Toshniwal Instruments (Madras) Pvt. Ltd.

Kilpauk, Chennai, Tamil Nadu

V-Cone Flow Meter is an advanced differential pressure instrument, which is ideal for use with liquid, steam or gas media in rugged conditions where accuracy, low maintenance and cost are important. The V-Cone is designed for todays most challenging oil / gas production, chemical, food & beverage, plastics, pharmaceuticals, district HVAC, textile, power and water & wastewater applications. It combines exceptional performance, low maintenance and long life for superior value.

• Line Size Range: 0.5 to 120 or larger
• Accuracy: +/- 0.5% Repeatability: +/- 0.1%
• No moving parts
• Patented Differential Pressure Flow Meter Technology
• Does not require long lengthsof straight pipe before and after meter
• Remote monitoring
• International Manufacturing Standards
• ATEX variants available
• Useful in tight-fit and retrofit installations.

V cone meters have no moving parts and their unique design enables the meter to work perfectly even when the measuring media has particulates such as Sand and dust. The patented cone design gives the V cone the ability to work with short lengths of pipes in front and after meter.

• Helium Custody transfer
• Compressor monitoring
• Replacing turbine meters in Alcohol/Spirits manufacturing
• Flow measurement of Saturated Steam in a continuous process (Power/Chemical sector).
• Natural Gas measurement
• Maintenance free operation of Raw water wells.

This meter utilizes the Coriolis force for flow measurement. The omega loop has proven itself particularly suitable for this process. The measuring tubes, which are bent to omega loops, are completed by two measuring bars and vertically secured torsion bars to create a harmonious oscillator. This carefully balanced and robust design has an extremely low power input. The frequency of the system essentially depends on the mass of the bars and the elasticity module of the torsion bars. Two electromagnetic coils set the system in motion. As soon as liquid or gas flows through the oscillating omega tubes, the resultant Coriolis force causes displacement of the tubes. The comparative relationship is established and the change in displacement is proportional to the mass flow.

• Mass Flow Range: .004 kg/min all the way up to 25, 000 kg/min.
• High accuracy, versatility and repeatability
• Hastelloy, Tantal and SS material of construction available
• Pressure up to 890 bar
• Temperature range: -2000C to 4000C

• Custody Transfer of Mineral Oils, Bitumen and other viscous media

Coriolis Mass Flow Meters are well known for their accuracy and versatility for medium to (very) high flow rates. Bronkhorst, however, specializes on applying the Coriolis flow measuring technique on (very) low flow rates. Engineers in laboratories, universities, industry, production and pilot plants with very different requirements already discovered the possibilities and advantages of applying Coriolis Mass Flow Meters for low flow rates.

• Direct mass flow measurement, independent of fluid properties
• High Accuracy, Excellent repeatability
• Integrated control functionality for dosing purposes or other applications where liquid flow, but also gas flow, must be accurately regulated
• Compact design, with integrated PID controller for fast and stable control
• Now suitable for (very) low flow ranges
• Digital technology allows fieldbus communication and offers user configurable control characteristics
• For areas or installations with risk of explosion, ATEX Zone 1 and 2 solutions can be offered.

Bronkhorst Coriolis Mass Flow Controllers are used extensively in different Industrial and Research sectors where accurate (low-flow) control of fluids is critical to process. Here are a few examples:

• Dosing a platinum catalyst into a process plant
• Liquefied petroleum gas measurement in a research laboratory as a preliminary test for production
• Dosing of supercritical fluids (e.g. CO2) into reactors
• Accurate dosing of liquid additives, e.g. colorants, plasticizers, stabilizers and processing aids
• Surface treatment of plastic textiles, food and beverage packaging, parts for the automotive industry, etc. by means of vapor delivery systems

The range of Thermal Mass Flow Meters from Bronkhorst address high accuracy in low flow rate scenarios like those seen in laboratory and Pilot plant usages. With a housing designed for laboratory and clean processing conditions, the instruments are truly unique in their capability to measure and control flow ranges between 0, 0140, 7 mln/min and 81670 ln/min with pressure rating between vacuum and 400 bar all in one range of instruments.

• Rangeability in digital mode up to 1:150
• High accuracy (standard 0, 5% Rd plus 0, 1% FS)
• Pressure ratings 64 / 100 bar
• Highly resistant to mechanical shocks and pressure fluctuations
• Large range of Input/output options to choose from
• Extremely fast and dynamic response
• User configurable control characteristics

• Analytical/environmental equipment
• Gas flow monitoring in food, chemical and petrochemical industries
• Gas consumption measurement in gas distribution systems for internal accounting purposes
• Detection of gas leakage through objects
• Semiconductor manufacturing
• Surface treatment installations

Our range of VLIs can provide an optimal solutionfor almost any level measuring and controlapplication. For most applications, a suitableindicator can be configured from standardmodular components. Special solutionsare frequently needed for unusualoperating and installation conditions. We cover an extremely wide rangeof special level instrumentation requirements.If necessary, the standard interfacescan be adapted to match the requirementsof customers control systems.

• Very wide operating range: Vacuum to 500bar pressured tanks, up to 0.3g/cm3liquid densities, 77K to 673K operating temperatures
• Available with Level Indicator, Level Switch and Level transmitters for remote monitoring and control
• The operating principle is based on the use of permanent magnet system ensuring safe and reliable activation of visual indication elements or transducers
• Magnetic elements used can withstand high temperatures with negligible degradation of magnetic flux.
• Lightweight and hermetically sealed floats ensure smooth usage for dirty and high viscous liquids over large indication ranges.
• Closed and Open floats are available for various pressure ranges

We have many years of practical experience in the use of WEKA VLI Level Indicators in:

• Chemical and other process industries
• Shipbuilding
• Thermal Power Plants
• Hydraulic systems
• Railways
• Vehicular applications
• Petrochemical industries
• Refrigeration systems

This is a compact instrument used to inject small doses of additive liquids to primary fuel-based liquids to enhance their performance. Build into a single, compact stainless steel block, the Injection blocks employs the Oval gear design to accurately measure and release known doses of additive fluid to main fuel stream using a solenoid valve.

• Compact Stainless steel block
• High quality, Great accuracy and reliability
• Economical and easily installed
• Approved by Weights and Measures Authority (India)
• ATEX/ PESO approved Explosion proof electrical instruments
• Detachable components for servicing

Injection of liquid additives like

• Anti-freeze agents
• De-carbonization agents
• Lubricants
• Combustion enhancers
• Dosing and packaging

Toshniwals GL series Vacuum pumps are double-stage, Oil sealed, belt driven pumps operating under the rotary vane pump principle with a gas ballast valve. With a very large installation base across India, the GL series is known for its rugged construction and reliability. The pump excels in dry air evacuation for high vacuum applications.

• Pumping Capacity Range: 36 m3/hr to 300 m3/hr
• Ultimate Pressure: 1.33 x 10-3mbar
• Advanced lubrication system
• Water cooled
• Guaranteed ultimate vacuum
• Rugged construction delivering high reliability
• Relatively quieter operation

The GL series are most commonly used for:

• Filtration, Distillation and dehydration processes
• Exhausting Electronic tubes
• Backing pump for Thin Film Coating processes
• Vacuum metallurgy applications
• Vacuum Sublimation
• Vacuum Impregnation process
• Freeze drying of foods and drugs

For substrates with a highly structured wafer topography, deep MEMS structures or a non-planar surface texture, the iSPRAY-300 by SAWATEC ensures that the coating is as homogeneous as possible. It is a high-precision spray coater for manual spray coating or spray development processes and it is used specifically in research and development laboratories, for pilot productions and small production units in MEMS fabrication.

• Up to 50 programmes with 24 segments each can be programmed.
• Ouick start function for repeat processes.
• User-friendly process configuration with touch screen panel.
• Process parameters: spray pattern, spray arm speed, spray time, spray beam cone.
• Electrically operated spray arm with selectable speed in the direction of the x-axis and the y-axis.
• Adjustable spray nozzle with constant nozzle pressure and automatic cleaning function.
• Control elements for dispensing compressed air and vacuum.

SAWATEC supplies various hotplates for typical soft bake and hard bake processes in lithography, MEMS and similar applications. Outstanding features of the manual hotplates are their robust design and ease of operation. The extensive HP series can be used for wafers up to 300mm or 12x12 inch substrates.

• Temperature control with digital target and actual value display.
• Automatic temperature limit switch, no overheating.
• Hotplate with safety glass, easy cleaning.
• Easy leveling of the hotplate, prevents discharge of photo-resist.
• Manual substrate fixation via vacuum.
• Manual loading and unloading of the substrates.