IndiTech High Pressure (HP) Strainer is used for high pressure applications up to ANSI Class 2500. These strainers are designed in accordance with ASME B16.34 and ASME Section VIII-Div-1 and IBR.

• Simple, rigid & compact forged body
• Easy assembly & dismantling
• Low maintenance, easily available spares

• Operating conditions Media, Flow, Pressure, Temperature

Most modern boilers generate steam at high pressures & temperatures. High pressure steam has lesser volume than steam at atmospheric pressure, thereby translating into smaller boiler size & lower diameter of steam piping. Also, high temperature (superheated) steam has more energy, which translates into higher efficiency for power generating steam turbines.

The high pressure high temperature steam enters the PRDS station as shown in the figure. The steam inlet pressure gauge and dial thermometer indicate the pressure and temperature respectively of the inlet steam. The steam pressure control valve reduces the pressure of the steam. The steam inlet isolation valve along with the outlet isolation valve is used to isolate the steam pressure control valve, whenever maintenance of the control valve is to be carried out. The steam bypass valve allows steam flow at reduced pressure to continue when the steam pressure control valve is under maintenance or becomes inoperable. The spray water enters the water line as shown in the figure. The water strainer at the inlet prevents entry of foreign particles into the water control valve & desuperheater spray nozzles.

The water inlet pressure gauge indicates the pressure of the spray water. The water flow control valve regulates the quantity of the spray water going into the spray nozzles depending on the steam load. The water inlet / outlet isolation valves are used to isolate the water control valve, whenever maintenance of the control valve is to be carried out. The water bypass valve allows spray water flow to continue whenever the water flow control valve is under maintenance or becomes inoperable. The non-return valve prevents back flow of steam into the water pipe line. The desuperheater lowers the temperature of the steam to the required outlet temperature by injecting atomized water in the form of a very fine mist into the steam flow. The pressure transmitter and temperature transmitter sense the outlet steam pressure and temperature respectively and give a proportional current signal as output to the PID controller. The PID controller then compares the measured value with a set point, and generates an error signal, which is then given to the positioner of the steam pressure control valve and water flow control valve.

The spray water enters the DSH station as shown in the figure. The water strainer at the inlet prevents entry of foreign particles into the water control valve & desuperheater spray nozzles. The water inlet pressure gauge indicates the pressure of the spray water. The water flow control valve regulates the quantity of the spray water going into the spray nozzles, depending on the steam load. The water inlet / outlet isolation valves are used to isolate the water control valve, whenever maintenance of the control valve is to be carried out. The water bypass valve allows spray water flow to continue whenever the water flow control valve is under maintenance or becomes inoperable. The non-return valve prevents back flow of steam into the water pipe line.

The desuperheater lowers the temperature of inlet high temperature steam to the required outlet temperature by injecting atomized water into the steam flow. This is achieved by means of spray nozzles that atomize water into a very fine mist. The temperature transmitter senses the outlet steam temperature and gives a proportional current signal as output to the PID controller. The PID controller then compares the measured value with a set point, and generates an error signal, which is then given to the positioner of the water flow control valve.

The high pressure steam enters the PRS station as shown in the figure. The steam inlet pressure gauge and dial thermometer indicate the pressure and temperature respectively of the inlet steam. The steam pressure control valve reduces the pressure of the steam. The steam inlet isolation valve along with the outlet isolation valve is used to isolate the steam pressure control valve, whenever maintenance of the control valve is to be carried out. The steam bypass valve allows steam flow at reduced pressure to continue when the steam pressure control valve is under maintenance or becomes inoperable. The pressure transmitter senses the outlet steam pressure and gives a proportional current signal as output to the PID controller.

The PID controller then compares the measured value with a set point, and generates an error signal, which is then given to the positioner of the steam pressure control valve. The safety valve opens and relieves excess pressure when steam pressure goes above set value, and re-closes and prevents the further release of fluid after normal conditions have been restored.

The primary function of a blowdown valve is to control the concentrations of suspended & total dissolved solids (TDS) in the boiler. Boiler blowdown is a severe service application which results in rapid erosion and wearing out of conventional valves.

Continuous Blowdown (CBD) valves are designed to operate in continuous open position by releasing water continuously through a blowdown tap near the boiler water surface, thereby maintaining the TDS level in the boiler drum. IndiTech Continuous Blowdown Valve is an angle type valve with a needle shaped trim in a venturi diffuser. The venturi diffuser provides sufficient area for the high velocity flashing water, thereby avoiding choked flow.

Intermittent Blowdown (IBD) valves are designed to operate at predetermined intervals by releasing water & accumulated sludge periodically through a blowdown tap near the bottom of the boiler. The primary requirement of these valves is to provide tight shut-off even after repetitive blowdown operations. Earlier, these two functions (blowdown and sealing) were performed by two different valves installed in series and operated in a definite sequence. IndiTech Intermittent Blowdown Valve carries out both these functions in sequence i.e. blowdown in open position and sealing in closed position. This is achieved by providing a multi-step throttling plug, which splits the total pressure drop across each step. The sealing area is separate from the throttling area, which reduces erosion and provides leak tightness even after prolonged usage.

IndiTech Series 240 venturi desuperheaters are best suited for applications where water pressures are marginally above steam pressure. The inlet section of the venturi desuperheater has a converging profile, where the steam velocity increases. The steam then passes through a vena contracta. The spray water is injected at the outlet section of the venturi desuperheater, where the rapidly diverging profile causes increased turbulence levels. This ensures quick vaporization and efficient mixing of the spray water into the superheated steam flow. The spraywater quantity is controlled by an external control valve whichresponds to feedback from a controller and downstream temperature sensor.

Desuperheatersare used to lower the temperature of superheated steam to the desired set point by injecting atomized water into the superheated steam flow. IndiTech has a wide range of desuperheaters that provide precise steam temperature control for variousapplications.

Desuperheatersare used to lower the temperature of superheated steam to the desired set point by injecting atomized water into the superheated steam flow. IndiTech has a wide range of desuperheaters that provide precise steam temperature control for variousapplications. High performance custom designed nozzles ensure that water is atomized into a fine mist at all process conditions. The complete range of IndiTech desuperheaters is easy to install and requires low maintenance.

IndiTech Series 250 fixed nozzle desuperheaters are best suited for applications involvingminimalloadfluctuations. A fixed nozzle desuperheater utilizes high performancefixedgeometry nozzles to reduce the steam temperature by directly injecting water inside the superheated steam flow. The water enters the main desuperheater body, passes through the spray nozzlesand discharges into the steam line in the form of a fine mist. The spraywater quantity is controlled by an external control valve whichresponds to feedback from a controller and downstream temperature sensor.

IndiTech Series 260 spring loaded nozzle desuperheaters are best suited for applications involving moderate load fluctuations. A spring loaded nozzle desuperheater utilizes high performancevariable geometrynozzles to reduce the steam temperature by directly injecting water inside the superheated steam flow. The spray water enters the nozzle chamber through multiple tangentially drilled holes, thereby causingwaterto swirl within the nozzle chamber. The spring, which is pre-compressed to a certain set pressure, keeps the nozzle plug pressed against the seat.As soon as the pressure differential between the water & steam exceeds thisset pressure, the plug lifts from its seat and the spray water exits through the small circumferential opening, in the form of a fine mist.Number of nozzles, spring range and spring set pressure is selected based on the process specifications.The spraywater quantity is controlled by an external control valve whichresponds to feedback from a controller and downstream temperature sensor.

IndiTech High Pressure (HP) Strainer is used for high pressure applications up to ANSI Class 2500. These strainers are designed in accordance with ASME B16.34 and ASME Section VIII-Div-1 and IBR.

• Simple, rigid & compact forged body
• Easy assembly & dismantling
• Low maintenance, easily available spares

• Operating conditions Media, Flow, Pressure, Temperature

Most modern boilers generate steam at high pressures & temperatures. High pressure steam has lesser volume than steam at atmospheric pressure, thereby translating into smaller boiler size & lower diameter of steam piping. Also, high temperature (superheated) steam has more energy, which translates into higher efficiency for power generating steam turbines.

The high pressure high temperature steam enters the PRDS station as shown in the figure. The steam inlet pressure gauge and dial thermometer indicate the pressure and temperature respectively of the inlet steam. The steam pressure control valve reduces the pressure of the steam. The steam inlet isolation valve along with the outlet isolation valve is used to isolate the steam pressure control valve, whenever maintenance of the control valve is to be carried out. The steam bypass valve allows steam flow at reduced pressure to continue when the steam pressure control valve is under maintenance or becomes inoperable. The spray water enters the water line as shown in the figure. The water strainer at the inlet prevents entry of foreign particles into the water control valve & desuperheater spray nozzles.

The water inlet pressure gauge indicates the pressure of the spray water. The water flow control valve regulates the quantity of the spray water going into the spray nozzles depending on the steam load. The water inlet / outlet isolation valves are used to isolate the water control valve, whenever maintenance of the control valve is to be carried out. The water bypass valve allows spray water flow to continue whenever the water flow control valve is under maintenance or becomes inoperable. The non-return valve prevents back flow of steam into the water pipe line. The desuperheater lowers the temperature of the steam to the required outlet temperature by injecting atomized water in the form of a very fine mist into the steam flow. The pressure transmitter and temperature transmitter sense the outlet steam pressure and temperature respectively and give a proportional current signal as output to the PID controller. The PID controller then compares the measured value with a set point, and generates an error signal, which is then given to the positioner of the steam pressure control valve and water flow control valve.

The spray water enters the DSH station as shown in the figure. The water strainer at the inlet prevents entry of foreign particles into the water control valve & desuperheater spray nozzles. The water inlet pressure gauge indicates the pressure of the spray water. The water flow control valve regulates the quantity of the spray water going into the spray nozzles, depending on the steam load. The water inlet / outlet isolation valves are used to isolate the water control valve, whenever maintenance of the control valve is to be carried out. The water bypass valve allows spray water flow to continue whenever the water flow control valve is under maintenance or becomes inoperable. The non-return valve prevents back flow of steam into the water pipe line.

The desuperheater lowers the temperature of inlet high temperature steam to the required outlet temperature by injecting atomized water into the steam flow. This is achieved by means of spray nozzles that atomize water into a very fine mist. The temperature transmitter senses the outlet steam temperature and gives a proportional current signal as output to the PID controller. The PID controller then compares the measured value with a set point, and generates an error signal, which is then given to the positioner of the water flow control valve.

The high pressure steam enters the PRS station as shown in the figure. The steam inlet pressure gauge and dial thermometer indicate the pressure and temperature respectively of the inlet steam. The steam pressure control valve reduces the pressure of the steam. The steam inlet isolation valve along with the outlet isolation valve is used to isolate the steam pressure control valve, whenever maintenance of the control valve is to be carried out. The steam bypass valve allows steam flow at reduced pressure to continue when the steam pressure control valve is under maintenance or becomes inoperable. The pressure transmitter senses the outlet steam pressure and gives a proportional current signal as output to the PID controller.

The PID controller then compares the measured value with a set point, and generates an error signal, which is then given to the positioner of the steam pressure control valve. The safety valve opens and relieves excess pressure when steam pressure goes above set value, and re-closes and prevents the further release of fluid after normal conditions have been restored.

The primary function of a blowdown valve is to control the concentrations of suspended & total dissolved solids (TDS) in the boiler. Boiler blowdown is a severe service application which results in rapid erosion and wearing out of conventional valves.

Continuous Blowdown (CBD) valves are designed to operate in continuous open position by releasing water continuously through a blowdown tap near the boiler water surface, thereby maintaining the TDS level in the boiler drum. IndiTech Continuous Blowdown Valve is an angle type valve with a needle shaped trim in a venturi diffuser. The venturi diffuser provides sufficient area for the high velocity flashing water, thereby avoiding choked flow.

Intermittent Blowdown (IBD) valves are designed to operate at predetermined intervals by releasing water & accumulated sludge periodically through a blowdown tap near the bottom of the boiler. The primary requirement of these valves is to provide tight shut-off even after repetitive blowdown operations. Earlier, these two functions (blowdown and sealing) were performed by two different valves installed in series and operated in a definite sequence. IndiTech Intermittent Blowdown Valve carries out both these functions in sequence i.e. blowdown in open position and sealing in closed position. This is achieved by providing a multi-step throttling plug, which splits the total pressure drop across each step. The sealing area is separate from the throttling area, which reduces erosion and provides leak tightness even after prolonged usage.

IndiTech Series 240 venturi desuperheaters are best suited for applications where water pressures are marginally above steam pressure. The inlet section of the venturi desuperheater has a converging profile, where the steam velocity increases. The steam then passes through a vena contracta. The spray water is injected at the outlet section of the venturi desuperheater, where the rapidly diverging profile causes increased turbulence levels. This ensures quick vaporization and efficient mixing of the spray water into the superheated steam flow. The spraywater quantity is controlled by an external control valve whichresponds to feedback from a controller and downstream temperature sensor.

Desuperheatersare used to lower the temperature of superheated steam to the desired set point by injecting atomized water into the superheated steam flow. IndiTech has a wide range of desuperheaters that provide precise steam temperature control for variousapplications.

Desuperheatersare used to lower the temperature of superheated steam to the desired set point by injecting atomized water into the superheated steam flow. IndiTech has a wide range of desuperheaters that provide precise steam temperature control for variousapplications. High performance custom designed nozzles ensure that water is atomized into a fine mist at all process conditions. The complete range of IndiTech desuperheaters is easy to install and requires low maintenance.

IndiTech Series 250 fixed nozzle desuperheaters are best suited for applications involvingminimalloadfluctuations. A fixed nozzle desuperheater utilizes high performancefixedgeometry nozzles to reduce the steam temperature by directly injecting water inside the superheated steam flow. The water enters the main desuperheater body, passes through the spray nozzlesand discharges into the steam line in the form of a fine mist. The spraywater quantity is controlled by an external control valve whichresponds to feedback from a controller and downstream temperature sensor.

IndiTech Series 260 spring loaded nozzle desuperheaters are best suited for applications involving moderate load fluctuations. A spring loaded nozzle desuperheater utilizes high performancevariable geometrynozzles to reduce the steam temperature by directly injecting water inside the superheated steam flow. The spray water enters the nozzle chamber through multiple tangentially drilled holes, thereby causingwaterto swirl within the nozzle chamber. The spring, which is pre-compressed to a certain set pressure, keeps the nozzle plug pressed against the seat.As soon as the pressure differential between the water & steam exceeds thisset pressure, the plug lifts from its seat and the spray water exits through the small circumferential opening, in the form of a fine mist.Number of nozzles, spring range and spring set pressure is selected based on the process specifications.The spraywater quantity is controlled by an external control valve whichresponds to feedback from a controller and downstream temperature sensor.