Steam and Water Analysis Systems (SWAS)
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Description


The Company designs and manufactures comprehensive Steam and Water Analysis Systems (SWAS) that provide continuous, real-time monitoring of key parameters in the water–steam cycle, such as pH, conductivity, silica, sodium, phosphate, and dissolved oxygen. These systems are essential for monitoring and controlling the quality of boiler feedwater, condensate, and steam to prevent corrosion, scaling, and operational inefficiencies.  These systems are designed to protect critical equipment by detecting any contamination or deviation in water chemistry that could lead to corrosion or deposition. The SWAS panels comprise sample conditioning modules, cooling systems, flow control devices, and analyzer housings integrated on a single skid or rack. Each system is engineered to ensure precision, safety, and reliability under high-temperature and high-pressure operating conditions.

The Company manufactures the following types of SWAS configurations:

· FIT SWAS (Fully Integrated and Tested Steam and Water Analysis Systems):Steam and water analysis system (SWAS) — A well designed Steam and Water Analysis system (SWAS) can help in monitoring the critical parameters in the steam. These parameters include pH, conductivity, silica, sodium, dissolved oxygen, phosphate and chlorides. A well-designed SWAS must ensure that the sample is representative till the point of analysis. The SWAS system comprised of shelters, walk-way, rack mounted, panel mounted designed as per the customer requirements are the best suited for power plants. These are safe for use, provide good working area for user & system expert, yet protects the equipment from unauthorised usage / fiddling. Hence Steam Equipment’s designed new concept of FIT SWAS (Fully Integrated Steam & Water Analysis System)

·  Modular System:Modular sampling panels for primary sampling and secondary sampling; Primary sampling module includes inlet isolation valve, blow down valve, sample cooler with cooling water inlet and outlet valve with coolant flow indicator to diagnose required flow of cooling water. Pressure reduction and high sample temperature safety valve (thermal shut off valve).

· Combined System:A compact arrangement that integrates multiple analysis streams and parameters within a single panel, optimizing space utilization while maintaining operational efficiency.

· Walkway Type System:Skid-mounted systems designed with a built-in walkway for easy accessibility and maintenance. These systems are suitable for large installations with multiple sample points and analyzers.

· Open Free Standing Rack:Economical, open-frame designs suitable for installations within sheltered environments. These racks facilitate accessibility and are easy to maintain.

· Plate Mounted System:Wall-mounted or plate-mounted SWAS panels designed for applications with space limitations or where modular installation is preferred. These systems are lightweight, compact, and ideal for retrofit applications.

· Lab Sampling Module:Compact bench-mounted units used for manual sampling and laboratory analysis. These systems are designed for pilot plants, research laboratories, and quality control facilities.

· Containerised Systems:Fully enclosed, prefabricated containerized SWAS units equipped with analyzers, chillers, and environmental control systems. These plug-and-play systems are suitable for remote site installations and harsh environmental conditions, offering  mobility and protection for sensitive instrumentation.

 Through this diverse range of SWAS configurations, the Company provides end-to-end solutions tailored to the size, capacity, and operational requirements of each client, ensuring long-term reliability and compliance with international standards.

 

Modular System
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Description

Modular sampling panels for primary sampling and secondary sampling; Primary sampling module includes inlet isolation valve, blow down valve, sample cooler with cooling water inlet and outlet valve with coolant flow indicator to diagnose required flow of cooling water. Pressure reduction and high sample temperature safety valve (thermal shut off valve).

Primary cooling sampling panel consists of rotameter, Back Pressure Regulator, Pressure Gauge, Temperature Gauge and Grab Valve with Tundish.

For conditioning scheme of both, primary and secondary panel- secondary panel includes Secondary Sample Cooler with chilled water inlet and outlet valve with chilled water Flow Indicator, Rotameter, Back Pressure Regulator, Pressure Gauge, Temperature Gauge and Grab Valve with Tundish. The chiller unit is skid mounted modular type, it’s a separate unit which will be connected to secondary cooler chilled water inlet and outlet connections. 

All Systems are designed in compliance with ASME PTC-19.11, USA, GDCD, UK, EPRI, VGB Standard S006-2012


Features

• Designed as per ASME PTC 19.11 recommendations.

• Design temperature of 650oC and pressure of 400 Bar.

• Compact double helix type, shell and tube sample coolers.

• All high-pressure components to pressure reducer can withstand temp up to 550oC.

• Automatic high temp shut off valves are used for high temp protection.

• No power supply required.

• No wiring required.

• Rod in tube type pressure reducer.

• Online pressure regulator cleaning.

• Back pressure regulator with SS diaphragm.

• Easy access to components.

• SS cooling water pipeline. 

Benefits

  • • SS cooling water pipeline.

    • Cost Effective system

    • Accurate & stable measurement system

    • Long Life Equipments

    • Compact design

Applications

• Steam applications Feed water

• Condensate, Boiler Water

• LP Drum Water

• LP/HP Steam, Life Steam

• Main Steam Demi Water

• Condensate, Boiler Water

• LP Drum Water

• LP/HP Steam

• Main Steam for power stations

Combined System
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Description

It consists of both wet panel and a dry panel combined into one system. It is customize built panel, which includes Primary and Secondary sampling components in one skid with indicating and control instruments like Isolation Valves, Blow Down Valves, Pressure Regulator, Pressure Gauge, Temperature Gauge, Rotameter, Grab Sample Valves are in front of the panel mounted on SS sheet with common Tundish.Dry panel components such as Sample Cooler, Filter, Cooling and Chilled Water Isolation Valves, Thermal Shut Off Valve, BPRV, Cation Column etc. are on the back of the panel. Flush mounted analyzer panel is adjacent to sample panel, which makes the combined panel compact and easily serviceable. All Systems are designed in compliance with ASME PTC-19.11, USA, GDCD, UK, EPRI, VGB Standard S006-2012 

Features

• Designed as per ASME PTC 19.11 recommendations.

• Design temp: 650oc and p: 400 Bar

• Compact double helix type, shell and tube sample coolers

• All high-pressure components to pressure reducer can withstand temp up to 550oC

• Automatic high temp shut off valves are used for high temp protection

• No power supply required

• No wiring required

• Rod in tube type pressure reducer

• Online pressure regulator cleaning

• No filters used

• Back pressure regulator with SS diaphragm

• Easy access to components

• SS cooling water pipeline 

Benefits

• Low maintenance Required

• Cost Effective system

• Accurate & stable measurement system

• Long Life Equipments

• Compact design 

Applications

• Steam applications Feed water

• Condensate, Boiler Water

• LP Drum Water

• LP/HP Steam, Life Steam

• Main Steam Demi Water

• Condensate, Boiler Water

• LP Drum Water

• LP/HP Steam

• Main Steam for power stations

• Quality Analyzer system

Walkway Type System
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Description

Walk in type sample Conditioning systems are specially designed as per NTPC & BHEL specifications and are suited for mid-size and large plants. These are safe for use, provide separate interface for user & system expert, thus protecting the equipment from unauthorised usage / fiddling. The deliveries of such systems can be given in a medium span.

All Systems are designed in compliance with ASME PTC-19.11, USA, GDCD, UK, EPRI, VGB Standard S006-2012 

Features

• Closed type construction

• Separate interface for operator

• Easy access for operator to all essential indicating instruments

• Design provides safety to the equipment ensuring longevity and trouble-free operation

• Number of lines: Selectable from 1 to 10 (more also available on request)

• Sample temperatures than can be handled: from 30 to 600oC. (more temperatures can be handled on request)

• Sample pressures than can be handled: from 1 to 300 Kg/cm2 (more pressures can be handled on request)

• Typical size of rack (per line): 2100mm (H) x 650mm (W) x 1200mm (D). (Width will increase incrementally as per number of lines)

• Cooling water temperature: 25 to 35oC (If more, special designs are available)

• Cooling water quality: preferably DeMin water with chloride content 35ppm (If different quality water is available, special designs are available)