Vacunair Engineering Co. Pvt. Ltd Rakhial, Ahmedabad, Gujarat

A balanced cylindrical rotor with hollow hub with series of curved blades running freely in eccentric casing. The sufficient sealing liquid, usually water, forms a solid ring on periphery of casing due to the centrifugal force. Since rotor is rotated in eccentric casing the blade creates working spaces whose volume increases as rotor rotates from lower to upper vertex and decreases as the rotor rotates from upper to lower vertex. The uniform distribution of working spaces on rotor periphery results in continuous suction and exhaust of gases.There is only one rotating part - balanced rotor running with close clearances without any metallic contact with other parts.The Pump has cylindrical control plates having ample area for inletoutlet port fitted with close clearances to the rotor. Axial clearances are not to be maintained and so it is very easy while in maintenance. A fitter conversant with Centrifugal Pump can handle our Vacuum Pump very conveniently. Surprisingly this Pump maintenance is less than an electric motor.

»  AIR HANDLING ENGINEERING is an art, please consult us for your specific air handling needs.     Working Principle / General Information:    » VIV Dampers are designed with mechanical principle of adjustment.  » Inlet guide vanes are synchronously adjustable in the same angular position by a connecting element.  » Adjustment can be made either automatically via an adjusting element from pulse generator by hand. Special Features:    » Energy Savings with fans utilizing variable inlet vanes.  » VIV Dampers are often used for capacity modulation. They give accurate modulation and power savings over other styles of dampers at reduced air flow.  » When an inlet vane is partially closed, each blade directs the air into the wheel in the direction of rotation and so the air is prespun. This brings about a reduction in the Capacity, Static Pressure and BHP. The amount of BHP savings at reduced capacity is determined by the type of system and type of fan-vane combination.  » For every inlet vane position there is different Capacity V/s Static curve and Capacity V/s Brake Horsepower (BHP) curve generated by the fan.  » VIV Dampers are designed with mechanical principle of adjustment.  » Inlet Guide vanes are Sychronously adjustable in the same angular postion by a connecting element.  » Adjustment can be made either automatically via an adjusting element from pulse generator or by hand. Details required for Quotation:    » Application  » Size  » Operation (Manual / Hydraulic / Pneumatic)

Furnace Oil have Viscosity of 1500 Sec Redwood No. 1 at 100 Deg F with a fall in temperature this viscosity goes further up making oil to flow extremly difficult. To meet this demand tank suction heaters have been designed. These heaters are installed at little above the tank bottom. The beauty of the heater is that it does not heat entire tank filled with oil - it only heates the oil that flows through the heater thus cutting down the kilowatt(KW) rating which otherwise may require to heat entire oil tank. The operation is smooth and safe.

In the chambers set in the periphery the impeller, air is accelerated due to centrifugal force created as the impeller turns and is thrown into the next chamber and is again similarly accelerated, thus continuously increasing compression as the impeller turns until it reaches the outlet port.

» Badly ventilated room / work shop can reduced worker efficiency by as much as 30%. Lack of fresh air means tiredness and lack of constriction resulting in more wastage and more accidents. AEROMATIC roof mounted ventilation units counteract exactly these dangers. By improving the air in the work room you improve both the efficiency and output of your workers.  » Applications: All major industries where fumes and heat are produced such as foundries, annealing plants, welding plants, steel drawing works, rolling mills, glass plant, power plant, etc.

»  AIR HANDLING ENGINEERING is an art, please consult us for your specific air handling needs. General Information:    » Pneumatic Conveying Systems can be tailor made to suit exact requirements of any bulk material to be conveyed. The system is enviro-friendly.  » Can offer suction conveying, low pressure conveying, high pressure conveying depending upon the typical nature of the product, conveying rate and the distances  » Can design and offer a system which can be fully manual, semiautomatic and fully automatic. Features:    » Can handle materials like flour of all types, dextrose, clay powder, coal dust, soda ash, plastic pellets, grits, powders, Soya meal/beans, catalysts of all types & sizes, LDPE / HDPE pellets, wood chips, groundnut, paper, plastic & laminate  » Specialists in catalysts loading / unloading for refineries and fertilizer plants. Details required for Quotation:    » Application  » Kind of Material  » Specific Density Of Material : Vertically  » Conveying Distance : Horizontally  

  General Information/Operating Principle: A balanced cylindrical rotor with hollow hub with series of curved blades running freely in eccentric casing. The sufficient sealing liquid, usually water, forms a solid ring on periphery of casing due to the centrifugal force. Since rotor is rotated in eccentric casing the blade creates working spaces whose volume increases as rotor rotates from lower to upper vertex and decreases as the rotor rotates from upper to lower vertex. The uniform distribution of working spaces on rotor periphery results in continuous suction and exhaust of gases.    Special Features:    » LOW ULTIMATE BLANK - OFF Down to 0.1 micron Hg. and less.  » HIGH EFFICIENCY - Even in the low Micron range.  » UNIFORMLY HIGH PUMPING SPEED - Throughout the broad range of 500 to 10 microns.  » RUGGED CONSTRUCTION - Designed and built for long, dependable service, even in severe applications, no special tools needed for maintenance.  » MINIMUM FLOOR SPACE - Unique modular design features compactness saves up to 50% of floor space required by conventional pumps.  » COMPLETELY PACKAGED - Including Separator Tank, Oil Level Indicator, Oil lubrication solenoide valve, Gas ballast, Common base plate, set of pulley, set of vee belt & motor slide rail etc.  » MINIMUM VIBRATION - Controlled balancing of the entire assembled unit reduces vibration to minimum.  » QUITE OPERATION - New valve design virtually eliminates valve maintenance and greatly reduces the noise usually present in high vacuum pumps.  » AUTOMATIC LUBRICATION SYSTEM - As soon as the pump starts, a solenoide valve takes over control of lubrication, providing proper flow of oil to sealing surfaces, When the pump is stopped, the valve prevents back flow of oil into the system. Operation is automatic with no hand valves to adjust.  » EFFICIENT OIL ENTRAINMENT - Exclusive built in entrainment separator substantially reduces oil carry-over and exhaust fumes minimizes oil losses and maintenance costs. Separator is completely integral with pump required no added space.  » PERFORMANCE ASSURED - Rigid quality control throughout production and complete final inspection including blank-off test and run in period are standard. This guarantees that the Oil Sealed High Vacuum Pumps you receive meets or surpasses all performance specifications.   Material of Construction:    » The Pump can be supplied in several materials to suit various applications, some of the materials of constructions are listed below.  » All graded Cast Iron with EN-8 steel shaft.  » Rotor and Control Plates in Bronze with Stainless Steel Shaft.  » All parts in Bronze with Stainless Steel Shaft.  » Rotor and Control Plates in Stainless Steel with Stainless Steel Shaft.  » All Stainless Steel constructions.  » Rubber lined Pump having casing, rotor, control plate and end cover in cast iron but rubber lined and shaft in Stainless Steel.  » Alloy - 20, Cast Alloys, Cast Steel   Applications:    » Chemical Processing: Vacuum Dehydration, Deaeration, Distillation, Vacuum Evaporation, Drying and Filteration.  » Food Processing: Vacuum sealing of bottles, Film Packing, Deaeration of Beverages, Freeze drying of Fruits, Vegetables.  » Agriculture: Vegetables Colling, Grain Drying, Fumigation.  » Petroleum & Petrochemicals: Vacuum Distillation and Refining Crude.  » Plastic: Vacuum Forming, Moulding and Coating of Plastic Materials.  » Textiles: Vacuum Drying, Dying, Material Handling and Solvent Extraction.  » Metallurgy: Vacuum Degassing, Purification, Melting, Heat Treating and Inpregnation.  » Laboratories: House Vacuum System, Chamber Evacuation, Research and Development.    

» COMBUSTION TECHNOLOGY is an art, please consult us for your specific combustion needs.   Working Principle / General Information:    » Low Air Pressure Oil/Gas/Dual Fuel Burners are excellent for High Temperature Furnaces for Steel Plants, Rolling Mills, Non Ferrous Foundries, Rotary Furnaces, Glass and Silicate Industry, Ceramic & Refractory Furnaces and for many more Applications. They are available with several added Instruments for Automatic Operations. Range Capacity:    » 10 to 300 LPH (100 to 3000 KW) Back Pressure:    » Upto ___ mm WG (Max.) Applications:    » Steel Plants  » Rolling Mills  » Non Ferrous Foundries  » Rotary Furnaces  » Glass Industry  » Silicate Industry  » Ceramic & Refractory Furnaces Details required for Quotation:    » Application  » Type of Fuel  » Burning Capacity  » Furnace Size  » Required Temperature (°F Or °C)

» COMBUSTION TECHNOLOGY is an art, please consult us for your specific combustion needs.   General Information:    » Furnace Oil have Viscosity of 1500 Sec Redwood No. 1 at 100 Deg F with a fall in temperature this viscosity goes further up making oil to flow extremly difficult. To meet this demand tank suction heaters have been designed. These heaters are installed at little above the tank bottom. The beauty of the heater is that it does not heat entire tank filled with oil - it only heates the oil that flows through the heater thus cutting down the kilowatt(KW) rating which otherwise may require to heat entire oil tank. The operation is smooth and safe. Range Capacity:    » 1 KW to 200 KW Oil Flow:    » 10 to 3000 LPH Details required for Quotation:    » Application  » Type of Fuel  » Working Temperature (°F Or °C)  » Ambient Temperature (°F Or °C)  » Working Pressure

» COMBUSTION TECHNOLOGY is an art, please consult us for your specific combustion needs.     General Information:    » Oil Preparation - A vital phenomena for the efficient operation of low air pressure and pressure jet oil burner is available as a factory finished units in duplex - semiduplex and simplex versions. They are comprising of oil heater fitted with renuable cantrege type heating element, gear oil pump with motor, oil filters, bail valves, pressure regulating valves and instrumentation. Range Capacity:    » 1 KW to 200 KW Oil Pressure:    » 1 Kg/cm2 for LAP Burner  » 15 Kg/cm2 for Pressure Jet Burner Details required for Quotation:    » Application  » Type of Fuel  » Working Temperature (°F Or °C)  » Ambient Temperature (°F Or °C)  » Working Pressure          

» COMBUSTION TECHNOLOGY is an art, please consult us for your specific combustion needs.   Working Principle / General Information:   » Fully Automatic Pressure Jet Oil / Gas and Dual Fuel Burners have Matchless Performance for Steam Boilers, Thermic Fluid Heaters, Hot water Boilers, Air Heaters, Asphalt tanks and Aggregate hot mix and Recycle road making machinery plants. These Burners also serve Incineration Plants. Range Capacity:   » 130 KW to 1500 KW Back Pressure:   » Upto 100 mm WG (Max.) Applications:   » Asphalt Tank Boiler » Batch Mix / Hot Mix Plant » Steam Boiler » Thermic Fluid Heater » Hot Water Generator » Direct/Indirect Air Heater » Calcinations Furnace » Incineration Plant » Bakery Oven » Various Furnaces/Ovens » Rotary Dryers Details required for Quotation:   » Application » Type of Fuel » Burning Capacity » Furnace Size » Required Temperature (°F Or °C)

 »  AIR HANDLING ENGINEERING is an art, please consult us for your specific air handling needs.   PLC based automatic Flux Supply & Recovery Unit:    » Flux supply & recovery unit is working based on vacuum and high pressure pneumatic conveying system.      » This system is divided in three assemblies.1. Flux recovery and conditioning assemblyThe flux recovery is based on vacuum conveying system. the additional flux supplied to the welding point will be recovered with use of vacuum conveying and will be stored at recycle flux storage vessel. the dusty air will pass through the reverse pulse jet type filter cleaning arrangement and clean air will be exhaust of to the atmosphere.The recycle flux will be reconditioned with the help of 3 stage flux conditioning unit. the first stage will remove the large slugs particles collected during the suction. the second stage will remove the magnetic particles from the collected flux. the third and final stage will remove the dust particles from the collected flux.The collected flux will be mixed with new flux through flux management system. we had provided two types of flux management system, one is one-by-one timer control system and other-one is online flow control mixing system.In one-by-one timer control system, the new flux and recycled flux will be mixed with the help of set-up timers which can be set in the hmi panel. this mixing ratio can be varied from 20% to 50% new flux to the recycle flux with the use of time control system. in this system, first we will allow to collect recycle flux, then after new flux. such cycle can be repeated depends upon requirements.2. Flux supply assemblyThis mixture of the flux will be transferred to the set of flux supply tanks. these tanks are provided with periphery type surface heater to maintain the temperature of flux to be supplied for the welding purpose. this flux will be transfer through pressure conveying system.

Flux supply & recovery unit is working based on vacuum and high pressure pneumatic conveying system.The flux recovery is based on vacuum conveying system. the additional flux supplied to the welding point will be recovered with use of vacuum conveying and will be stored at recycle flux storage vessel. the dusty air will pass through the reverse pulse jet type filter cleaning arrangement and clean air will be exhaust of to the atmosphere.The recycle flux will be reconditioned with the help of 3 stage flux conditioning unit. the first stage will remove the large slugs particles collected during the suction. the second stage will remove the magnetic particles from the collected flux. the third and final stage will remove the dust particles from the collected flux.In one-by-one timer control system, the new flux and recycled flux will be mixed with the help of set-up timers which can be set in the hmi panel. this mixing ratio can be varied from 20% to 50% new flux to the recycle flux with the use of time control system. in this system, first we will allow to collect recycle flux, then after new flux. such cycle can be repeated depends upon requirements.

Centrifugal Air Blowers Fans are a new concept in Fan Engineering. Each type 14 to 40 has different specific speed for best efficiency. Each type has various sizes selected from basic log series of preferred numbers. This has made it possible to select the best type and size for a given speed, capacity and pressure. Selection of SWSI DWDI Multistage is based on specific speed for a suitable type for best efficiency.

» Bifurcated Fans specially designed for handling hot, corrosive gases. The drive direct / vee belt is totally isolated form gas stream  » Applications: Chemical, fertilizer, paper plants, etc.   Accesories:  » SILENCER: For applications requiring quiet operation, customs built attenuation packages can be provided on the fan inlet or outlet. attenuators are aerodynamically and are designed to significantly reduce noise while adding only minor resistance to air flow. Variable Inlet Vane: For frequent continuous volume control, a variable inlet vane can be provided. Variable inlet vanes are available for each specific fan size and are bolted to the fan's flanged inlet. The vane action during dampering works to spin the air in the direction of the wheel rotation this resulting in lower power consumption. Vane mechanism is outside of the air stream and is controlled buy a single vane lever. Variable inlet vanes can be set up for manual or automatic operation. The variable inlet vane's inlet is flanged and drilled to accept ductwork or and inlet bell as the system requires. Bird Guard: Safety screening can be provided for installation in the fan inlet, fan outlet, cone or belt. Spark-Resistant Construction: Belt Drive / Direct Drive with Spark-Resistant Construction are available. Inlet Bell: For systems with not ductwork on the fan inlet, it is advantageous to install an inlet bell is a torosoidal shape to avoid inlet losses. The inlet bell is a torosoidal shape to provide a smooth entrance to the fan. Inlet bell are flanged and drilled to mate up with the fan's flanged inlet. Inlet/Outlet Cone: Transition pieces, called cones, can be provided for both the inlet and outlet. Cones are provided to adapt from the fan diameter to the adjacent ductwork diameter. Cones are flanged on both ends and drilled to mate up with fan's flanged. Cones are available with an access door if required. Outlet cones can be utilized to affect performance and transform velocity pressure into static pressure. Companion Flanges: For ease of installation of adjacent ductwork, companion flanges can be provided. Flanges are rolled angle rings, drilled to match the fans inlet or outlet flanges.   Details required for Quotation:    » Application  » Gas to be handle  » Capacity (M3/Hr Or CFM)  » Pressure (inch WG Or mm WG)  » Working Temperature (°F Or °C)  » Type of Drive

 » Axial Flow Fans are available in Capacity: Up to 3,00,000 M3/hr Pressure: Up to 100 mm of WG.  » To achieve high efficiency, fans have a defined hub ratio of 75 to 25 for given capacity, pressure and speed  » Impeller blades are adjustable type and can rest at designed angle to suit the system resistance  » Fan can run in parallel to suit capacity and in series for higher pressure  » Impeller is made of aerofoil profile from cast aluminum alloys  » Bifurcated type fans are available for handling corrosive gases  » High efficiency can be achieved due to wide selection of sizes, hub ratio, number of blades and pitch angle                                  

Description:    » Series HF AEROMATIC High Efficiency Centrifugal Air Blowers / Fans are a new concept in Fan Engineering. Each type 14 to 40 has different specific speed for best efficiency. Each type has various sizes selected from basic log series of preferred numbers. This has made it possible to select the best type and size for a given speed, capacity and pressure. Selection of SWSI / DWDI / Multistage is based on specific speed for a suitable type for best efficiency. Special Features:    » Series of high efficiency fans are a new concept in fan Engineering. Each type 14 to 40 has different specific speed for best efficiency  » Can handle Air / Hot flow gases / Corrosive gases / Dust / Fiber / Powder material  » Unique bearing pedestal design for longer bearing life / easy alignment  » Impeller is backward curved / backward inclined / radial / forward curved selected to suit the application. Impeller is dynamically balanced  » Single / Multi stage design Material of Construction:    » Carbon Steel  » Stainless Steel  » Aluminium  » Rubber Lined  » Epoxy Painted  » Fiber Glass Lined  » Clorinated Rubber Painted  » Corrosion and Acid resistant fans  » Wear protected fans  » Explosion protected fans  » Gas tight fans  » Poisonous and Risky gas fans Bearings:    » Ball Bearings  » Roller Bearings  » Oil Lubricated Bearings  » Grease Lubricated Bearings  » White Metal Lined Bush Bearings  » Water Cooled Bearings Shaft Seals:    » Metal Asbestos Seal  » Labirinth Seals  » Packed Stuffing Box  » Stuffing Box with Intermediated Pressure Relief Chamber Housing:    » Steel fabricated welded construction braced with steel flats and angles. Split casing can be provided for large sizes. Inspection door and drain plug can be provided. Impeller:    » Impeller can be made in light, medium and heavy construction Class I, II and III.  » Steel or Cast Iron hub will be welded, bolted or rivetted.  » Impeller will be Statically and Dynamically balanced. Shaft:    » Shafts are on EN - 8 steel properly sized to keep away from critical speed. Bearing Life:    » Bearings are designed for Long Life. This life can be attained when properly lubricated, kept clean, tensioning belts correctly and keeping Impeller clean and balanced. Smaller vee pulleys and improper belt tension reduces the life considerably. Proper care and lubrication increase the life beyond this. Vibration isolaters and flexible connection at inlet and outlet can be minimise transmission of vibration and noise to building structure and ducts. Applications:    » For Handling Air  » For Handling Hot Flue Gases  » For Handling Dust  » For Handling Air  » For Handling Fibres Material  » For Handling Corrosive Gases Details required for Quotation:    » Application  » Gas to be handle  » Capacity (M3/Hr or CFM)  » Pressure (inch WG or mm WG)  » Working Temperature (°F or °C)  » Type of Drive