High Thermal Efficiency Horizontal Boiler for Hot Water Heating Solutions

• 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: Designed with versatility in mind, our vacuum boiler expertly offers dual hot water outputs. It smoothly provides dual water temperatures simultaneously through its innovative dual-circuit or independently operating single-circuit system. This flexibility ensures your specific temperature needs are met seamlessly.
High thermal efficiency: Our heat exchange process operates with unparalleled efficiency, as it circulates through a completely sealed vacuum chamber. Constructed with premium imported stainless steel, the heat exchanger boasts extraordinary heat transfer capabilities, resulting in remarkable energy savings and thermal performance.
Absolute safety: Operating under constant negative pressure, this boiler guarantees absolute peace of mind with no explosion risk. Equipped with a suite of protective features including temperature sensors, safety valves, overheat protection, and vacuum control switches, it addresses every potential safety concern comprehensively.

Intelligent control: With cutting-edge digital control, an intuitive LCD screen, and user-friendly Chinese interface, the system offers unparalleled ease of use. Real-time display of temperature and vacuum parameters, alongside automatic logging of combustion and fault data, modernizes your boiler operation, allowing for truly automated, hands-free operation.
Eliminate the trouble of registration procedures: Thanks to its negative pressure design and explosion-proof operation, this boiler bypasses regulatory oversight. It ships fully assembled, liberating you from complex registration processes and reducing your operational costs significantly.

Energy saving: Efficient by design, the minimal heat medium water in our system carries out heat exchange with negative pressure steam in the vacuum chamber. This setup quickly delivers warm water to your set temperature in under ten minutes, minimizing preheating losses and enhancing energy efficiency.
Long life: Exhibiting exceptional heat transfer and corrosion resistance, the stainless steel heat exchanger is a marvel of durability. Connected by flanges for ease of maintenance, its vacuum-sealed design prevents corrosion and scaling, while its construction avoids flame contact, significantly prolonging the boiler's lifespan.
Insulation structure: Engineered with a 100mm dual-layer insulation, this structure not only maintains the boiler's surface at ambient temperature, enhancing safety, but also significantly boosts the thermal efficiency, making it a smart and safe choice.
Imported low-nitrogen burner: Our burner offers exceptional combustion efficiency with minimal noise and reduced exhaust emissions, meeting the stringent standards of first-class environmental zones 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 edition, accommodating rear flue designs, indicates compliance with green standards without the need for 120 mg 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

Jiangsu Weifu Special Equipment Co., Ltd. finds its prestigious location at Tieta Road, Guyang Town, Dantu District, Zhenjiang City.At the heart of Jiangsu Weifu Special Equipment Co., Ltd. lies a dedication to harmonizing boiler marketing resources across mainland China. Through an expansive and efficient marketing network, they deliver the essence of Weifu's superior oil, gas, and electricity boilers to their valued customers, underscoring unmatched quality, competitive pricing, and exceptional service. Firmly rooted in the philosophy of 'being a real person and doing things honestly,' the company is devoted to crafting exceptional products that warm the world. In their dynamic market operations, Weifu ensures that customers receive value, employees achieve growth, shareholders gain benefits, companies experience development, and the nation benefits from tax revenue.
Employing a dedicated team of over 200 individuals, Weifu's workforce includes more than 40 highly skilled professional technicians from various specializations. The company boasts a sprawling 20,000 square meters of state-of-the-art factory space, fitted with cutting-edge manufacturing and testing equipment. Specializing in the innovative design and production of gas (oil, electricity) hot water boilers, steam boilers, vacuum hot water boilers, and organic carrier boilers, Weifu stands at the forefront of the industry.
Guided by the customer-centric philosophy of 'what customers need is what we make,' Weifu has established its dominance in the boiler market with its diverse portfolio. This includes vertical/horizontal gas (oil) steam boilers, gas (oil) normal/pressure hot water boilers, electric heating steam/hot water boilers, and gas (oil) thermal oil boiler series. Offering an impressive 7 series with nearly 300 specifications, Weifu caters to a wide range of customer needs. All Weifu products proudly incorporate advanced clean combustion technology, ensuring efficiency and environmental responsibility. The horizontal pressure boiler features a sophisticated design comprising elements like a corrugated furnace, conical furnace, threaded smoke pipe, and a wet back three-pass system, all contributing to its advanced engineering. Fitted with imported burners from renowned brands such as Riello, Aucma, Black & Decker, and Weishaupt, the boiler achieves unparalleled high efficiency, energy savings, and eco-friendliness. Enhanced with pressure or normal pressure economizers and condensers, the boiler minimizes exhaust temperature while significantly reducing dust, nitrogen oxides, and sulfur oxides in flue gas, elevating energy efficiency and environmental sustainability. Weifu Boiler has proudly emerged as a leading national supplier of small and medium-sized oil (gas, electric) boilers in China. Weifu's esteemed clientele stretches across the major and mid-sized cities throughout mainland China. The company's commitment to environmental protection and energy conservation stands as a testament to its positive impact on mainland China.

Certifications

The company holds a prestigious national Class B manufacturing certificate. In the dynamic and competitive boiler market, where opportunities and challenges coexist, Weifu Boiler stands firm by its principles: 'creativity for development, credit for cooperation, and quality for market share.' This unwavering commitment allows us to excel and thrive in the industry. We are excited to share the incredible value of Weifu Boiler with you, offering solutions that meet your needs with exceptional quality and reliability.

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