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Mazda Limited designs and manufactures industrial heat transfer equipment for power generation and other process applications where efficient heat recovery, steam condensation, and controlled thermal energy transfer are essential. Our portfolio includes Condensing Systems, HP and LP heaters, Gland Steam Condensers, Dump Condenser and Dump tubes – engineered around each plant’s operating pressure, temperature, steam flow, and installation conditions rather than supplied as fixed configurations.
Mazda Limited has been engineering and manufacturing process equipment since 1977, with expertise spanning heat transfer and vacuum technologies, and holds ISO 9001, ISO 14001, and ISO 45001 certification along with PED, IBR, ASME, and U-Stamp compliance. Within this, the Heat Transfer Division designs equipment to ASME, HEI, and TEMA standards, with systems installed across multiple continents.
Heat transfer equipment transfers thermal energy between two or more process streams without necessarily mixing them. In a power plant’s steam-water cycle, this equipment sits at specific points between the turbine and the boiler – condensing exhaust steam, preheating feedwater with extraction steam, recovering gland sealing steam, and managing steam that bypasses the turbine during startup, shutdown, or trip conditions.
Equipment selection depends on required heat duty, operating pressure and temperature, flow rate, and where the equipment sits in the plant’s steam cycle – a Condenser, Feedwater heater, Gland Steam Condenser, Dump Condenser or Dump Tube each serves a different stage of that cycle.
Convert steam into condensate, recovering thermal energy while maintaining the pressure conditions the turbine or process needs. Mazda delivers custom configurations tailored to specific vacuum and plant requirements:
Condensing System – a condensing system designed for integration with Surface Condensers, Steam Jet Air Ejectors (SJAE), Gland Condensers, and associated steam-cycle equipment — including designs for Geothermal applications.
Dump Condensing System – condenses steam diverted directly from the boiler when the turbine is offline or during startup, shutdown, or trip conditions, protecting the boiler while recovering the bypassed steam as usable condensate.
Use extracted turbine steam to preheat boiler feedwater, reducing fuel consumption and improving overall cycle efficiency. Mazda supplies both pressure classes, positioned at different stages of the feedwater train:
H P Heaters – installed between the boiler feed pump and the boiler/economizer, using high-pressure turbine extraction steam – built for higher Tube-side pressure and temperature duty.
L P Heaters – installed between the condenser and the deaerator, using low-pressure extraction steam – the first stage of feedwater preheating, at lower pressure duty than HP heaters.
Recover steam leaking from the turbine’s shaft gland seals and handle the associated non-condensable gases, preventing steam loss to atmosphere while maintaining sealing conditions. Mazda offers two extraction methods:
Gland Vent / Steam Condenser with Blower – uses a motor-driven exhauster to actively draw the air-vapor mixture from the gland condenser, giving consistent extraction independent of ambient conditions.
Gland Vent / Steam Condenser with Ejector & Silencer – vents the non-condensable gas stream through a Ejector and Silencer instead of a powered blower, reducing moving parts, auxiliary power draw, and discharge noise.
Support controlled steam discharge and protect plant equipment when the normal steam path is unavailable.
Dump Tubes – desuperheating dump tubes that condition bypassed steam before it enters the condenser, protecting condenser internals from thermal and mechanical shock during a turbine trip. Design depends on steam flow, pressure, temperature, and installation configuration.
Selection depends on the process and operating conditions, not the equipment name alone – heat transfer duty, steam and feedwater flow rates, operating pressure and temperature, cooling medium, condensate requirements, materials of construction, and available installation space all factor in, alongside the equipment’s role in the plant’s overall steam and condensate cycle.
| Application Requirement | Suggested Equipment |
| Condensing turbine exhaust steam to maintain vacuum | Condensing System (Surface Condenser Package) |
| Preheating feedwater with high-pressure extraction steam | H P Heater |
| Preheating feedwater with low-pressure extraction steam | L P Heater |
| Recovering turbine gland seal steam, consistent vacuum priority | Gland Steam Condenser with Blower |
| Recovering turbine gland seal steam, low noise/auxiliary power priority | Gland Steam Condenser with Ejector and Silencer |
| Protecting boiler/turbine during startup, shutdown, or trip | Dump Condensing System + Dump Tubes |
Mazda’s engineering team reviews these parameters as part of the plant’s overall steam cycle before recommending a configuration, rather than offering a fixed, off-the-shelf system.
converts exhaust or process steam into condensate, maintaining required pressure conditions and enabling condensate recovery
transfers heat from extracted steam to feedwater, reducing the thermal energy required in later cycle stages
handles gland sealing steam and non-condensable gases from turbine shaft seals
provides controlled handling of bypassed steam during startup, shutdown, or trip conditions
supports controlled steam distribution and flow management through dump tubes and related equipment
recovers useful thermal energy from steam and process streams to improve overall plant energy utilization
Mazda’s heat transfer equipment is primarily designed for power generation and steam-cycle applications, including:
Mazda’s Heat Transfer Division engineers equipment around each plant’s specific steam cycle and operating conditions, backed by ISO 9001, ISO 14001, and ISO 45001 certification, PED compliance, and IBR, ASME, and U-Stamp accreditation across the company. Customers get in-house engineering and after-sales technical assistance for both domestic and export projects, including reference installations for Triveni Turbines.
Heat transfer equipment condenses turbine exhaust steam, preheats boiler feedwater using extraction steam, and recovers steam leaking from turbine gland seals - improving thermal efficiency and reducing fuel and water consumption.
A condenser converts turbine exhaust or process steam into condensate, maintaining the pressure conditions the steam cycle requires and enabling that condensate to be recovered and reused within the plant.
HP (high-pressure) heaters are installed between the boiler feed pump and the boiler, using high-pressure extraction steam. LP (low-pressure) heaters are installed between the condenser and deaerator, using low-pressure extraction steam. Both preheat feedwater to improve thermal efficiency, but at different points and pressures in the cycle.
A gland steam condenser recovers steam that leaks past the turbine's shaft seals and handles the associated non-condensable gases - condensing the steam for reuse instead of venting it to atmosphere, while maintaining proper sealing conditions.
A dump condensing system condenses steam diverted directly from the boiler when the turbine is offline, or during startup, shutdown, or trip conditions - protecting the boiler and turbine while recovering the bypassed steam.
Yes. Mazda's heat transfer equipment is engineered to each plant's steam cycle, operating pressure, and site conditions, including retrofits and replacement of existing condensers or heaters.
Both. Mazda supplies complete turnkey condensing packages as well as individual components - Surface Condensers, Ejector System, Condensate Pumps, Gland steam condensers, Control Valve stations, instrumentation and Dump systems.
A condenser is a type of heat transfer equipment designed primarily to remove heat from a Steam and convert it into a liquid, while a heat exchanger can transfer heat between two fluids without necessarily changing their phase. The appropriate equipment depends on the process and required heat-transfer duty.
Performance depends on factors such as heat-transfer duty, flow rate, operating pressure and temperature, temperature difference, fluid characteristics, material selection, fouling, pressure drop, and the design of the equipment.
Explore our range of heat transfer equipment to find the technology suited to your plant’s steam cycle.
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