Inditech Valves Pvt Ltd Pune, Maharashtra

The IndiTech Series 220 3-way control valve is used for converging (flow mixing) or diverging (flow splitting) service in a process control system. This valve is ideally suited for applications involving thermic fluid, water, steam, oils & other industrial fluids. Both mixing and dividing type valves are designed so that flow tends to open plug passages, thereby avoiding vibrations and leading to stable process control. The simple valve construction ensures reliable performance and easy in-line maintenance.   Features Valve body design optimized to handle high capacity flows. Slotted plug with inherent linear flow characteristics for regulating control. Double seated design with flow tending to open both ports. This provides flow stability with excellent process control. Trim provided with both top guiding & seat guiding, thus helping to eliminate problems of vibrations. Easy in-line maintenance facilitated by both top and bottom entry access to valve internals. Modular design with interchangeable parts for both mixing and dividing designs. Approved under IBR (Indian Boiler Regulation Act).

• MOQ 1 Piece(s)
• Size1.1/2inch, 1inch, 2inch
• TypeBlow Down Valve
• MaterialCarbon Steeel, Stainless Steel
• CertificationISO 9001:2008 Certified
• ApplicationIndustrial
• PressureHigh, Medium
• Number Of Way2way
• Country of OriginIndia
• Brand NameIndiTech

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.

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.   Features Variable area orifice, back pressure activated desuperheater. Capable of maintaining steam temperature to saturation +6°C. Set pressure & spring range selection ensures sequential opening of the individual nozzles.This leads to precise control of water flow and thereby temperature. Wide range of Kv / Cv values by using special nozzle combinations. High performance variable geometry nozzles that atomize water into a fine mist. Replaceable individual nozzles.

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.

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.