Premium Low Nitrogen Condensing Hot Water Boilers with 30-Day Delivery

• 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: Revolutionary in design and function, our vacuum boiler boasts dual hot water outputs with unique temperature differentiations, thanks to its innovative dual-circuit or single-circuit systems. This versatile mechanism allows for simultaneous yet independent operation, offering unparalleled convenience.
High thermal efficiency: Inside a perfectly sealed vacuum chamber, the heat exchanger circulates heat with unrivaled efficiency. Crafted from imported stainless steel, this marvel ensures optimal heat transfer, leading to substantial energy savings without compromising performance.
Absolute safety: Operating under a continuous negative pressure, our boiler eliminates explosion risks, fortified with temperature sensors, safety valves, overheat protection, and vacuum control switches. This multi-layer safety system meticulously safeguards against potential hazards, offering peace of mind.

Intelligent control: Featuring a sophisticated digital control system, the LCD screen displays real-time parameters with ease. Chinese display and advanced technology allow for adjustable temperature settings, automated fault recording, and simplified operation, enabling seamless hands-free management.
Eliminate the trouble of registration procedures: Shipped as a complete unit and operating under negative pressure, our boiler foregoes the risk of expansion or explosion. It is free from supervision and inspection, thus eliminating cumbersome registration procedures and minimizing installation costs.

Energy saving: Harnessing the efficiency of minimal heat medium water, our boiler swiftly produces warm water at the desired temperature within mere minutes. The vacuum chamber with negative pressure steam ensures remarkable energy savings by eliminating preheating losses.
Long life: Engineered with premium stainless steel, the heat exchanger excels in heat transfer and resists corrosion. Flanged pipe ends facilitate effortless maintenance and replacement. The vacuum environment prevents corrosion or scaling, significantly extending the lifespan of components.
Insulation structure: Our 100mm double-layer insulation structure expertly reduces external boiler temperature to match room conditions. This enhancement not only bolsters user safety but also dramatically increases thermal efficiency, making it a prudent choice for any facility.
Imported low-nitrogen burner: Experience quiet, efficient combustion with our low-nitrogen burner. Its exceptional design minimizes noise and reduces emissions, aligning perfectly with stringent national standards for eco-friendly operation.

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 version, the rear flue statistics indicate compliance with green standards, with emissions kept below 120 mg, ensuring no drawings are required, showcasing our commitment to sustainability.

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 at the strategic location of Tieta Road, Guyang Town, within the vibrant Dantu District of Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. stands as a beacon of industrial excellence.Jiangsu Weifu is passionately dedicated to harmonizing boiler marketing resources across the vast landscape of mainland China. Through our expansive and efficient marketing network, we not only deliver but also embody the essence of Weifu-showcasing our impeccable quality, fair pricing, and unparalleled service in oil, gas, and electricity boilers. Upholding the philosophy of 'integrity in character and diligence in deeds,' Jiangsu Weifu crafts exquisite products to warm the globe. We believe in a holistic market approach where every stakeholder reaps rewards: customers receive unmatched value, employees enjoy continuous development, shareholders realize profits, our company experiences growth, and our beloved nation gains valuable tax revenues.
Boasting a dynamic team of over 200 dedicated professionals, Jiangsu Weifu is strengthened by the expertise of more than 40 accomplished specialists across various technical fields. Sprawled across over 20,000 square meters of cutting-edge facilities, Jiangsu Weifu prides itself on avant-garde manufacturing and testing equipment. We excel in the meticulous design and production of a diverse range of boilers including gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers.
Guided by the customer-centric philosophy 'what customers need is what we make,' Jiangsu Weifu's extensive lineup features vertical and horizontal gas (oil) steam boilers, pressure and non-pressure hot water boilers, and electric heating steam boilers among others, encompassing 7 distinctive series and nearly 300 detailed specifications. Our entire product range is a testament to our commitment to clean combustion technology, ensuring sustainability at every step. The horizontal pressure boiler design is an epitome of engineering prowess, incorporating state-of-the-art structures like corrugated furnaces, conical furnaces, threaded smoke pipes, and the innovative wet back three-pass system. Equipped with renowned imported burners such as Riello, Aucma, Black & Decker, and Weishaupt, our boilers deliver unbeatable efficiency, conserve energy, and champion environmental protection. Our boilers are meticulously engineered with pressure or normal pressure economizers and condensers. These components are pivotal in lowering exhaust temperatures and minimizing flue gas pollutants like dust, nitrogen oxides, and sulfur oxides, enhancing both energy efficiency and eco-friendliness. Positioned as a national leader, Weifu Boiler is the go-to supplier for small and medium-sized oil (gas, electric) boilers across China. Our esteemed clientele spans across all major and mid-sized cities throughout mainland China, reinforcing our expansive reach and trusted reputation. Jiangsu Weifu is not just a manufacturer; we are proud contributors to environmental protection and energy conservation initiatives throughout mainland China, marking a positive impact for a sustainable future.

Certifications

The company holds a prestigious national Class B manufacturing certificate, positioning itself effectively in a dynamic boiler market teeming with opportunities and challenges. At the heart of Weifu Boiler's ambitious strategy is a steadfast commitment to 'creativity for development, integrity for collaboration, and excellence for market supremacy.' We warmly invite you to experience and share in the remarkable value proposition that Weifu Boiler offers, fostering a partnership built on shared success.

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