Efficient 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 innovative design and structure, this vacuum boiler offers dual hot water outputs, allowing you to simultaneously access hot water at two varied temperatures. Whether using a dual-circuit system or independently functioning single-circuit systems, this versatile machine promises unmatched flexibility.
High thermal efficiency: Within a fully sealed vacuum chamber, heat exchange occurs with exceptional efficiency, thanks to its construction from premium imported stainless steel. This ensures superior heat transference, leading to outstanding energy savings and thermal performance.
Absolute safety: Operating under a consistent negative pressure, this boiler eliminates explosion risks. Equipped with comprehensive safety features like temperature sensors, safety valves, overheat protection, and vacuum control switches, it ensures complete peace of mind by addressing all potential safety concerns.

Intelligent control: Featuring state-of-the-art digital controls and an LCD screen with a Chinese language display, this advanced system allows for customizable temperature settings. Real-time monitoring of furnace temperature, vacuum level, and more is displayed on-screen, with automatic logging of operating times and errors, ensuring straightforward operation without manual oversight.
Eliminate the trouble of registration procedures: Preassembled and operating safely under negative pressure, this boiler bypasses the need for complex registration with oversight departments. It simplifies installation and reduces associated costs, thanks to its explosion-free design.

Energy saving: The minimal water used as the heat medium results in rapid heat exchange within the negative pressure vacuum chamber. This process efficiently produces hot water set to your desired temperature in mere minutes, maximizing the boiler's energy-saving capabilities.
Long life: Featuring stainless steel construction for optimal heat transfer and corrosion resistance, the heat exchanger ensures quick heat conduction. With flanged pipe connections for ease of maintenance and no direct contact between the heating tubes and flames, the design significantly prolongs the service life while preventing corrosion or scaling.
Insulation structure: Utilizing a robust 100mm double-layer insulation structure, this design minimizes external surface temperature to ambient levels. It not only enhances safety but also significantly boosts the boiler's thermal efficiency.
Imported low-nitrogen burner: Designed for high-efficiency combustion with minimal noise and emissions, this low-nitrogen burner meets stringent requirements of top-tier environmental standards across the nation.

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 version aligns with the updated flue standards, symbolized by a green mark for emissions at or below 120 mg, ensuring compliance without needing 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

Nestled in the heart of Zhenjiang City, Jiangsu Weifu Special Equipment Co., Ltd. graces Tieta Road in the vibrant Guyang Town, Dantu District. Our prestigious location is just the start of our story.At Jiangsu Weifu, we are passionately dedicated to harmonizing boiler marketing resources across mainland China. Our extensive marketing network acts as a conduit, elegantly transmitting the essence of Weifu's oil, gas, and electricity boilers to our valued customers - encompassing their inherent quality, competitive pricing, and unwavering service excellence. Guided by our noble philosophy of 'being a real person and doing things honestly', Jiangsu Weifu Special Equipment Co., Ltd. crafts exquisite products that bring warmth to the world. We advocate a balanced approach where customers find value, employees experience growth, shareholders see returns, our company thrives, and our nation benefits from tax revenue.
Our dynamic team exceeds 200 members, including over 40 specialized technicians, each bringing a wealth of expertise to our operations and innovations. Our expansive operation sprawls over 20,000 square meters, replete with state-of-the-art factory facilities and cutting-edge manufacturing and testing equipment. We specialize in the meticulous design and production of a diverse array of gas, oil, and electricity-based hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers.
Our business philosophy centers around the principle: 'what customers need is what we make'. Our primary focus on superior boiler products has led to the innovation of a comprehensive range of products, including vertical/horizontal gas (oil) steam boilers, vertical gas (oil) normal pressure/pressure hot water boilers, electric heating steam boilers, and gas (oil) thermal oil boilers. This encompasses 7 series with nearly 300 detailed specifications. Weifu's product line proudly incorporates clean combustion technology to ensure an eco-friendly footprint. Our horizontal pressure boiler body design is a marvel of sophisticated engineering, featuring enhancements such as corrugated and conical furnaces, threaded smoke pipes, and a wet back three-pass structure. Equipped with imported burners from industry leaders like Riello, Aucma, Black & Decker, and Weishaupt, our boilers achieve unparalleled efficiency, saving energy while championing environmental protection. To maximize energy efficiency and eco-friendliness, our boilers are equipped with both pressure and normal pressure economizers and condensers, effectively lowering exhaust temperatures and cutting down on dust, nitrogen oxides, and sulfur oxides emissions. As a testament to our expertise and innovation, Weifu Boiler proudly stands as a national leader in supplying small to medium-sized oil, gas, and electric boilers across China. Our clientele spans the vast expanses of mainland China, thriving in both bustling metropolises and burgeoning medium-sized cities. Jiangsu Weifu has made significant strides in enhancing environmental protection and championing energy conservation across the breadth of mainland China.

Certifications

The company holds a prestigious national Class B manufacturing certificate. As we navigate the dynamic and ever-evolving boiler market, rife with both opportunities and challenges, Weifu Boiler remains steadfast in our commitment to innovation and excellence. We believe in harnessing creativity as a catalyst for development, upholding integrity as the cornerstone of collaboration, and delivering unmatched quality to capture and expand market share. At Weifu Boiler, we are dedicated to sharing our exceptional value with you, offering unparalleled expertise, reliability, and innovative solutions that promise to elevate your experience and meet your every need.

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