Latest Products https://www.jetflow.co.in Latest Products Mon, 10 Aug 2020 07:52:50 +0530 en-us https://www.jetflow.co.in Steam Jet Ejector Vacuum Systems https://www.jetflow.co.in/steam-jet-ejector-vacuum-systems.htm https://www.jetflow.co.in/steam-jet-ejector-vacuum-systems.htm Vacuum Division Tue, 14 Nov 2017 00:00:00 +0530 Steam Desuperheaters https://www.jetflow.co.in/steam-desuperheaters.htm https://www.jetflow.co.in/steam-desuperheaters.htm Valve Division Tue, 14 Nov 2017 00:00:00 +0530 Single and Two Stage Steam Jet Ejector https://www.jetflow.co.in/single-and-two-stage-steam-jet-ejector.htm https://www.jetflow.co.in/single-and-two-stage-steam-jet-ejector.htm Tue, 14 Nov 2017 00:00:00 +0530 Single-Stage Steam Jet Ejectors are based on the ejector-venturi principle. In operation, steam issuing through an expanding nozzle has its pressure energy converted to velocity energy. A vacuum is created and the high velocity of steam entrains air or gas and the mixture of gas and steam enters the converging end of the venturi, passes through the diffuser where its velocity energy is converted into pressure sufficient to discharge against a predetermined back pressure. Single stage steam jet ejectors are used to create vacuum covering 40 mm Hg. Absolute.Two Stage Ejector with Condenser - The system is the assembly of two units whose construction is similar to single stage with inter condenser (direct contact type or surface type). Steam of the first stage is expanded through nozzle entrains the air or other gases and discharges them to diffusers at a higher pressure in the condenser. The discharge from the first stage will then directed to condenser which reduces volume of discharge gases. These gases turn discharged with the help of second stage ejector. The ejector is required to be placed at sufficient height to drain the ejector condenser barometrically. If barometric installation is not possible then an extraction pump is provided to drain the condenser in vacuum. The discharge or exhaust steam and entrained gases is directed to the atmosphere or can be condensed by an after condenser or lead to a water tank if required.  Absolute Pressure Range: Vacuum from 100 MM HG Absolute to 10 MM HG Absolute. Three Stage Steam Jet Ejector https://www.jetflow.co.in/three-stage-steam-jet-ejector.htm https://www.jetflow.co.in/three-stage-steam-jet-ejector.htm Tue, 14 Nov 2017 00:00:00 +0530 Three Stage Ejector is similar in construction as of Single Stage Ejector, but having intermediate condensers. Three Stage Ejector comprises of Booster Ejector, Booster condenser and a Two Stage Ejector. And Two Stage Ejector consists of a high vacuum ejector, a inter condenser and a low vacuum ejector.   This system will give higher vacuum and can handles larger quantity of condensable vapors. Gas or Gas vapor mixture is discharged from the first stage into the condenser where the operating steam is condensed and gases are cooled. The cooled gases are then entrained by the second stage and discharged into the second inter condenser. Here, the steam used in the second stage is condensed. The gases are finally entrained by the third stage and discharged to atmosphere.   Absolute Pressure Range : Vacuum from 5 MM HG Absolute to 15 MM HG Absolute Four Stage Steam Jet Ejector https://www.jetflow.co.in/four-stage-steam-jet-ejector.htm https://www.jetflow.co.in/four-stage-steam-jet-ejector.htm Tue, 14 Nov 2017 00:00:00 +0530 Four Stage Ejector with Condenser : Four Stage Ejector is having construction and working similar to Single Stage, Two Stage & Three Stage Ejector. When ejector is to be installed at low ambient temperature area, primary booster should be steam jacketed to prevent building up of ice on the diffuser internal bore. Sometimes both primary and secondary boosters are completely jacked to avoid deposition of product inside the ejector.   The Four Stage Ejector consists of following components : Primary Booster Ejector Secondary Booster Ejector Booster Condenser Vacuum Ejector Inter Condenser Low Vacuum Ejector   Absolute Pressure Range : Vacuum from 0.5 MM HG Absolute to 5 MM HG absolute Five & Six Stage Steam Jet Ejector https://www.jetflow.co.in/five-six-stage-steam-jet-ejector.htm https://www.jetflow.co.in/five-six-stage-steam-jet-ejector.htm Tue, 14 Nov 2017 00:00:00 +0530 Five Stage and Six stage Steam Jet Ejectors with Condenser - Five stage and six stage ejectors are designed for absolute pressure in Micron Range. The arrangement of these ejectors is similar to the four stage ejector with additional one or tow non condensing stages.Absolute Pressure Range : In Micron as per customer requirement.   Special Precautions while measuring Low Absolute Pressures : Do not use spring type vacuum Gauges Ensure that the guage tubes are clean and free form contamination Ensure that the guage liquid is clean and free from contamination Steam Jet Air Ejector (SJAE) https://www.jetflow.co.in/steam-jet-air-ejector-sjae.htm https://www.jetflow.co.in/steam-jet-air-ejector-sjae.htm Tue, 14 Nov 2017 00:00:00 +0530 The efficiency of a Steam-turbine is mainly determined by the pressure of the steam at its outlet. The Turbine Surface Condenser is therefore maintained under vacuum. To enable this, the Steam Jet Ejector Vacuum System must be capable of removing all non condensable and associated water vapour from the Surface Condenser to produce the minimum steam condensing pressure consistent with physical dimensions and heat transfer and to provide for deaeration of the condensate.The sources of non condensables include air leakage through all system components operating below atmospheric pressure, gases released from feedwater drains and vents admitted to the condenser, gases released for make-up admitted to the condenser, condensate surge tank when utilized in a closed cycle and disassociation of feedwater into oxygen, hydrogen and non condensables.The recommended design pressure of the Steam Jet Air Ejector (SJAE) System is as follows : For electric generation service : The design pressure is 0.035 ata (25.4 mm Hg (a)) or the condenser design pressure whichever is lower. For Pumps, compressors and other mechanical drives : The design pressure is that for which the condenser is designed minus 0.035 ata (25.4 mm Hg (a)). Usually, the SJAE system is of Twin Element type i.e. of duplex design having two identical Ejectors per stage, one of which, being in operation at any one time and the other as stand-by. The Inter and After Condensers are generally Single Element type.   The System also includes a Hogger / Start-up Ejector with Silencer for fast pre evacuation and which is in operation only till the desired vacuum has been achieved. Thereafter, the two stage holding ejectors take over.   In this field of application, combination units with Ejector and Surface Condenser coupled Liquid Ring Vacuum Pump are also becoming popular. Steam Jet Vacuum System For Vegetable Oil Plant https://www.jetflow.co.in/steam-jet-vacuum-system-for-vegetable-oil-plant.htm https://www.jetflow.co.in/steam-jet-vacuum-system-for-vegetable-oil-plant.htm Tue, 14 Nov 2017 00:00:00 +0530 Vacuum is necessary during various steps of vegetable oil processing. These steps essentially include hydrogenation, fractionation, bleaching, deodorization and de-acidification. Out of all vacuum equipments, Ejector Vacuum System has established the superiority and versatility of their use as compared to mechanical vacuum pumps. The most outstanding advantage of the Steam Jet Ejector is total absence of moving parts which eliminate mechanical breakdown, and assures constant and dependable operation with freedom from repairs. No adjustment or lubrication is required nor are any specially trained operator necessary as their operation is very simple. Over and above, Steam Jet Vacuum System convey at very high velocity which are many times the speed of sound, they are capable f handling large volume under vacuum thus making them eminently suitable for deodorization application wherein high quality of open / sparging steam has to be handled. Steam Jet Thermocompressor https://www.jetflow.co.in/steam-jet-thermocompressor.htm https://www.jetflow.co.in/steam-jet-thermocompressor.htm Tue, 14 Nov 2017 00:00:00 +0530 Large industrial plants often vent significant quantities of low-pressure steam to the atmosphere, wasting energy, water, and water-treatment chemicals. Recovery of the latent heat content of low-pressure steam reduces the boiler load, resulting in energy and fuel cost savings. Low-pressure steam's potential uses include driving evaporation and distillation processes, producing hot water, space heating, producing a vacuum, or chilling water. If the steam pressure is too low for the intended application, a steam jet thermocompressor can boost the pressure and temperature to the required level. Operating Principles - Thermocompressors and ejectors operate on the same thermodynamic and physical principle: energy contained in high-pressure steam can be transferred to a lower pressure vapor or gas to produce a mixed discharge stream of intermediate pressure. These devices are known for : Simple construction Easy installation Long useful operating lives Insensitivity to fouling Low capital and installation costs Easy maintenance with no moving parts If the objective is to recover the latent heat content of the low-pressure suction vapor for process use, the device is called a thermocompressor. If the objective is to pull a vacuum on a process vessel, the device is called an ejector. Boosting Steam Pressure and Temperature with Thermocompressors-Single- or multi-stage thermocompressors are used to boost low-pressure vent steam to a useful higher pressure and temperature. When high-pressure motive steam is available, thermocompressors can be economically used for compression ratios up to 6:1 (absolute pressure of supply steam/suction steam). High-pressure motive steam supplied to the thermocompressor expands in a converging-diverging nozzle to convert pressure energy to kinetic energy. Vent steam supplied to the suction port is entrained into this low-pressure/ high-velocity jet, where mixing occurs. The diffuser portion of the thermocompressor reconverts the kinetic energy of the mixture back into pressure. The intermediate discharge pressure is between the pressures of the motive and low-pressure suction steam. Discharge pressure is determined by the compression ratio (i.e. the ratio of the pounds per hour [1b/hr] of motive In steam supplied to the lb/hr of low-pressure suction steam entrained). Thermocompressor capacity of the device is dictated by the availability of motive steam, motive and suction steam pressure, and discharge steam pressure requirements. Applications include drying and heating, multi-effect evaporators, vulcanizers, reboilers, strippers, condensate receiver tanks, and solvent extraction processes etc. Applications : Check application of thermocompressors where significant venting of low-pressure steam occurs, higher-pressure motive steam is available, and a modest pressure boost could convert waste steam to useful steam. Examine waste recovery potential by determining. Flow rate and pressure of vented steam Flow rate and pressure for sources of motive steam Process or heating needs that can be met by boosting the pressure and temperature of vented steam Equipment size and motive to suction steam ratio Annual energy savings and installation costs of selected device Water Jet Ejector https://www.jetflow.co.in/water-jet-ejector.htm https://www.jetflow.co.in/water-jet-ejector.htm Wed, 12 Jun 2019 00:00:00 +0530 Water Jet Ejectors / Eductor : Water jet ejector uses water as motive force. Liquid Jet Eductors use the kinetic energy of a motive liquid to entrain another liquid,completely mix the two, and then discharge the mixture against a counter pressure and are used in large numbers throughout industry for pumping and mixing operations. Water Jet Eductors consist of three basic components, namely a converging nozzle, a diffuser (or venturi), and a body to hold these parts in their relative positions and to provide a suction (or mixing) chamber. In addition, they can be equipped with accessories such as regulating spindles. Water Jet Eductors can also be staged with higher vacuum steam ejectors. In this case, the eductor serves both as the final pumping stage as well as a fairly good direct contact condenser, condensing the motive steam from the high vacuum steam ejectors. When designing eductors experience is all-important to correctly design the nozzle, diffuser, and body and their relative positions as they are all highly critical and vary according to the physical properties of the liquids being handled. Applications are so numerous, it is impossible to note all of them. General uses include lifting, pumping, mixing, and agitating of liquids as well as handling granular solids and slurries.   Benefits : Low Cost - Units are small in relation to the work they do and cost is correspondingly low. Self Priming - Eductors are self-priming. They operate equally well in continuous or intermittent service. No Moving Parts - Eductors are exceedingly simple and reliabl-e. There are no moving parts to wear or break in a basic eductor. Even when equipped with accessories such as regulating spindles snap valves, float mechanisms, they require little attention, only periodic inspection and maintenance Corrosion and Erosion Resistant - Because they can be made of practically any workable material, or coated with corrosion-resistant materials eductors can be made highly resistant to the actions of the liquids handled or The environment in which located.  Safe - Eductors can be used in hazardous locations where electrically operated alternates would require explosion proofing at considerable cost.  Versatile - Various piping arrangements permit adapting to environmental conditions. Eductors of vanoustypes can handle granular solids, semi-solids, and slurries without contamination. Automatically Controlled - Units can be adapted for automatic control by means of a pressure liquid regulating spindle or a snap-valve and float arrangement. Easy to Install - Connections can be made to suit your piping requirements. Little space is required to accommodate units and they are normally so light in weight they can be supported by the piping to which they are attached. Jet Venturi Fume Scrubber https://www.jetflow.co.in/jet-venturi-fume-scrubber.htm https://www.jetflow.co.in/jet-venturi-fume-scrubber.htm Tue, 14 Nov 2017 00:00:00 +0530 Jet Flow Net Venturi Scrubber is a dependable device designed to entrain and scrub large volumes of gases without the use of complicated baffles or moving Parts. The motivating fluid, generally water, leaves the nozzled in a hollow cone spray, creating a draft which draws the gases and vapores into the moving stream where they are  continuously scrubbed / absorbed while subsequent separation is accomplished in units specifically designed bny, us to meet the state polution control requirement. Liquid Ring Vacuum Pump https://www.jetflow.co.in/liquid-ring-vacuum-pump.htm https://www.jetflow.co.in/liquid-ring-vacuum-pump.htm Tue, 14 Nov 2017 00:00:00 +0530 That Saves Energy Consistent High Performance Jet Flow Two-stage Vacuum Pumps with Their Rugged Cast Iron and Stainless Steel Components, are the Result of An Intensive Development and Testing Program. These Innovative Products Incorporate Modem Engineering Principles, Based On Nearly 25 Years of Experience in Vacuum Technology. all Vacuum Pumps are Subjected to 100% Performance Test Prior to Shipment.Very High Reliability There are No Teflon On Rubber Balls Inside the Pumps to Deteriorate Vacuum Performance, Jet Flow Pumps require very little maintenance. Steam Surface Condenser https://www.jetflow.co.in/steam-surface-condenser.htm https://www.jetflow.co.in/steam-surface-condenser.htm Tue, 14 Nov 2017 00:00:00 +0530 The Steam Surface condenser is a critical component of both the traditional coal fired power plant and the new generation cogeneration and combined cycle power plants. Main duties of any Surface Condenser are to convert the exhaust steam from its gaseous to its liquid state at certain under atmospheric pressure, and also, to release non-condensable presented in the steam cycle, together with vacuum unit.Jet Flow designs and economically sized condenser suitable for smaller turbine ratings under 100 MW. The circular configuration is compact for easy shipping and maintains the level of quality afforded all of our condenser designs.All of Jet Flow’s Surface Condensers are designed and built to the Heat Exchange Institute latest Standards.We also strive to meet all of our client’s project specific requirements. Our Condenser design can incorporate enhanced deaeration systems, and or a variety of turbine exhaust options including Axial and Top steam inlet design, which can assist greatly in improving plant layouts. We continually address and refine these and other considerations associated with circular designs where space is at a premium.Jet Flow Surface Condensers are fabricated in-house state of the art fabrication facilities located in Ahmedabad. All of the fabrication facilities are according toASMEcode and an impeccable reputation for quality fabrication and on time delivery. Our Surface Condensers feature high overall heat transfer coefficient (which result in smaller heat transfer areas and thus optimal use of the available space) and extremely low oxygen concentrations in the condensate. They are designed to stand up to turbine and steam generator overloads and to variations in cooling water temperature at different times of the year.Jet Flow Surface Condenser highlights: Effective steam distribution within tube nest Uniform distribution of heat loading Effective collection and removal of noncondensable gases Negligible condensate subooling Minimized condensate inundation Lower velocity fluctuation Efficient air cooling section Effective de-aeration performance One orTwo passes. Down Flow, Axial flow or side inlet design. 4 to 6 months delivery. Available for all type ofTurbines. Air cooling zone is provided in the coolest part of the condenser, which minimise the carry overof the steam to the ejector vacuum system alongwith the non condensable gases.Geothermal Steam Condensers:Jet Flow has many years of experience designing vacuum Condensers with high non-condensable loads. Since Geothermal steam is highly corrosive and contains large amounts of non-condensable gases, the design and fabrication of Geothermal Steam Condensers is radically different than conventional power plant condensers. Special attention to be given on reduced overall heat transfer rates and LMTD due to high amount of non condensable gases, pressure drop, sub-cooling, flow path for venting large volumes and material selection to prevent corrosion. Associated vacuum system is Multi stage Steam Ejectors with direct OR in-direct type inter condensers. Gland Steam Condenser https://www.jetflow.co.in/gland-steam-condenser.htm https://www.jetflow.co.in/gland-steam-condenser.htm Tue, 14 Nov 2017 00:00:00 +0530 Gland seal systems very important to main and auxiliary turbines.Turbine shafts must exit their casings in order to couple up or connect with the unit that the turbines drive (reduction gears, pumps, etc.) The main and auxiliary gland seal systems enable the turbine to be sealed where the shaft exits the casing; in effect keeping "air out and steam in."The purpose of gland seal system is to prevent the leakage of air from the atmosphere into turbine casings and prevent the escape of steam from turbine casings into the atmosphere.The gland sealing system provides low pressure steam to the turbine gland in the final sets of labyrinth packing. This assists the labyrinth packing in sealing the turbine to prevent the entrance of air into the turbine, which would reduce or destroy the vacuum in the associated condenser. Excess pressure (excess gland seal) is removed by the gland seal unloader.Since there are times when steam escapes from the seals, a gland exhaust system is provided. The gland exhaust system consists of low pressure piping connected to the gland area between the last two outer sets of labyrinths which receives and prevents steam from escaping to the atmosphere. This system collects the steam and directs it to a condenser for further use in the steam plant.Most steam turbines have a shaft sealing system which uses carbon rings to isolate the rotor assemblies on both ends with steam injected to prevent air in-leakage in to the turbine. The leakage would reduce turbine efficiency and flow into the condenser downstream of the turbine further reducing system efficiency. This gland steam must be removed by an ejector or exhaust fan to prevent it from flowing back into the turbine. Heat Exchanger https://www.jetflow.co.in/heat-exchanger.htm https://www.jetflow.co.in/heat-exchanger.htm Tue, 14 Nov 2017 00:00:00 +0530 Principle - A heat exchanger is a device built for efficient heat transfer from one medium to another, whether the media are separated by a solid wall so that they never mix, or the media are in direct contact. Product Range - Fixed Tube Sheet Floating Head U Tube Double Pipe Kettle   Features - Heat Exchanger is available up to Surface area of 2750 m2 Tube sheet thickness up to 150mm Highest sealing get through electronically controlled precision tube expander.   Design Standard and codes - ASME Sec VIII with and without "U" Stamp TEMA ISS 4503 ISS 2825 HEI PED AD MERK   Material of Construction - Stainless Steel Carbon Steel Alloy Steel ADM-Brass Graphite Other Exotic Materials   Design and Manufacturing consideration during Manufacturing of Heat Exchanger Tube to Tube - sheet joint Tube to Tube Sheet Joint -Tube to tube sheet joint has the single objective of sealing against inter leakage between tube side and shell side fluids. The type of tube-to-tubesheet joint to be employed is thus largely dictated by the anticipated difficulty in providing a reliable seal. Factors which influence the evaluation of the difficulty of providing a reliable seal at the tube-to-tube sheet joint include the followingTube to Tube Sheet Joint Leak characteristics of either the tube side or shell side fluids. hydrogen and Dowthern 'A, are typical of two fluids with high leak characteristics. Differential pressure across the tube-to-tube sheet joint. Operating temperature to which the tube-to-tube sheet joint will be subjected. Relative hazard of inter leakage between the tube side and shell side fluids. Frequency and magnitude of cyclic service to which the tube to tube sheet joint will be subjected. Corrosion characteristics and erosive tendency of the tube side fluid. The metallurgy of the tube and tube sheets. Industry preference such as utility, refinery, chemical, petrochemical etc. Differential pressure stress as determined by the difference in operating pressure between tube side and shell side fluids. Axial stresses which may be the result of tension or compression of the tubes. Differential thermal expansion between shell and tubes or between tube passes will develop the axial stress. Similarly tube side pressure will tend to pull the tubes out of tube shell. Differential diametric thermal expansion between the tubes and tube sheet. Differential axial thermal expansion between the tube and the tube sheet with certain tube to tube sheet joint construction. The above briefly summerises factors which influence the selection of a tube to tube sheet joint and stress to which such joint is subjected. The tube to tube sheet joint should be tight against leakage and should have mechanical strength to resist tubes being pulled or pushed out of a tube sheet. Electrical Tube Expander - Uniform Expansion Maximum safe guard to Tube Sheet result to no increase in Diameter or distortion of plate Reduced corrosion hazards Tube elongation reduced to minimum Improved quality of expansion process. Dump Condenser https://www.jetflow.co.in/dump-condenser.htm https://www.jetflow.co.in/dump-condenser.htm Tue, 14 Nov 2017 00:00:00 +0530 Dump Condensers are used to recover large amounts of steam that may otherwise be vented to the atmosphere. During fluctuating steam loads, turbine trip off, turbine start-up,or bypass, the excess steam that would ordinarily be vented can be diverted to a dump condenser. Dump Condensers may also be used for process plants when upset demand conditions occur.A dump condenser is required when the steam consumption needs to be drastically reduced in a very short period of time and when the boiler cannot follow this variation.Features : Water-cooled Dump Condensers Fabrication and design typically to Heat Exchange Institute Standard (HEI), ASME Code, and can include TEMA, Seismic Codes, and other specifications. Designs to eliminate excessive vibrations and water hammer Standard materials are carbon steel with stainless steel tubes. Special materials are available for severe duty or other applications.Dump Condenser can be furnished as a system which may consist of Steam Pressure/Temperature Reducing Station and Condensate Recovery System which includes Level Controls, Condensate Pumps, and Electrical Control Panel for automaticoperation. Dump Tubes https://www.jetflow.co.in/dump-tubes.htm https://www.jetflow.co.in/dump-tubes.htm Tue, 14 Nov 2017 00:00:00 +0530 Dump Tubes are an important part of a system discharging in a condenser. These devices are primarily deployed so as to minimize the size of the bypass valve outlet where the specific volume of steam dramatically increases at low or sub-atmospheric pressures.These dump tubes are normally fitted into the condenser inlet duct and are carefully designed to achieve the final pressure reduction stage and allow the steam to expand and cool prior to entering the turbine exhaust or condenser.It is recommended to ensure that the Ddump Tube is designed properly with respect to size, shape and profile so as to a void interference with the turbine exhaust steam path under normal turbine operation. The arrangement and the size of the holes in the dump tube are selected so as to minimize noise generation and direct the steam path away from the duct walls and towards the condenser inlet depending upon the installation.Depending upon the installation, the arrangement of the holes are selected. In case the Dump Tube is installed in the condenser then the arrangement of the holes are drilled in two 90 degree sectors.This does not allow the steam to go up the turbine exhaust or directly down on to the tubes in the condenser.In case the dump tube is installed in the turbine exhaust then the holes are drilled around the complete circumference i.e.360 degrees.   Operating philosophy: The cooling water required to bring down the temperature is sprayed in the valve or in the dump tube. No water is sprayed in the Condenser. The amount of cooling water quantity is calculated by heat balance calculation. Feed forward logarithm is used in the Distribution Control System Inlet steam pressure, temperature, and the position of the valve give the low rate of steam via the valve characteristics. The required spray water quantity is calculated as the algorithm has pre-programmed steam tables and is compared via the FT Flow transmitter installed in the spray water line or position feed back transmitter. The result is the control signal given to the valve positioner of the spray water valve. The pressure transmitter installed on the dump tube measures the steam pressure in the dump tube. Since the dump tube is a fixed orifice, the signal from the pressure transmitter indicates the flow through the dump tube. Since the dump tube is a fixed orifice, the signal from the pressure transmitter indicates the flow through the dump tube. Condensing System https://www.jetflow.co.in/condensing-system.htm https://www.jetflow.co.in/condensing-system.htm Tue, 14 Nov 2017 00:00:00 +0530 When it comes to the performance of a turbine surface condenser in the operational field of a steam turbine cycle, you need utmost reliability and efficiency. Here’s where Jet Flow’s know how is invaluable. We createcustomise package solutions for each particular customer’s needs.Our General Scope of Supply: Condenser - Circular Condenser having own Flow, Axial flow or side inlet steam entry. Turbine to Condenser steam duct, including necessary expansion joints. Steam Jet Ejector Vacuum System. Flash tank, drain header and Instrument stand pipe. Dump Tube. Condensate Pump system: Pumps are in vertical or horizontal arrangement; either API 610, ISO 5199 or standard manufacturer pump design. Control system: Including level control valves pressure and temperature indicators, transmitters and controllers. Interconnecting piping with filter, fittings and valves. Jet Flow designs, manufactures and supplied overall Condensing System packages involving basic and detail engineering, procurement, testing and delivery. Condensers are manufactured in diverse materials. Tubes are made of carbon steel, stainless steel, Cu and Nickle alloys, Titanium and Duplex. Tube sheets can be solid type or cladded, according to the quality and nature of the cooling water. All components aremounted or prefabricated in our workshop in common or separated steel base frames.Legend: Steam duct and expansion bellow Surface condenser. Armospheric Relief Valve. Condensate extraction Pumps (verticle type) Ejector Vacuum system. Level Control valves. Flash tank. Interconnecting piping. Normal Level Control valve station CEP Minimum recirculation control valve station. Safety Valve https://www.jetflow.co.in/safety-valve.htm https://www.jetflow.co.in/safety-valve.htm Tue, 14 Nov 2017 00:00:00 +0530 Jet Flow Safety Valve represent the most advance technology in value designed for use in intermediate power boiler and organic fluid vaporizer service. Built in conformance to section I of the ASME boiler and pressure vessel code, all capacities am certified by the national board of boiler and pressure vessel inspector at 5% over pressure. Jet Flow Designed Safety Valve with Full Nozzle & hardened disc to minimize maintenance and increase seat life Open bonnet & Close bonnet both design have maximum set pressure 75 bar in Safety Valves. Technical Details : Size Range - 15 mm TO 200 mm Moc - Cast steel,CF8,CF8M,GM End Connection - Screwed End, Flanged End, Butt weld Pressure Rating - 150 class, 300 class Trims - SS 304,SS 316 Design  : Angle Type(Lever operated / without lever) Pop Type (Lever operated / without lever) Open Discharge Type (Lever operated / without lever) Angle type CP Design Standard - API 526 ,520 & IBR Testing Standard - API 527 Flange drilling - ANSI B16.5 Leakage test - API 527 Suitable Application - Steam, Gas, Air, Water, Oil While Enquiry Please Specify : Material of Construction. Set pressure in psig or Kg/cm2 (g). Maximum inlet temperature. Allowable over-pressure. Service-Specify either the media to be handled or the following physical properties or both. Liquids-Specific gravity (Water = 1) Gases-Specific gravity (Air=1) Vapors-Molecular weight (mixture of vapors. The average molecular weight) Back pressure, if any. Required capacity. Type of End-connections. Preferred inlet size. High Pressure Control Valve https://www.jetflow.co.in/high-pressure-control-valve.htm https://www.jetflow.co.in/high-pressure-control-valve.htm Tue, 14 Nov 2017 00:00:00 +0530 High Pressure Control Valve is designed and developed for applications where the high pressure / drop liquid and high pressure / temperature gas/vapour to be handled. Our specially designed Velocity Control Trim, which is a multi turn / multi-stage velocity control trim, handles these  severe/critical applications  very effectively – eliminating cavitation & vibration, and reducing the noise to the acceptable levels.Features: Velocity Control Trim ASME B16.34 design standard Excellent flow control rangeability Linear, equal % and modified linear inherent flow characteristics Leakage rate up to Class VI (as per ANSI/FCI 70-2) Quick Change Trim Design Option End Connection Styles: Flanged Butt Weld Socket Weld Screwed Actuator Options:  Spring return diaphragm type as standard, other actuators viz. Electrical, Electro-hydraulic etc as options.Stem  Packings-  PTFE for temperature up to 230 Deg. C Graphite for high temperature Accessories options - Pneumatic positioners, Electro- Pneumatic positioners, Smart positioners, Solenoid valves, Limit Switches, Air Filter Regulators etc. are available. Plug Options: Unbalanced Metal/Metal Unbalanced Soft seat Direction of Flow: Flowed over Cv Values and Valve Dimensions - Each valve is designed separately based on the given process data, service conditions and pipe line size & schedule. Cv values and valve dimensions would depend on the required no. of turns/stages, flow characteristics & pressure rating, and decided upon case by case basis. Hence, Cv values are not given in this technical bulletin; they would be specified on the calculation sheet and technical specification sheet of each valve. Steam Conditioning Valve https://www.jetflow.co.in/steam-conditioning-valve.htm https://www.jetflow.co.in/steam-conditioning-valve.htm Tue, 14 Nov 2017 00:00:00 +0530 A Steam Conditioning Valve / Combined PRDS Valve is the combination of pressure reduction and temperature reduction of superheated steam to fit process needs, protect downstream equipment or allow the use of less expensive materials or schedules for downstream piping. This is done with a pressure reducing valve and a spray water addition section either as separate units or a single device. Pressure reduction is carried out with a pressure reducing trim within the valve body, usually multi stage pressure reduction. The pressure is controlled by an upstream or downstream pressure controller, signaling the valve to modulate to maintain the pressure at the required set point.Temperature is controlled by adding water to the steam in such away that it will get fully evaporated in the steam, termed as desuperheatmg. These applications are normally considered to be some of the most severe services of any valves in a modem steam plant. A Steam Conditioning Valve  Jet Flow steam conditioning valve with revolutionary multinozzle atomizer and feed forward design adds to our latest generation of quality valves. The equipment is utilised for simultaneous pressure and temperature reduction of steam. The cooling water is introduced in the highest turbulent zone of the steam. High steam velocity at this point, results in the highest coefficient of heat transfer between the steam and water. The feed forward design assures soft misty spray and instantaneous temperature control over the full range of steam flow. For high pressure let-down, pressure drop is taken across concentric flow cages rather than across seating surface, resulting in minimal seat wear. Pilot operated cage design to achieve extremely tight shut of (leakage classification ANSI# V) Balanced design with heavy duty pilot spring greatly improves throttling stability at high pet?P Larger outlet and outlet diffuser options give noise attenuation at optimum design conditions guaranteeing outlets sound pressure level to 85 dBA. Stellited trim increases its resistance to corrosion, erosion by abrasion, galling and sticking. Steam Conditioning Valve Jet Flow steam conditioning valves are available in a variety of combinations. These valves are made as per tailor made requirements of customers. The valves are manufactured in angle, Z and globe forms.  Spray water entry is from the top through hollow stem as well as from the bottom, depending upon the process parameters. Applications are but not limited to: Steam Conditioning Valves Reheater Valves Automatic Re-circulation Valves Superheater Spray Control Valves Boiler Feed Control Valves Start up Steam Vent Valves Spray Water Valves Multi-Stage Multi-Path Pressure Reduction via Velocity Control trim technology: Jet Flow Jet Stack trim has stack of discs and each disc is tailor made for a particular flow path that has a variety of features: OurJet Stack trim technology uses a series of multi-stage multi-path disc stack for successful operation of our valves in severe service conditions.The fluid passes through an extremely tortuous path at right angle turns thereby reducing the fluid velocity and therefore reduces the noise and eliminates erosion and vibration problems. The Jet Stack disc stack is tailor-made as perthe requirement of our customers.The thickness of the wall of Jet Stack trim is such that it ensures maximum tortuous flow path. It ensures the fluid has a uniform velocity and as it passes through the disk it is streamlined. Its design ensures the flow to be distributed evenly throughout the disc. The open flow channel ensures even distribution. Irrespective of flow direction, multi channels are provided. Multi channels evenly distribute fluid around the plug for full stroke thereby ensuring complete control, reliability and stability. Applications: Jet Stack trim has a wide range of applications that demand velocity control and massive pressure drops to be catered to across the valve. It assists in eliminating cavitation and erosion of the conventional type trim designs, reduces velocity, decreases noise and provides stable control over the entire ?ow range of the ?uid. Advantage of Jet Flow Steam Conditioning Valvewith Jet Stack Velocity Control trim and laval jet nozzle - Series of pressure reducing stages are incorporated in the valve that can go as high as 60 for severe service let down applications. This ensures complete velocity control for the full load with noise levels reduced below 85 dBA. Complete tight shut off valve maintaining class V seat leakage. High rangeability of 50:1 as a standard is provided, however, higher turn down of 100: [can also be provided upon request. Minimum wall thicknesses of the body as per the design conditions to minimize thermal stress and shock. Double acting spring return pneumatically operated cylinder piston actuators are provided as a standard. Electric and Hydraulic actuators can also be provided as an option. Complete trim assembly is easy to assemble and disassemble since no welded designs are incorporated. Extremely low maintenance cost with rapid trim change over from top. The trim has a very long life on account of extremely low velocities and with proper use of selected materials. Laval jet atomizing desuperheater incorporated in the valve ensures no impingement of the water on the downstream piping and thereby no need to install expensive thermal sleeves or liners. Substantial savings from the point of installation since the downstream straight length required is extremely short and therefore transition sockets and pipes can be installed very close to the valve. Extremely installation friendly. The valve can be installed in either vertical or horizontal direction. Spray Water Control Valve -It is of extreme importance that steam temperatures are maintained in utility power plant to ensure safe, reliable and ef?cient operation of the equipment. Spray water control valves are the ultimate control elements for superheaters, reheaters, etc. A ?nely balanced steam temperature control valve will ensure trouble-free maintenance of the equipment for longer runs in a utility power plant. Requirements - Gives the exact quantity of spray water as per the control demand for the entire operating range. Valve should be Class-V tight shut-off so that the downstream piping/ equipment  are not damaged. Should be suitable for higher pressure let down applications without internal damage of the trim. Reliable and consistent operation. Fixed Area Nozzle Steam Desuperheater https://www.jetflow.co.in/fixed-area-nozzle-steam-desuperheater.htm https://www.jetflow.co.in/fixed-area-nozzle-steam-desuperheater.htm Tue, 14 Nov 2017 00:00:00 +0530 Jet Flow fixed area nozzle desuperheaters are best suited for applications involving minimal load fluctuations. A fixed nozzle desuperheater utilizes high performance fixed geometry 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 nozzles and discharges into the steam line in the form of a fine mist. In-Line Venturi Steam Desuperheater https://www.jetflow.co.in/in-line-venturi-steam-desuperheater.htm https://www.jetflow.co.in/in-line-venturi-steam-desuperheater.htm Tue, 14 Nov 2017 00:00:00 +0530 A version of single venturi desuperheater has the same operating conditions. can be mounted easily and quickly in the exisiting  pipeline. The unit can be clamped between two flanges. Sizes are  between 1 1/2” to 30” Multi Nozzle Steam Desuperheater https://www.jetflow.co.in/multi-nozzle-steam-desuperheater.htm https://www.jetflow.co.in/multi-nozzle-steam-desuperheater.htm Tue, 14 Nov 2017 00:00:00 +0530 Jet Flow multi orifice desuperheater  regulates the amount of injected water by varying the number of orifices during operation.The ensures that the spray water pressure remains constant at all loads and an excellent and almost uniform spray quality is achieved over the full operating range, thereby minimising the tendency of spray water to accumulate in the steam line.Opening of the orifices is regulated by the positioning of a piston operated actuator directly mounted on the desuperheater.This compact and simple design ensures no separate spray water Injection control valve is required. A high turndown of 50 : 1 is standard. Venturi Steam Desuperheater https://www.jetflow.co.in/venturi-steam-desuperheater.htm https://www.jetflow.co.in/venturi-steam-desuperheater.htm Tue, 14 Nov 2017 00:00:00 +0530 Jet Flow venturi desuperheaters consist of a Laval nozzle which utilises a part of the incoming steam flow to create a reduced pressure zone into which spray water is drawn and atomised by steam energy, and then exits in a short expanding throat which allows pressure recovery.The desuperheating performance remains constant at all loads from 100% or less, because of the atomising steam effect of the steam jet. The design is unique such that the spray water can be supplied at the same pressure as that of the steam pressure. High turndowns are possible depending uponinstallations. Feedwater Heater https://www.jetflow.co.in/feedwater-heater.htm https://www.jetflow.co.in/feedwater-heater.htm Tue, 14 Nov 2017 00:00:00 +0530 The needs of the power generation industry include year-in and year-out reliability, optimum performance for maximum efficiency, and absolute on-time delivery to meet plant outage schedules.All of the Jet Flow Feed Water Heaters are designed in accordance with HEI standards, TEMA and ASME codes. Jet Flow uses state-of-the art computer programs to perform the thermalhydraulic and mechanical design of each Feed Water Heater we fabricate.Jet Flow designs and manufactures both Low Pressure (LP) and High Pressure (HP) feed water heaters which may be installed either vertically or horizontally, depending on the plant design requirements.Each Jet Flow Feed Water Heater will contain from one to three separate heat transfer areas of zones including the Condensing, De-superheating and Sub-cooling zones. Our heaters can be provided with multiple zones within the shell side: Condensing Zone : Included in all heaters,steam is condensedin this zone and non-condensable gases are removed. Drain Cooling Zone : Reduces temperature of drains leaving the condensing zone to below the saturation temperature. Jet Flow is able to provide both fullflow and partial flow drain cooling zones to meet specific plant requirements. DC zones can be applied in any horizontal or verticle heater as needed to meet plant requirements. Desuperheater Zone : Floating design and shielding at the tubesheet minimise thermal stresses. All operating cases are analysed to ensure wet wall conditions are prevented. DSH zones can be applied any horizontal or verticle heater as needed to meet plant requirements. Jet Flow’s engineers are always available to assist you in determining those design parameters and how they will impact performance in your power plant. Jet Flow understand the unique needs of the power generation industry and provides it feed water heaters that withstand years of rigorous service.   Jet Flow Feed Water Heaters are designed for specific thermal conditions and manufactured for a singular purpose. Whether it be sophisticated designs involving extreme superheat, abnormal flow conditions or dissipation of high energy fluids.In addition, Jet Flow provides innovative and practical concepts to ensure peak heater performance from installation to testing through full or part load operation. We offer a multitude of design configuration for de-super heater and drain cooler zones as well as the latest channel closure techniques.All shell & tube heat exchangers, irrespective of the type of service for which they were designed, must withstand severe service conditions. The service life of feed water heaters, however, is one of the toughest because of the longevity and reliability factors inherent in power plant equipment designs. Jet Flow thorough understanding of these factors enhances its ability to communicate clearly with power design engineers. Jet Flow designs enable power engineers to anticipate maximum efficiency from the turbine extraction steam in preheating the boiler feed water.Scope offering: Jet Flow low pressure feed water heaters can be provided in any orientation and contain multiple shell side zones as required to meet the need of the specific plant application. Standard tube material for Jet Flow Feed water heaters is corrosion and erosion resistant austenitic stainless steel. Tubes are expanded in the tubesheet as a standard, but can be welded when required. Jet Flow feedwater heaters are manufactured according to the strict quality standards. Testing and certification by the responsible authorities including IBR are performed in the production facility. Along with the heaters, Safety Relief Valves, Thermal Relief Valve, Level Instruments and Gauges can be supplied. Lube Oil Cooler https://www.jetflow.co.in/lube-oil-cooler.htm https://www.jetflow.co.in/lube-oil-cooler.htm Tue, 14 Nov 2017 00:00:00 +0530 Lub oil reduces friction between moving mechanical parts and also removes heat from the components.As a result, the oil becomes hot. This heat is removed from the lube oil by a cooler to prevent both breakdown of the oil and damage to the mechanical components it serves.The lube oil temperature must be maintained within a specific operating band to ensure optimum equipment performance.Lube oil coolers are designed based on the customer specifications. Designs are available as single coolers or duplex coolers with change over valves.Duplex coolers can be supplied either in standard Horizontal design or vertical design if space is constrains. Turbine Bypass Valves/Systems https://www.jetflow.co.in/turbine-bypass-valves.htm https://www.jetflow.co.in/turbine-bypass-valves.htm Wed, 05 Jun 2019 00:00:00 +0530 Turbine bypass valves play a very major role in Power Plant applications. Within a short period of twenty four hours, a power plant may be required to operate at minimum load, increase to maximum capacity for major part of the day, immediately lower back to minimum load and then back to maximum capacity. Bypass System permit unit start up and shutdown in a lifesaving manner for critical heavy components in boiler and turbines. Jet Flow Bypass valves are supplied with hydraulic, electric or pneumatic actuators as per the process requirements alongwith complete control systems as an option.     Functions:   To perform quick and economic start up, including cold start, warm start and hot start in a lifesaving manner for critical heavy components in boiler and turbine. To operate with the boiler shutdown. To perform warm and hot startup in a short time after a trip i.e. brings the unit back to load To run the unit down to house load. To perform real “two-shift’ operation”. To avoid condensate losses to the atmosphere and reduce the start up noise to the ambient outside the plant.   Applications:   There are two different applications:1) Bypass Systems which are occasionally in operation. Among these there are startup and shutdown conditions and emergency conditions, for example after turbine trip.2) Bypass System which are often or permanently in operation, for example for process steam or heating application.     Actuators:   Bypass valves can be supplied with Pneumatic Piston & Cylinder, Electric or Hydraulic Actuators alongwith power pack and complete control system as per the requirements of the system.   Materials:   For most sizes, casting or forgings in Carbon and Alloy Steel can be supplied. For extremely large sizes, units are fabricated. Bypass Valves are normally supplied with butt weld ends. However, if required can be supplied with flanged ends.     Multi-Stage Multi-Path Pressure Reduction via Velocity Control trim technology:   Jet Flow Jet Stack trim has stack of discs and each disc is tailor made for a particular flow path that has a variety of features: OurJet Stack trim technology uses a series of multi-stage multi-path disc stack for successful operation of our valves in severe service conditions.The passes through an extremely tortuous path at right angle turns thereby reducing the fluid velocity and therefore reduces the noise and eliminates erosion and vibration problems. The Jet Stack disc stack is tailor-made as per the requirement of our customers.The thickness of the wall of Jet Stack trim is such that it ensures maximum tortuous flow path. It ensures the fluid has a uniform velocity and as it passes through the disk it is streamlined. Its design ensures the flow to be distributed evenly throughout the disc. The open flow channel ensures even distribution. Irrespective of flow direction, multi channels are provided. Multi channels evenly distribute fluid around the plug for full stroke thereby ensuring complete control, reliability and stability.     Advantage of Jet Flow Turbine Bypass Valves with Jet Stack Velocity Control trim and laval jet nozzle -   Series of pressure reducing stages are incorporated in the valve that can go as high as 60 for severe service let down applications. This ensures complete velocity control for the full load with noise levels reduced below 85 dBA. Complete tight shut off valve maintaining class V seat leakage. High rangeability of 50:1 as a standard is provided, however, higher turn down of 100: [can also be provided upon request. Minimum wall thicknesses of the body as per the design conditions to minimize thermal stress and shock. Complete trim assembly is easy to assemble and disassemble since no welded designs are incorporated. Extremely low maintenance cost with rapid trim change over from top. The trim has a very long life on account of extremely low velocities and with proper use of selected materials. Laval jet atomizing desuperheater incorporated in the valve ensures no impingement of the water on the downstream piping and thereby no need to install expensive thermal sleeves or liners. Substantial savings from the point of installation since the downstream straight length required is extremely short and therefore transition sockets and pipes can be installed very close to the valve. Extremely installation friendly. The valve can be installed in either vertical or horizontal direction.