structural & pressure parts
Boiler
NTPL stands as an industry-defining powerhouse in boiler manufacturing, delivering transformative end-to-end EPCM solutions for the power sector. We engineer and commission ultra-high-pressure boiler components, sophisticated piping networks, and complete utility-scale industrial power plants—from design to final handover. Our expertise drives fuel firing optimization, ultra-supercritical boiler technology, comprehensive Balance of Plant systems, and integrated cogeneration modules. NTPL leads with innovative automation, control architectures, and sustainable process upgrades that boost energy efficiency and slash emissions. Harnessing digitalization and global standards, we ensure unmatched operational reliability and plant performance. Partner with NTPL to pioneer the future of reliable, eco-friendly power generation.
Delivering Efficient Boiler & Industrial Systems
New Boilers
We specialize in the design, engineering, and manufacturing of high-performance boilers, including AFBC, WHRB, HRSG, and Oil & Gas Fired Boilers, ensuring maximum efficiency, reliability, and compliance with industry standards.
IBR & Non-IBR Piping Solutions
Our expertise covers design, stress analysis, detailed engineering, IBR calculations, fabrication, supply, and erection of IBR & Non-IBR piping systems, ensuring optimal safety, durability, and regulatory compliance.
Boiler Renovation & Upgradation
We offer retrofit solutions, including conversion of existing boilers to AFBC technology and performance upgradation of aging boiler systems, enhancing efficiency, emissions control, and operational lifespan.
Fuel Handling Systems
We provide end-to-end fuel handling solutions, including design, engineering, manufacturing, supply, erection, and commissioning, enabling seamless fuel transport, storage, and combustion optimization
Boiler Spare Components
We do supply of IBR pressure parts such as Bed Coils, Water Walls, Bank Tubes, Superheaters, Economizers, and Evaporators, alongside Non-IBR components such as Air Nozzles, Coal Nozzles, Mixing Nozzles, Fuel Feeders, Air Preheaters, Bunkers, Silos, Chimneys, Supports, and Ducting, ensuring seamless plant operation and longevity.
Delivering Efficient Boiler & Industrial Systems
New Boilers
We specialize in the design, engineering, and manufacturing of high-performance boilers, including AFBC, WHRB, HRSG, and Oil & Gas Fired Boilers, ensuring maximum efficiency, reliability, and compliance with industry standards.
IBR & Non-IBR Piping Solutions
Our expertise covers design, stress analysis, detailed engineering, IBR calculations, fabrication, supply, and erection of IBR & Non-IBR piping systems, ensuring optimal safety, durability, and regulatory compliance.
Boiler Renovation & Upgradation
We offer retrofit solutions, including conversion of existing boilers to AFBC technology and performance upgradation of aging boiler systems, enhancing efficiency, emissions control, and operational lifespan.
Fuel Handling Systems
We provide end-to-end fuel handling solutions, including design, engineering, manufacturing, supply, erection, and commissioning, enabling seamless fuel transport, storage, and combustion optimization
Boiler Spare Components
We do supply of IBR pressure parts such as Bed Coils, Water Walls, Bank Tubes, Superheaters, Economizers, and Evaporators, alongside Non-IBR components such as Air Nozzles, Coal Nozzles, Mixing Nozzles, Fuel Feeders, Air Preheaters, Bunkers, Silos, Chimneys, Supports, and Ducting, ensuring seamless plant operation and longevity.
Delivering Efficient Boiler & Industrial Systems
New Boilers
We specialize in the design, engineering, and manufacturing of high-performance boilers, including AFBC, WHRB, HRSG, and Oil & Gas Fired Boilers, ensuring maximum efficiency, reliability, and compliance with industry standards.
IBR & Non-IBR Piping Solutions
Our expertise covers design, stress analysis, detailed engineering, IBR calculations, fabrication, supply, and erection of IBR & Non-IBR piping systems, ensuring optimal safety, durability, and regulatory compliance.
Boiler Renovation & Upgradation
We offer retrofit solutions, including conversion of existing boilers to AFBC technology and performance upgradation of aging boiler systems, enhancing efficiency, emissions control, and operational lifespan.
Fuel Handling Systems
We provide end-to-end fuel handling solutions, including design, engineering, manufacturing, supply, erection, and commissioning, enabling seamless fuel transport, storage, and combustion optimization
Boiler Spare Components
We do supply of IBR pressure parts such as Bed Coils, Water Walls, Bank Tubes, Superheaters, Economizers, and Evaporators, alongside Non-IBR components such as Air Nozzles, Coal Nozzles, Mixing Nozzles, Fuel Feeders, Air Preheaters, Bunkers, Silos, Chimneys, Supports, and Ducting, ensuring seamless plant operation and longevity.
Delivering Efficient Boiler & Industrial Systems
New Boilers
We specialize in the design, engineering, and manufacturing of high-performance boilers, including AFBC, WHRB, HRSG, and Oil & Gas Fired Boilers, ensuring maximum efficiency, reliability, and compliance with industry standards.
IBR & Non-IBR Piping Solutions
Our expertise covers design, stress analysis, detailed engineering, IBR calculations, fabrication, supply, and erection of IBR & Non-IBR piping systems, ensuring optimal safety, durability, and regulatory compliance.
Boiler Renovation & Upgradation
We offer retrofit solutions, including conversion of existing boilers to AFBC technology and performance upgradation of aging boiler systems, enhancing efficiency, emissions control, and operational lifespan.
Fuel Handling Systems
We provide end-to-end fuel handling solutions, including design, engineering, manufacturing, supply, erection, and commissioning, enabling seamless fuel transport, storage, and combustion optimization
Boiler Spare Components
We do supply of IBR pressure parts such as Bed Coils, Water Walls, Bank Tubes, Superheaters, Economizers, and Evaporators, alongside Non-IBR components such as Air Nozzles, Coal Nozzles, Mixing Nozzles, Fuel Feeders, Air Preheaters, Bunkers, Silos, Chimneys, Supports, and Ducting, ensuring seamless plant operation and longevity.
our services
Waste Heat Recovery Boiler (WHRB)
Waste Heat Recovery Boilers (WHRBs) are engineered to recover heat from exhaust gases of industrial processes such as sponge iron kilns, coke ovens, gas turbines, and metallurgical furnaces. These systems utilize sensible heat to produce steam without auxiliary fuel firing, significantly enhancing plant efficiency and reducing carbon footprint.
Heat Recovery Steam Generator (HRSG)
Heat Recovery Steam Generators (HRSGs) harness exhaust heat from gas turbines in combined cycle power plants, converting it into high-pressure steam for additional power generation or process heating. Designed for high flexibility, HRSGs deliver unmatched thermal efficiency and seamless gas turbine integration.
Atmospheric Fluidized Bed Combustion Boiler (AFBC)
AFBC Boilers are engineered for efficient combustion of low-grade, high-ash solid fuels. The fluidized bed ensures uniform temperature, enhanced heat transfer, and reduced emissions while maintaining stable operation across variable loads and fuel types.
Oil & Gas Fired Boilers
Oil and Gas Fired Boilers are precision-engineered for reliable, efficient, and clean energy generation across industrial and utility-scale applications. Featuring optimized furnace geometry, advanced burner management, and safety controls, these systems achieve superior combustion efficiency and low emissions.
Biomass Fired Boilers – Renewable Energy Combustion Systems
Biomass-Fired Boilers provide sustainable, carbon-neutral energy solutions utilizing diverse agro-residues and renewable solid fuels. Designed with advanced grate combustion systems—travelling, dumping, pinhole, and pusher types—these boilers ensure complete combustion, fuel flexibility, and high efficiency.
our services
we provide best services
Waste Heat Recovery Boiler (WHRB)
Waste Heat Recovery Boilers (WHRBs) are engineered to recover heat from exhaust gases of industrial processes such as sponge iron kilns, coke ovens, gas turbines, and metallurgical furnaces. These systems utilize sensible heat to produce steam without auxiliary fuel firing, significantly enhancing plant efficiency and reducing carbon footprint.
Engineering Highlights:
• Modular or site-erected configuration with quick installation capability
• Horizontal or vertical gas flow design optimized for process layout
• Advanced heat recovery surfaces for high thermal efficiency and minimal pressure drop
• Provision for supplementary or auxiliary firing for steam demand stability
• Integration with economizer, evaporator, superheater, hot gas inlet duct for high energy recovery
- Applications: Sponge Iron Plants, Non-Ferrous Smelters, Refineries, Petrochemical Units, Sulphur Recovery, Gasification & Reforming Systems
Heat Recovery Steam Generator (HRSG)
Engineering Highlights:
• Available in horizontal and vertical gas flow configurations
• Modular construction for faster erection and maintenance
• Multi-pressure steam generation (LP/HP/HRH) for optimized energy recovery
• Compatible with supplementary duct firing and SCR/DeNOx systems
• High-efficiency finned tube heat exchangers for compact footprint and durability
• Applications: Combined Cycle Power Plants, Refineries, Petrochemical & Fertilizer Complexes
Atmospheric Fluidized Bed Combustion Boiler (AFBC)
AFBC Boilers are engineered for efficient combustion of low-grade, high-ash solid fuels. The fluidized bed ensures uniform temperature, enhanced heat transfer, and reduced emissions while maintaining stable operation across variable loads and fuel types.
Engineering Highlights:
• Uniform Bed Temperature: Prevents slagging and hot spots through even fluidization
• Low NOₓ & SOₓ Emissions: In-bed desulphurization using limestone or dolomite
• Fuel Flexibility: Handles wide variations in fuel moisture, ash, and size
• Low Maintenance: No moving parts in furnace; studded membrane walls resist erosion
• Load Flexibility: High turndown ratio and steady combustion control via air flow modulation
• Ash Management: Continuous ash draining maintains bed stability and minimizes clinker formation
- Fuel Compatibility: Coal, Lignite, Bagasse, Rice Husk, Biomass, Sludge, Agro-Waste
Oil & Gas Fired Boilers
Oil and Gas Fired Boilers are precision-engineered for reliable, efficient, and clean energy generation across industrial and utility-scale applications. Featuring optimized furnace geometry, advanced burner management, and safety controls, these systems achieve superior combustion efficiency and low emissions.
Design Variants:
• Horizontal Shell Type (3-Pass, Fully Wetback) for process steam duties
• “D-Type” Bi-Drum Water Tube design for process and cogeneration applications
• Single Drum Water Tube construction for high-pressure, high-temperature steam
• Gas-Tight Membrane Wall Furnace with optimum pitch ensures uniform heat flux
Engineering Highlights:
• Advanced Combustion Control: Modulating burners with precise fuel-air ratio management
• Flame Safety Systems: UV/IR scanners, pressure interlocks, and auto shutoff for safe operation
• Fuel Flexibility: Dual-fuel options with automatic switchover systems
• Draught System Options: Forced Draft or Balanced Draft, depending on fuel and application
• Heat Recovery: Integrated economizers for flue gas heat utilization and efficiency >90%
• Performance: Low NOₓ operation, quick start-up, 1:6 turndown ratio, and high reliability
- Fuels: Natural Gas, Furnace Oil, HSD, LPG, Process Gas Mixtures
Applications:
Refineries | Petrochemical Plants | Power & Co-Generation | Chemical Processing | Textile | Food & Beverage
Biomass Fired Boilers – Renewable Energy Combustion Systems
Biomass-Fired Boilers provide sustainable, carbon-neutral energy solutions utilizing diverse agro-residues and renewable solid fuels. Designed with advanced grate combustion systems—travelling, dumping, pinhole, and pusher types—these boilers ensure complete combustion, fuel flexibility, and high efficiency.
Engineering Highlights:
• Optimized Grate Combustion: Uniform air distribution ensures low unburnt carbon (<1%) and high thermal efficiency
• Emission Control: Integrated multicyclones/ESPs for reduced particulate emissions and low NOₓ generation
• Fuel Flexibility: Handles wide variations in fuel moisture and size without affecting stability
• Durability: Water-cooled membrane walls and refractory-lined zones for longer lifecycle and reduced erosion
• Heat Recovery: Economizer and air preheater integration for enhanced plant efficiency
• Applications: Cogeneration, Captive Power, Process Steam in Sugar, Paper, Food & Agro Industries
- Fuel Compatibility: Bagasse, Rice Husk, Wood Chips, Sawdust, Coffee Husk, Straw, Coconut Shells, Palm Waste, Biomass Briquettes
boiler design consulting services
engineering excellence across diverse sectors
what we offer
End-to-end engineering excellence from concept to commissioning. NTPL delivers precision-engineered solutions encompassing detailed design, advanced process engineering, procurement, fabrication, and on-site project execution.
boiler design
boiler study
EPCM
project studies
commissioning services
construction supervision
detailed engineering
energy audits
engineering & supply
procurement services
project management
residual life assessment
techno-economic feasibility study
third- party inspection services
BOILERS
- Waste Heat Recovery Boiler (WHRB)
- Heat Recovery Steam Generator (HRSG)
- Atmospheric Fluidized Bed Combustion Boiler (AFBC)
- Oil & Gas Fired Boilers
- Biomass Fired Boilers – Renewable Energy Combustion Systems
REPAIR & SERVICES
- Full & Partial Boiler Retube
- Engineered Refractory
- Superheater Repair & Replacement
- Engineered Tangent Wall Solutions
- Economizer Repair & Replacement
- Steam Drum Internal Upgrades
- Boiler Pressure Part Repair & Replacement
EPC PROJECTS
- Piping
- Boiler Spare Components
- All IBR Components
- Steam Drum
- Water wall panels
- Bank tubes
- Superheater Coils
- Economiser Coils
- Evaporator Coils
- IBR Pipings
- Bed coil
NON IBR COMPONENTS
- Air Nozzle
- Coal Nozzle
- Mixing Nozzle
- Cross
- Fuel Feeders
- Bunker
- Mechanical Dust Collector
- Silo
- Chimney
- Ductings
- Supporting Structure
BOILERS
- Waste Heat Recovery Boiler (WHRB)
- Heat Recovery Steam Generator (HRSG)
- Atmospheric Fluidized Bed Combustion Boiler (AFBC)
- Oil & Gas Fired Boilers
- Biomass Fired Boilers – Renewable Energy Combustion Systems
REPAIR & SERVICES
- Full & Partial Boiler Retube
- Engineered Refractory
- Superheater Repair & Replacement
- Engineered Tangent Wall Solutions
- Economizer Repair & Replacement
- Steam Drum Internal Upgrades
- Boiler Pressure Part Repair & Replacement
EPC PROJECTS
- Piping
- Boiler Spares Components
- All IBR Components
- Steam Drum
- Water wall panels
- Bank tubes
- Superheater Coils
- Economiser Coils
- Evaporator Coils
- IBR Pipings
- Bed coil
NON IBR COMPONENTS
- Air Nozzle
- Coal Nozzle
- Mixing Nozzle
- Cross
- Fuel Feeders
- Bunker
- Mechanical Dust Collector
- Silo
- Chimney
- Ductings
- Supporting Structure
our services
Super heater design
calculations
GA drawings
preparation
Fabrication drawings preparation
Chimney height
calculations
Chimney shell thickness calculations
Steam drum design
calculations
Water drum design
calculations
Deaerator design
calculations
Economizer design
calculations
Boiler design calculations preparation
according to ASME Section VIII Div -1, Div -2, ASME Section I, IBR, BS5500, and all other international codes.
OUR SERVICES
- Boiler design calculations preparation according to ASME Section VIII Div -1, Div -2, ASME Section I, IBR, BS5500, and all other international codes.
- GA drawings preparation.
- Fabrication drawings preparation.
- Chimney height calculations
- Chimney shell thickness calculations.
- Steam drum design calculations
- Water drum design calculations
- Deaerator design calculations
- Economizer design calculations
- Super heater design calculations