainland China. Through an extensive marketing network, Weifu delivers unparalleled concepts, superior quality, competitive pricing, and exceptional service in oil, gas, and electricity boilers right to our esteemed customers. Guided by the principle of 'being a real person and doing things honestly', Weifu is dedicated to crafting exquisite products that warm the world. We believe the market operation of Weifu boilers should create value for customers, foster growth for employees, yield benefits for shareholders, support the company's development, and contribute to the national economy through tax revenue.
Our workforce exceeds 200 dedicated professionals, including more than 40 skilled technicians with expertise in various fields. Spanning over 20,000 square meters, our state-of-the-art facilities are equipped with cutting-edge manufacturing and testing tools. We specialize in designing and producing a diverse range of boilers, including gas, oil, and electric hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers.
Adhering to the philosophy 'what customers need is what we make,' Weifu focuses on superior boiler production. Our portfolio boasts myriad options: vertical/horizontal gas (oil) steam boilers, pressure and normal-pressure hot water boilers in various configurations, electric heating steam boilers, and thermal oil boiler series, comprising seven series and nearly 300 specifications. Each of our products embraces clean combustion technology, setting a standard for sustainability. Our horizontal pressure boiler design features pioneering structures like corrugated and conical furnaces, threaded smoke pipes, and a wet-back three-pass system, ensuring optimal performance. Our boilers integrate imported burners from renowned brands such as Riello, Aucma, Black & Decker, and Weishaupt, enhancing efficiency, energy savings, and environmental protection. Fitted with either pressure or normal pressure economizers and condensers, our boilers significantly decrease exhaust temperatures and reduce flue gas pollutants, including dust, nitrogen, and sulfur oxides, making them highly energy-efficient and eco-friendly. Weifu Boiler stands as a prominent national supplier of small and medium-sized oil, gas, and electric boilers throughout China. Our esteemed clientele spans across large and medium-sized cities throughout mainland China. We are proud to contribute significantly to environmental protection and energy conservation initiatives across China.

Certifications

The company proudly holds a prestigious national Class B manufacturing certificate. In the dynamic boiler market, where opportunities and challenges intertwine, Weifu Boiler steadfastly adheres to the guiding principle of "creativity for development, credit for cooperation, quality for market share." This unwavering commitment ensures our continued prominence and excellence. Join us as we share the unparalleled value of Weifu Boiler with you, enriching your experience with our innovative solutions and dedicated service.

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