Electric Steam Boiler
What is Electric Steam Boiler – ESN Series
Hi-Therm Non-IBR Electric Steam Boiler ESN series is a packaged compact steam generator for low-pressure industrial process heating, pilot plants, labs and various other applications.
Hi-Therm electric steam boiler series employs immersion heating elements as the heating media. Unlike conventional fuel-fired steam boilers which burn coal, diesel or gas to generate steam, the electric steam boiler delivers a cleaner, safer and high efficiency alternative for steam-based heating applications.
It comprises an insulated pressure vessel with SS heating elements, feed water pump, water level controller, pressure and temperature controllers, steam valves, safety valves, drain valves and electrical accessories. All these components are packaged together in a common enclosure, prewired, mechanically complete and tested making it ready-for-operation.
Why Choose Electric Steam Boiler ESN Series
Zero Combustion, Zero On-site emissions
Suited for small-medium scale applications without the hassles of pollution norms
Non-IBR design with smaller volumetric capacity
Designed for smaller, low-pressure industrial processes where IBR certifications are unnecessary
Lower maintenance & safer compared to fuel-based boilers
These steam generators removes combustion related maintenance & hazards
Low working pressure & adequate steam output
Delivers up to 170°C temperature steam at 7 bar working pressure and up to 200 kg/hr steam flow rate
Packaged compact design & silent operation
Simply keep it next to the point of use with no dedicated boiler room requirement
Multiple steam generators with high turndown ratio
The ESN series has 1 to 4 steam generators resulting in instant high volume steam generation with turndown flexibility.
Stainless-steel outer finish
Makes it a versatile option for cleanroom, food processing, pharmaceutical sterilization, healthcare and similar industries.
ELECTRIC STEAM BOILER – CONSTRUCTION & OPERATION
The ESN series electric steam boilers have a sturdy construction with SS304 MOC pressure vessels and industrial grade, heavy duty SS316 MOC immersion heating elements. The outer cabinet is available in MS powder coated sheets or SS304 sheets as per requirement. The pressure vessels are designed for 1.5x rated working pressure as per standard engineering practices and are subjected to hydrostatic pressure test under a quality control inspection to ensure strength and no leaks.
Hi-Therm’s microprocessor based Level-Eye water level controller makes the boiler fully automatic and ensures safe operating conditions for the heating elements.
It uses the feedback from the high/low level probes in the pressure vessel to monitor the water level and automatically turns on/off the feed water pump and the heaters, thus ensuring optimal water level in the vessel at all times. The Boiler starts generating steam at a mere turn of a switch and requires little to no attention once it has achieved full pressure steam.
| Parameter | Values |
|---|---|
| Heating Capacity | 6 kW to 144 kW |
| Max. Steam Temperature | Up to 170°C |
| Power Supply | 440 V / 3 ph / 50 Hz |
| Thermal Efficiency | 97% |
| Max. Working Pressure | Up to 7 Bar |
| Heater Control Circuit | Contactor Based / SSR (Optional) |
| Pump Type | Centrifugal Monobloc Type |
| Temperature & Pressure Cut-off | Yes, as per set-point |
| Hi/Low Water Level Controller | Yes |
| Pump Protection | Yes (MCBs Provided) |
| Heater Fault Protection | Yes (MCBs Provided) |
| Over Pressure Protection | Yes (Safety Relief Valve) |
| Multifunction Meter (MFM) | Yes (Above 36 kW Models) |
| Design Standard | Standard Engineering Practices |
| Boiler Model | kW | Kgs/hr Steam | No. of Vessels | kW per Vessel | Dimensions (Inches) |
|---|---|---|---|---|---|
| ES-9* | 9 | 13 | 1 | 9 | 18 × 24 × 36 |
| ES-18 | 18 | 25 | 1 | 18 | 18 × 24 × 36 |
| ES-27 | 27 | 38 | 1 | 27 | 18 × 24 × 36 |
| ESN-36 | 36 | 50 | 1 | 36 | 36 × 24 × 48 |
| ESN-72 | 72 | 100 | 2 | 36 | 36 × 36 × 48 |
| ESN-108 | 108 | 150 | 3 | 36 | 45 × 45 × 48 |
| ESN-144 | 144 | 200 | 4 | 36 | 56 × 35 × 48 |
Customer Testimonials
| Chemicals | Pharmaceutical | Food & Beverages |
| Research Labs | Edible Oil Processing | Jacket Heating |
| Effluent Treatment | Educational Institutions | Testing Chambers |
| Metal Pretreatment | Preheating | Process Heating |
| Cosmetics | Pilot Plants | Rotary Dryers |