Faucet Engineering

Vikas Puri, Delhi

Description :

• Portable hand held ultrasonic flow meter is a kind of portable flow meter by hand-hold type. The handheld flow meter utilizes advanced ultrasonic transit-time clamp-on technology and digital signal processing techniques. This design can provide abundant capabilities for high accurate liquid flow measurement.
• The main unit of the handheld ultrasonic flow meter is very light and the clamp-on transducers are also easy and simple to install, so it is very easy to operate, too. With the non-intrusive nature of the clamp-on technique, the portable flow meter has no pressure drop, no moving parts, no leaks, no risk of contamination, no risk of corrosion, not pressure loss, and etc.

Features :

• High accuracy. ±1% or better in velocity.
• Large pipe size range from DN20 - DN6000mm (3/4"240")
• Almost suitable for all commonly used pipe materials
• Wide flow range (-16m/s16m/s), bi-directional
• Easy and low-cost installation. No need for hole drilling, pipe cutting, etc.
• Non-intrusive. No pressure drop, no pipe disturbance
• Low maintenance
• Signal quality tracking and self-adaptation to match pipe and fluid variations
• Rechargeable battery for 10 hours of operation.
• With a built-in data logger
• Ideal for clean and opaque liquid flow

Applications :

• Water flow survey
• Water conservation management
• Power plant monitoring, and other closed-pipe applications where non-intrusive measurement is required.
• Hot/chilled water, city water, sea water
• Sewage and drain water
• Beverage, food, water/glycol solutions, and other liquids.

Features :

• Large flow capacity and small pressure lose.
• High quality material applied to guarantee its function efficient and reliable.
• Magnet-drive, dry dial, protected by the cover, forever clean and legible dial for reading.
• Register may be rotated through 360^o.
• Removable mechanism is easy to replace or fix and not required detaching the body from the pipeline.
• Pulse emitter can be installed to this type for remote reading(option).

Details :

• Open Channel Flow Meters are useful for measuring flow in Canals, Weirs or any type of open channels where flowing media is not enclosed in any type of pipe.
• We are using Ultrasonic Transmitter to measure the flow in Open channel for Non contact type Flow measurement. Ultrasonic type Open channel Flowmeters are easy to install in any channel and are having non-contact operation which makes them less vulnerable to atmospheric effects and mechanical wear & tear.
• The direct measurement of this series is liquid height of channel and flume. For flow measurement in open channels, installation of weir and flume on the channel, it makes the flow change into level. After measured the level in the weir and flume, then calculate the flow according to corresponding connection of level- flow.

Advantages :

• Non contact Type
• Indicator Unit can be Located up to 100 meters from the Sensor Location
• Flow Measurement in Various Engineering Units
• Easy to Install
• No Moving Parts so practically Lower Maintenance

For measuring the water level and total depth in boreholes, wells, reservoirs etc. for the measurement the bob is lowered to the water level. When touching he level, a sensor effects the illumination of a signal lamp. On request, an additional acoustic signal will be released by a buzzer.

Features :

• Quick response circuit design, high detect speed, high sensitivity.
• Low power consumption, battery-powered.
• The cable has a ruler scale to measure the water level directly.

Applications :

• Dam & Power station
• Agricultural Irrigation
• Environmental protection
• Underground well water

Description :

• Magnetic Flow Meters Based on Faraday’s Laws of Electromagnetic Induction Whenever A conductor moves through a magnetic field of given field strength, a voltage is induced on the conductor proportional to the relative velocity between the conductor and the magnetic field. They offer true noninvasive measurements. They can measure reverse flows and are insensitive to viscosity, density, and flow disturbances. Electromagnetic flow meters can rapidly respond to flow changes and they are linear devices for a wide range of measurements.
• Consists of electrically insulated or non-conducting pipe, with a pair of electrodes mounted opposite to each other and a flush with the inside walls of the pipe. A magnetic coil wound around the pipe so that magnetic field is generated in a plane mutually perpendicular to the axis of the flow meter body and to the plane of the electrodes. Electrically conductive flowing liquids works as the conductor. Here, Length = distance between the electrodes= Pipe Diameter. As the liquid passes through the pipe section, it passes through the magnetic field set up by magnetic coils, thus inducing a voltage in the liquid which is detected by a pair of electrodes mounted on the pipe wall. Amplitude of the induced voltage is proportional to the fluid velocity.
• Electromagnetic Flow meters are based on Faraday’s law of Electromagnetic Induction. In Electromagnetic Flow meter, magnetic field is generated by a set of coils. As the conductive liquid passes through the electromagnetic field, an electric voltage is induced in the liquid, which is directly proportional to its velocity. This induced voltage is perpendicular to both the liquid flow direction and the electromagnetic field direction. The voltage sensed by the electrodes is further processed by the transmitter to give standardised output signal or displayed in appropriate Engineering Units on LED/LCD Display.
• The flux density of the electromagnetic field in a given Flow meter and the distance between the electrodes are constant, therefore, the induced voltage is only a function of liquid velocity.

E = K.B.V DWhere E - Induced voltage -  Volume flow is calculated by equation :

• K - Flow Tube Constant - Q = vD2π/4
• B - Magnetic field velocity
• V - Mean flow velocity - Therefore Q = E.D. π
• D - Electrode Spacing - K.B.4
• The induced voltage is not affected by the physical properties of liquid like temperature, viscosity, pressure, density and conductivity, as long as conductivity of the measure liquid is above minimum threshold level. For reliable measurement the pipe must be completely full of liquid. The electromagnetic field coil assembly is excited by pulsed DC technique, which eliminates the interfering noise and provides automatic zero correction.

Applications :

• Chemical, Petrochemical and Process Industries
• Fertilizer Industries
• Pharmaceutical Industry
• Water and Waste – Water (WTP, STP)   
• Handle Slurries
• Greasy materials
• Corrosive fluids
• Obstruction less, Full bore and low pressure drop
• Bidirectional meter
• Empty pipe detection
• Works only on conductive fluids
• Must be full at all-time (full flow)