Three Pass Vacuum Furnace with Enhanced Energy Saving Features

• 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
• Package Size: 700.00cm * 800.00cm * 1350.00cm
• Package Gross Weight: 220.000kg

Product Description

Product Description

One machine for multiple purposes: Ingeniously engineered with a unique design, the vacuum boiler offers dual hot water outputs that deliver varying temperature levels concurrently. Utilizing either a dual-circuit or single-circuit system, the machine ensures independent operation for maximum flexibility and efficiency.
High thermal efficiency: In a perfectly sealed vacuum chamber, the heat exchange circulates repeatedly, crafted from premium imported stainless steel materials renowned for exceptional heat transfer efficiency. The heat exchanger embodies unparalleled heat exchange efficiency, delivering a profound energy-saving impact.
Absolute safety: Operating consistently under negative pressure, the boiler eliminates explosion risks. A suite of safety enhancements, including temperature sensors, safety valves, overheat protection, and vacuum control switches, ensures comprehensive safeguarding against potential hazards.

Intelligent control: Boasting a digital control system with an intuitive LCD screen displaying in Chinese, the control system is remarkably sophisticated. It allows complete freedom in temperature settings, with real-time displays of furnace temperature, vacuum degree, and other parameters. The system records combustion times and faults automatically, facilitating effortless, operator-free functionality.
Eliminate the trouble of registration procedures: Pre-assembled to perfection, the boiler's negative pressure operation ensures zero expansion or explosion risks, exempting it from regulatory supervision and inspection. This innovative feature significantly reduces installation costs by bypassing cumbersome registration procedures, optimizing your investment.

Energy saving: Minimal heat medium water usage allows for highly efficient heat exchange within the vacuum chamber using negative pressure steam, achieving desired water warmth in just ten minutes with no preheating loss. The energy conservation results are remarkably substantial.
Long life: Constructed with stainless steel offering superior heat transfer and corrosion resistance, the heat exchanger promises rapid heat transfer. Pipelines are flange-connected for hassle-free maintenance. The vacuum state of the furnace prevents corrosion and scaling, while the heated tube bundle's non-contact with flames or flue gas appreciably lengthens the service life.
Insulation structure: Adopting a 100mm double-layer insulation structure, the boiler maintains its external surface at room temperature, ensuring enhanced safety and significantly boosting thermal efficiency.
Imported low-nitrogen burner: Engineered for high-efficiency combustion with quiet operation and minimal exhaust emissions, this burner meets stringent first-class area standards, ensuring compliance with national environmental requirements.

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 edition, in accordance with the rear flue, signifies compliance with green standards by eliminating the need for drawings, adhering to a 120 mg emission guideline.

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 strategically located on Tieta Road in the thriving Guyang Town, nestled within the Dantu District of Zhenjiang City. Enveloped in an environment conducive to innovation and excellence, the company is perfectly positioned to cater to a diverse clientele.Dedicated to seamlessly integrating boiler marketing resources across mainland China, Jiangsu Weifu Special Equipment Co., Ltd. leverages an extensive marketing network to deliver the distinguished Weifu brand, renowned for its oil, gas, and electricity boilers, directly to its valued customers. We ensure that every interaction conveys our unwavering commitment to quality, competitive pricing, and exceptional service. Embracing a philosophy of integrity and authenticity, Jiangsu Weifu Special Equipment Co., Ltd. is devoted to crafting superior products that warm the world. Our guiding principle is that through Weifu's boiler market endeavors, customers experience genuine value, employees achieve continuous growth, shareholders reap substantial benefits, our company thrives, and our nation gains crucial tax revenue.
With a robust team of over 200 dedicated employees, including more than 40 skilled professional technicians, Jiangsu Weifu Special Equipment Co., Ltd. stands as a powerhouse of expertise and innovation in the boiler industry. Spanning over 20,000 square meters, our state-of-the-art facility is equipped with cutting-edge manufacturing and testing equipment. Specializing in the design and production of a comprehensive range of boilers, including gas (oil, electricity) hot water boilers, steam boilers, and organic carrier boilers, we engineer solutions that epitomize excellence and reliability.
Upholding the business ethos of "what customers need is what we make," Jiangsu Weifu Special Equipment Co., Ltd. focuses on delivering a diverse array of boiler solutions. Our portfolio features vertical and horizontal gas (oil) steam boilers, normal pressure and pressure hot water boilers, electric heating steam and hot water boilers, and versatile thermal oil boiler series, encompassing 7 series with nearly 300 distinct specifications. All Weifu products are engineered with cutting-edge clean combustion technology, setting a benchmark for innovation and sustainability. The horizontal pressure boiler design incorporates advanced engineering principles, including corrugated and conical furnaces, threaded smoke pipes, and a robust wet-back three-pass layout, ensuring unparalleled efficiency and durability. Equipped with premium imported burners from industry leaders like Riello, Aucma, Black & Decker, and Weishaupt, our boilers provide exceptional efficiency, energy conservation, and environmental protection, positioning them as leaders in modern boiler technology. To optimize energy savings and environmental impact, our boilers come with pressure or normal pressure economizers and condensers, reducing exhaust temperatures and lowering dust, nitrogen, and sulfur oxide emissions. This robust design significantly enhances energy efficiency and sustainability. Weifu Boiler has proudly established itself as a premier national supplier of small to medium-sized oil, gas, and electric boilers across China, recognized for quality and reliability. Our extensive client base spans major cities throughout mainland China, attesting to our widespread appeal and trusted reputation. Through our innovative solutions, Jiangsu Weifu Special Equipment Co., Ltd. has significantly contributed to environmental protection and energy conservation initiatives in mainland China, championing a greener future.

Certifications

The company holds a prestigious national Class B manufacturing certificate. In the dynamic and competitive boiler market, where both opportunities and challenges are ever-present, Weifu Boiler remains steadfast in its commitment to 'creativity for development, credit for cooperation, and quality for market share.' This principle underlines our dedication to innovation, trustworthy partnerships, and superior quality that secures our place in the industry. We are excited to invite you to experience the exceptional value of Weifu Boiler. Join us in our journey towards excellence, where your trust meets our unwavering commitment to quality 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