Product Overview
The ZKS Series Industrial Gas/Oil-Fired Vacuum Hot Water Boiler is designed for reliable, energy-efficient heating and hot-water supply in commercial and industrial facilities. Operating under vacuum conditions, it uses a phase-change heat-transfer principle and a high-performance burner to deliver efficient heat exchange at water temperatures below 90°C. Its enclosed heat-medium circuit and integrated heat exchanger help reduce oxygen ingress and scaling, while a compact, integrated structure simplifies installation. With configurable heat exchangers and intelligent automatic controls, one unit can support space heating, domestic hot-water production, and swimming-pool heating according to project requirements.
Product Structure Drawing
Key Advantages
Operates under vacuum conditions at water temperatures below 90°C, reducing the risks associated with conventional pressurized hot-water systems. Installation and inspection requirements remain subject to local regulations.
Combines phase-change heat transfer with a high-performance burner to achieve thermal efficiency of ≥96% under specified operating conditions, helping reduce fuel consumption and operating costs.
A permanently enclosed heat-medium system and built-in stainless-steel heat exchanger help limit oxygen ingress and reduce internal scaling, supporting stable performance and long service life.
Configurable heat exchangers can provide space heating, domestic hot water, and swimming-pool heating from one boiler, subject to the required capacity and system configuration.
The integrated boiler body and heat exchanger minimize installation footprint and simplify on-site installation.
Automatic combustion adjustment, water-system control, monitoring, and safety interlocks support reliable operation with reduced manual intervention. Unattended operation must comply with applicable local codes and site requirements.
Typical Applications
Cooking、Pasteurization、Sterilization、Cleaning、Evaporation、Drying
Dyeing、Bleaching、Washing、Sizing、Printing、Drying、Finishing
Reactor Heating、Distillation、 Evaporation、Drying、Stripping、Tank Heating 、Cleaning
Pulp Cooking、Evaporation、Paper Drying、Starch Preparation、Coating、Tank Heating、Cleaning
Rubber Vulcanization、Compounding、Mold Heating、Process Water Heating、Equipment Cleaning、Drying
Space Heating、Domestic Hot Water、Campus Heating、Public Building Heating、Industrial Heat Supply、Peak-Load Support
Technical Specifications
| Item | Unit | ZKS0.35 | ZKS0.5 | ZKS0.7 | ZKS1.05 | ZKS1.4 | ZKS1.75 | ZKS2.1 | ZKS2.8 | ZKS3.5 | ZKS4.2 | |
| −85/60-Q | ||||||||||||
| Rated power | MW | 0.35 | 0.5 | 0.7 | 1.05 | 1.4 | 1.75 | 2.1 | 2.8 | 3.5 | 4.2 | |
| Rated working pressure | MPa | −0.02 | ||||||||||
| heat exchanger | MPa | ≤ 2.5 | ||||||||||
| Rated outlet water temperature | °C | 85 | ||||||||||
| Rated return water temperature | °C | 60 | ||||||||||
| Thermal efficiency | % | ≥ 96 | ||||||||||
| Water capacity | L | 1340 | 2000 | 2600 | 3250 | 3950 | 4920 | 5950 | 7430 | 8520 | 9560 | |
| water inlet and outlet | DN | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||||
| pollution discharge | DN | 40 | 50 | |||||||||
| fuel consumption | light oil | Kg/h | 32.4 | 43.2 | 64.7 | 97.1 | 129.5 | 162 | 194.2 | 259 | 324 | 389 |
| natural gas | Nm³/h | 36.8 | 49 | 73.5 | 110.3 | 147 | 183.6 | 220.6 | 294.1 | 368 | 441.2 | |
| city gas | Nm³/h | 83.4 | 111.1 | 166.7 | 250 | 333.3 | 416.7 | 500 | 666.7 | 833 | 1000 | |
| outline dimension | length | mm | 3050 | 3300 | 3550 | 4100 | 4200 | 4500 | 4600 | 5100 | 5500 | 6100 |
| width | mm | 1400 | 1400 | 1500 | 1600 | 1700 | 1800 | 2000 | 2150 | 2450 | 2400 | |
| height | mm | 1800 | 1800 | 1850 | 2000 | 2100 | 2200 | 2450 | 2650 | 2820 | 2820 | |
| weight | Kg | 2400 | 2550 | 3350 | 4600 | 5950 | 6700 | 7900 | 10500 | 14000 | 15500 | |
