
High thermal efficiency: The heat exchange is circulated back and forth in a completely closed vacuum chamber. Because it is made of imported stainless steel materials with extremely high heat transfer efficiency, The heat exchanger has high heat exchange efficiency and significant energy saving effect.
Absolute safety: The boiler is always in a negative pressure state during operation, and there is no risk of explosion. It is equipped with temperature sensors, safety valves, overheat protection and vacuum control switches and other multi-layer protection measures to take all aspects of potential safety hazards into consideration.
Eliminate the trouble of registration procedures: The boiler is shipped complete and operates under negative pressure. There is no possibility of expansion or explosion and it is not subject to supervision and inspection. During installation, you can be exempted from the complicated registration procedures of the functional departments, thus reducing your costs as much as possible.


Long life: The heat exchanger is made of stainless steel with the best heat transfer effect, which has fast heat transfer and corrosion resistance; the pipe ends are connected with flanges for easy maintenance and replacement.The furnace body is in a vacuum state, and there is no corrosion or scale. The heated tube bundle does not come into contact with the flame or flue gas, and relatively extends the service life.
Insulation structure: The 100mm double-layer insulation structure is adopted to reduce the external touch temperature of the boiler to room temperature, which not only increases safety but also greatly improves the thermal efficiency of the boiler.
Imported low-nitrogen burner: high-efficiency combustion, low noise, low exhaust emissions, in line with the requirements of the first-class areas of the country.
| 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 | |
| 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 | |
| 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 | |

Jiangsu Weifu Special Equipment Co.Ltd. is located at Tieta Road, Guyang Town, Dantu District, Zhenjiang City.The company is committed to integrating boiler marketing resources throughout mainland China, and through the marketing network, it conveys the concept, quality, price, and service of Weifu (oil, gas, electricity) boilers to customers. The company follows the concept of "being a real person and doing things honestly", making fine products and warming the world. The company advocates that in the process of Weifu boiler market operation, customers get value, employees get improvement, shareholders get benefits, companies get development, and the country gets tax revenue.
The company currently has more than 200 employees, including more than 40 professional technicians of various types. The company has more than 20, 000 square meters of modern factory buildings and advanced manufacturing and testing equipment, specializing in the design and manufacture of gas (oil, electricity) hot water boilers, gas (oil, electricity) steam boilers, gas (oil, electricity) vacuum hot water boilers, and gas (oil, electricity) organic carrier boilers.
The company follows the business philosophy of "what customers need is what we make", takes boiler products as the main product, and has developed vertical/horizontal gas (oil) steam boilers, vertical gas (oil) normal pressure/pressure hot water boilers, horizontal gas (oil) steam boilers, horizontal gas (oil) normal pressure/pressure hot water boilers, electric heating steam boilers, electric heating normal pressure hot water boilers, gas (oil) thermal oil boiler series products, a total of 7 series and nearly 300 specifications. The company′s products all adopt clean combustion technology. The horizontal pressure boiler body design adopts advanced structures such as corrugated furnace, conical furnace, threaded smoke pipe, wet back three-pass, etc. The boiler main engine is equipped with imported burners such as Riello, Aucma, Black & Decker, and Weishaupt, achieving the effect of high efficiency, energy saving and environmental protection of the boiler. The boiler is equipped with pressure or normal pressure economizers and condensers to further reduce the boiler exhaust temperature, while reducing the concentration of dust, nitrogen oxides and sulfur oxides in the flue gas, making the boiler more energy-saving and more environmentally friendly. Weifu Boiler has become a national supplier of small and medium-sized oil (gas, electric) boilers in China. Its customers are located in large and medium-sized cities in mainland China. It has contributed to environmental protection and energy conservation in mainland China.
The company Holds a national Class B manufacturing certificate,Facing the boiler market where opportunities and challenges coexist, Weifu Boiler adheres to the principle of "creativity for development, credit for cooperation, quality for market share". We will share the value of Weifu Boiler with you.






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