Our Products
Principle of Operation :
A Typical two-bed DM Plant consists of two MS Rubber lined Pressure vessels connected in series along with its internal fittings. The first unit consists of high capacity strongly acidic cation exchange resin, which converts positive ions of salt and replaces them with hydrogen ions to form respective acids, which are absorbed in next vessel by strongly basic anion exchange resin. The water obtained by this process shows conductivity less than 20 µ S / cm at 25 Deg C and total dissolved solids less than 10 ppm.
Further high purity water can be achieved by Mixed Bed Deionisers, which are designed to produce high purity treated water. They can be used as polishing units after two bed DM Plant to obtain high purity water. Mixed Bed Deionisers are single column units, filled with strongly acidic cation and strongly basic anion exchange resins mixed together.
There are four distinct stages in the operation of Deionisers
Service :
In the Service cycle the water enters the vessel and passes through the Resin bed of the respective exchanger.
Backwashing :
After the resins are exhausted, the bed is backwashed. Backwashing is carried out by a uniform upward flow of water through the resin bed. The backwash step expands the resin bed releasing any entrapped particulate matter & removes the channeling in the resin column if occurred during the service cycle.
Regeneration :
When the ion exchange resins loose all the exchangeable ions, they require regeneration to restore them back to hydrogen or hydroxyl form depending upon whether they are cation or anion resins. To achieve this 4 - 5% concentrated solution of Hydrochloric acid is used for cation resin and a 4% - 5% concentrated solution of caustic soda for anion resin.
Rinse :
The final stage of regeneration is to rinse the resins of excess regenerant
Technical Details
Item | MOC | Service |
---|---|---|
EJECTOR | MS with Ebonite / PP / HDPE lined | For ACID / Caustic Resin / carbon charging |
Fume Absorbers | PP with FRP Coated | Acid storage and measuring Tanks |
Acid Proof level Gauges | Polyproelyne | Acid / caustic storage tanks/measuring tanks |
MSRL PIPES | HARD / Soft rubber lined | For corrosive service |
HDPE Lined MS Pipes | MS + HDPE | For corrosive service |
PP lined steel pipes | MS + PP | For corrosive service |
MSRL and Rubber covered Measuring Tanks | MS with rubber lined and rubber covered | Acid / Caustic |
Middle collector Headers | Rubber line & Rubber covered Stainless steel | SAC / SBA/MB |
Laterals | Stainless steel / PVC / PP | SAC / SBA / MB |
Lateral Strainers | Polyproelyne | SAC / SBA / MB |
Single Decker & Double Decker Strainers | Polyproelyne | Bottom collecting for SAC / SBA / MB |
Resin Traps | SS 316 with fine SS wire mesh | SAC / SBA / MB |
The obvious advantage of Air cooled fluid cooler is that it does not require any water after its first charge. This is completely a closed circuit system. The hot fluid (water) from the source is made to pass through finned surface heat transfer coils & using the heat is rejected to ambient air passing through coils using axial fans.
Advantages :
GT Radiators cooling coils (12 nos. x 10 mtrs long ) supplied to ntpc, dadri gas based power plant
Applications :
Operation :
Air-cooled Fluid Cooler is High Efficiency dry cooling system. Air cooled fluid coolers works on principle of rejecting heat from hot fluid to ambient-air directly through heat transfer coils. This is in contrast to conventional method of cooling using shell & tube heat exchanger & wet cooling tower system.
Advantage Of Ultra Filtration Systems :
UF System At Essar Power Limited, Hazira
2 X 130 M3/hr Capacity Uf Systems Installed At Essar Power Ltd.
For Cooling Tower Blow Down Water Recovery System
The Scope of supply and St TV ices comprises :
What is Cast Basalt
Cast Basalt is a mineral of exceptionally high abrasion resistance, unlimted resistance to moisture, high compressive strength and resistance to virtually all acids and alkalis and is completely corrosion free.Cast basalt is produced by melting selected natural basalt broken into sizes of 20-50 mm in shaft furnaces at tempreatures around 1, 300C, following by casting at which the metled basalt forms uniforms pherolithic crystals hence producing its typical physical propertics, in particular its exceptional hardness and wear-resitance.
Cast basalt reaches a value of hardness of 8( min ) on the Moh's hardness scale. for comparision : the highest value10is only attained by dimonds. by virtue of these properties, the silicate cast basalt provides outstanding protection against abrasion and scrubbing.
However, it is marked by asertain sensitivity ti impacts.Under Normal services conditions, cast basalt withstands tempratures up to approx.+ 350C or-40C. However Cast basalt sholud not be subjected ti temprature shocks.
Sizes : Cast basalt produces are manufactured as tiles, from pieces and segments. straight pipes are spun-cast, available for nominal bores of 32 to 600 mm with the wall thickness ranging from 20 to 30mm and a standard lenght of 500mm.samller nominal bores of straight pipes, pipe segment for radill of 40 to 3, 000mm of vatrious angles, as well as special formpiece linings are pre dominately sand-cast. The standard wall-thickness is 20mm. depending on the respective quantity, steel moulds can also be used, the wall thickness in those cases usually being 30 to 40mm.
Ceramic Lined Equipment and Bends :
Hard & Compact Smooth & Inner Withstands High-Abrasion & Corrosion In any of the process industries especially Sled and Cement corrosion and abrasion lead to ignificant downtime of the plant. Further, the useful life or the equipment itself may get impaired because of the high abrasive nature of the materials being used. Thus, 'wear mechanism' results in hutdown, replacement, etc., which is costly, resulting in loss to tilt: tunc of mi llions of rupees.
Characteristics :
Comparision Chart
Comparison of Ceramic lines with few other materials under standard conditions : | ||
Material | Thickness(mm) | Approx life ( Months ) |
Mild Steel | 10 | 03/05/19 |
Cast Iron | 20 | 06/08/19 |
Ni-Hard | 20 | 12/14/19 |
Cast Basalt | 30 | 20-25 |
Ceramic | 10 | 35-40 |
Longer Equipment Life With Cast Basalt :
Our Ejectors deliver chemicals more safely and with greater precision and reliability than traditional delivery methods. There is no moving parts, ejector system is also a safe system because the injected material is not under pressure. If the water flow stops, injection stops instantly. Our ejectors are able to run dry with no problems and because they are made with special lined material & they last longer.
The system uses differential pressure between inlet and outlet ports to create a vacuum, which draws chemicals through the suction port. Internal mixing vanes help ensure even distribution and installations do not require a pump or motor.
These systems are fabricated using superior quality raw material and possess following parts and features
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We offer a wide range of Skid Mounted Chemical Dosing System which is a proper solution for chemical dosing problems.
These systems are fabricated using superior quality raw material and possess following parts and features :
Our Ejectors deliver chemicals more safely and with greater precision and reliability than traditional delivery methods. There is no moving parts, ejector system is also a safe system because the injected material is not under pressure. If the water flow stops, injection stops instantly. Simple to use and self-priming, Our ejectors are able to run dry with no problems and because they are made with special lined material & they last longer.
The system uses differential pressure between inlet and outlet ports to create a vacuum, which draws chemicals through the suction port. Internal mixing vanes help ensure even distribution and installations do not require a pump or motor.
Polypropelyne Lined Steel Pipes For Corrosive Fluid Handaling
Pipe & Fitting Specifications : Pipe materials for pipe spools shall conform to one of the material specifications described below in accordance with the customer's piping specifications :
Flange Specifications : Flanges confirming to ANSI / BS10 / DIN or any other international standard will be supplied in Mild steel, Carbon steel, Stainless Steel. Standard flanges are Slip-on type and Lap-joint type flanges and will be provided if requested at the time of making an offer.
PP Liner Specifications : The polymer resin shall meet the STM Standard Specifications and our standard PP liners are unpigmented and natural white color. The colored liners are available if specially requested.
Fitting Availability : Standard fittings include 90°C Elbow, 45°C Elbow, Reducing 90°C Elbow, Equal Tees, Reducing Tees, Instrument Tees, Concentric Reducers, Eccentric Reducers, Laterals and Cross for 1" (25mm NB) through 8"(200 mm NB) diameter.
Non - standard fittings such as double and triple branch tees, other special shapes are available per the customer's requirements.
Testing and Inspection :
Storage and Handling Requirements :
Technical Details
Nominal Pipe Size | Liner Thickness(Min.) | ||
---|---|---|---|
Inch | Millimeter | Inch | Millimeter |
1 | 25 | 0.15 | 3.8 |
1-1/2 | 40 | 0.15 | 3.8 |
2 | 50 | 0.177 | 4.5 |
2-1/2 | 65 | 0.177 | 4.5 |
3 | 80 | 0.177 | 4.5 |
4 | 100 | 0.209 | 5.3 |
5 | 125 | 0.236 | 6 |
6 | 150 | 0.24 | 6.1 |
8 | 200 | 0.283 | 7.2 |
10 | 250 | 0.283 | 7.2 |
12 | 300 | 0.283 | 7.2 |
Rubber Lined Vessels, Tanks, Piping etc.
Rubber lining :
Surface Preparation :
This is very important process for rubber lining. The surface of the metal must be free from oil, paint, scales, rust etc. this is generally removed with the help sand blasting/ shot blasting. After the surface is cleaned, adhesive or bonding agent is applied to surface. Two or three coats are applied, as adhesion is an important process for rubber lining.
Preparation of rubber sheets :
The rubber compound is manufactured as per the requirements after looking in to the chemical and other conditions of the process. Rubber sheets are made on calendar machine in different plies. Lining up to 6 mm thickness can be applied in single layer. If the thickness is more, it is applied in 2 or more layers. For Pipes & fittings Extruded rubber tubes are inserted in the Pipes.
Application of rubber sheets :
Un vulcanized rubber sheets, which are prepared on the machine are applied on to the adhesive coated, half dried surface under slight pressure of hand or with a metallic roll as well as with the help of various lining tools. We have to ensure that no air gets trapped between the metal surface and rubber sheet. Joints are made levels and joind with help of knurling tools.
Vulcanization :
By and large vulcanization is carried out in an auto clave. This is the process by which rubber changes from plastic state to elastic state. The temperature and pressure depend upon the rubber compound and thickness of lining. Large size equipments, which are rubber lined at site, are vulcanized By open steam as well as by hot water curing, the temperature is maintained to get the rubber cured and for this method special compound of rubber is to be manufactured for this process.
Testing and Inspection :
All the rubber-lined items must be tested before and after vulcanization. This is to ensure that they are free from faults, Which might cause failure of the equipment. Visual inspection in good light is carried out to check mechanical damages blisters and poor joints. There after spark test with a high voltage is carried out to check mechanical damages, pin holes, blisters and poor joints. Hardness test is MUST for rubber lining. Knocking test is also carried out by an experienced hand with the help of Wooden hammer to check whether there is any poor bonding.
Protection of rubber lining equipments :
The vessel should be stored away from sunlight or it should BE covered by tarpaulin or some, other device. This will avoid direct sunlight, which may affect the surface due to the presence of ozone. The vessel should be filled up with water when not in use for longer period.
We are supplying all the spares required for D.M., Softening and filteration plant of Any make.
We are supplying following spares.