Compact Once-through Steam Boiler
OT-350Gi
A smaller footprint,
a reliable steam supply.
350 kg/hr equivalent evaporation, a color HMI 2.0 and fast startup for production sites that need reliable steam, intuitive operation and flexible expansion.
Highlights
Used daily. Simple to run.
The OT-350Gi combines startup, monitoring and safety controls in a clear interface for limited spaces, changing loads and long production runs.
- 01Fast Startup
Steam about 4–5 minutes after ignition.
- 02Saves space
Compact once-through design, heating surface 5.9 m².
- 03HMI 2.0
Colour touchscreen that logs operation and every fault.
- 04Regulations
Under current rules, no operator licence or periodic inspection required.
- 05Optional economiser
Boiler efficiency 88%, up to 90% with an economiser.
- 06Safety controls
Safety valve 25 A, with full safety devices and controls.
Interface and details
OT-350Gi Specifications
The economizer recovers flue-gas heat to reduce fuel use. Actual savings depend on load and operating conditions.
| Spec | Standard | With economizer |
|---|---|---|
| Rated evaporation | 350 kg/hr | |
| Actual evaporation | 291 kg/hr | |
| Heat output | 188,650 kcal/hr | |
| Efficiency | 88% | 90% |
| Fuel consumption | LNG 22.1 Nm³/hr LPG 17.9 kg/hr | LNG 21.2 Nm³/hr LPG 17.5 kg/hr |
| Power | 1.2 kW | |
| Fuel inlet | 25 A | |
| Flue size | 200 mm | |
| Feedwater inlet | 20 A | |
| Steam outlet | 25 A | |
| Blowdown | 25 A | |
| Safety valve | 25 A | |
| Heating surface | 5.9 m² | |
| Dimensions | W750 × D1,300 × H2,000 mm | W750 × D1,370 × H2,000 mm |
| Weight | 780 kg | |
Test conditions & notes
- Actual evaporation is based on feedwater at 15°C and saturated steam at 0.49 MPa.
- Boiler efficiency is calculated by the JIS B 8222-1993 heat-loss method. Efficiency tolerance: ±1%; combustion capacity tolerance: ±3.5%.
- Fuel consumption is calculated using the specified lower heating value. Actual gas heating value and supply pressure affect the result.
- Gas piping must maintain adequate pressure while the boiler and other equipment operate. Supply pressure range: 0.03–0.3 MPa.
- With an economizer, a feedwater temperature of at least 50°C is recommended.
- Specifications may change as products improve. Refer to the latest technical information from Chuang Ting for final selection.
Check whether OT-350Gi suits your site.
Share your connected equipment, steam demand, operating hours and site conditions so our engineers can confirm capacity and system configuration.