Liquid Flow Measurement

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Platon Infra-Red Flow Alarm | DS1120

Platon Infra-Red Flow Alarm - Overview

The Platon Infra-Red Flow Alarm DS1120 uses an infra-red beam across the glass flow tube of a Variable Area (VA) flowmeter to determine float position. Passage of the float between the sensor arms is detected, and the sensor determines whether the float is above or below the sensor position. Electronics inside the sensor module give an open collector transistor output, suitable for external logic circuits. Suitable for all gas flows and liquid flows where the float is visible. The sensor is clipped to the back of the flowmeter frame. Movement up and down the frame allows the sensor to provide a flow alarm at any point on the tube scale, as required. The optional mains interface and relay module are used to provide the DC power needed to drive the sensor electronics, plus a SPCO 8 Amp mains relay output. This relay acts as a slave to the transistor output from the sensor module. Each relay module has two output relays and can be used to monitor two separate alarm sensors.

Platon Infra-Red Flow Alarm - Features
- High or low flow arm
- Intelligent: Knows whether float above or below sensor
- Adjustable over full range of flow tube
- Suitable for normal (NG/NGX) or miniature (LG/LGX) flowmeters
- DC output direct to standard logic circuits
- Optional mains interface relay module
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Platon Automatic Flow Controller | DS1511

Platon Automatic Flow Controller - Overview

These automatic flow control devices are suitable for liquids or gases. Once adjusted to the required value, flow is maintained accurately at that rate independent of pressure fluctuations in the supply or varying backpressures downstream of the meter. No electrical power or external flow measurement input is required as the control system uses the line pressure available. These are ideal for blending or dosing applications to maintain the required delivery of valuable gases or liquids, despite process line pressure changes.

Platon Automatic Flow Controller - Features
- Automatic
- No power required
- Adjustable over wide range
- High accuracy
- Fast response
- Gases or liquids
- Suitable for use on flammable liquids
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Platon Metal Tube GMT Flanged VA Flow Meter | DS1220

Platon Metal Tube GMT Flanged VA Flow Meter - Overview

These variable area meters are made of totally welded stainless steel. The robust construction has no glands or seals to leak which makes the meters suitable for high-pressure applications or extreme temperatures. Liquid flowing up the tapered flow tube lifts the float to an equilibrium position according to the flow rate. A magnetically coupled pointer indicates this flow on an external scale. The large meter indication is easily visible with the pointer moving over a 1500 scale. Each scale is produced specifically for the fluid involved and the process conditions expected. Several flow ranges are available for meters of each standard line size. Meters can be supplied with EN, ANSI or other standard flanges, or BSP or NPT screwed connections. The standard GMT is self-contained and needs no external power. Alternative materials are available for special orders eg. Hastelloy or Monel wetted parts. Brass or Stainless steel bodied meters are also available with screwed connections. The indicator can be provided with one or two flow alarm sensors which are adjustable over the meter operating range. Full electronic transmission and totalisation are available using the “VAMPIRE” electronic module. These flow meters have particular advantages over glass flow meters where fluids are opaque or staining, or where higher safety and security for dangerous or toxic fluids are required.

Platon Metal Tube GMT Flanged VA Flow Meter - Features
- Easy installation—flanged or screwed
- For high pressure or extreme temp applications
- ½” - 4” line sizes
- No power required
- Clearly visible meter
- Scaled for process fluids
- No glands or seals
- Robust, simple construction
- Pulsation damper on gas meter
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Platon Pelton Wheel Flow Meter | DS1010

Platon Pelton Wheel Flow Meter - Overview

This turbine flowmeter operates on the Pelton wheel principle for low flowrate applications on low viscosity fluids. The Pelton wheel retains a manageable diameter allowing close machining tolerances whilst being capable of handling very low flow rates with reasonable accuracy. The units may be used for additive flows, fuel consumption metering, perfumes, colourings etc. A range of interchangeable metering plugs may be provided within one body size, so that flow ranges may be changed very simply. Construction is in stainless steel as the standard but other materials may be used to suit the corrosive properties of the metered fluid. Flanges to ANSI, EN1092-1 or BS10 may be fitted and a design is also available with Ermeto or BSP couplings for high-pressure hydraulic work. The Pelton wheel is a star-shaped paddle wheel housed within a metering plug containing a small jet hole where a high-velocity jet is aimed at the rotor. Rotational speed and hence frequency are directly proportional to flow rate. The sharp edges of the rotor are detected by a reluctance pick-off coil and an alternating voltage is generated.

Platon Pelton Wheel Flow Meter - Features
- Measuring Range: 8 to 1
- Accuracy: ±1.0%
- Repeatability ±0.25%
- Operating Temperature: 150˚C max
- Operating Pressure: limited only by coupling design
- Transmission length: Up to 300 meters
- Overall length: Flanged 114mm Screwed 95mm
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Explosion Proof Flow Switch | DS1432

Explosion Proof Flow Switch - Overview

This paddle-operated flow switch is suitable for ½" to 2" pipelines. Magnetic coupling between the spring-loaded vane and the microswitch gives a totally glandless construction. Applications include gases or liquids up to 2,000 psi. Models are available with Stainless Steel or Brass process parts.

Explosion Proof Flow Switch - Features
Suitable for gases and liquids up to 2,000 psi

Leak-proof lower body machined from bar stock

Weatherproof

Low flow model offers field adjustable set point

Easy installation

ATEX approved
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Horizontal Display Metal Tube Rotameter | QTLZ

Horizontal Display Metal Tube Rotameter - Overview

This Variable Area Rotameter is suitable for single-phase liquids or gas flowing in small/medium pipe diameters. It can be used with corrosive, toxic and explosive mediums. It has good stability and reliability. It has an easy-to-read LCD digital display screen and is easy to install. Applications include the Chemical, Pharmaceutical, Petrochemical, Food, and Metallurgical Industries.

Horizontal Display Metal Tube Rotameter - Features
- Horizontal Installation, easy installation and observation
- Good stability and reliability
- Suitable for single-phase liquid/gas with small/medium pipe diameter
- Can be used for corrosive, toxic and explosive mediums
- Two-wire 4~20mADC signal output
- Easy-to-read LCD digital display
- Range ratio: 10:1 (Special type 20:1)
- Accuracy class: 2.5 (Special type 1.5% or 1.0%)
- Medium temperature: Normalized type -80℃~+220℃
- Ambient temperature: -40℃~+120℃(Remote display without LCD≤85℃)
- Working pressure: DN15~DN50 PN16 (Special type 2.5MPa)
https://www.youtube.com/watch?v=npxWCLED5RE

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Platon Turbine Flow Meter | DS1012

Platon Turbine Flow Meter - Overview

This range of Stainless Steel turbine flow meters measures flow rates of water and low to medium viscosity oils and other liquids in high-pressure applications. Providing an electrical pulse output these meters, when linked to a display unit, provide accurate and high repeatability flow measurement. High accuracy measurement is provided by the NT series for up to 6" lines.

Platon Turbine Flow Meter - Features
- Flow rates from 0.5 - 5 L/min
- High accuracy/excellent reliability
- Industrial and hygienic versions available
- Wide range of end connections available
- Available for gas applications
- Reverse and dual pick-up options available
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Flap Indicator | DS1931

Flap Indicator - Overview

This indicator is particularly suited to full bore flows where the flow may be quite low. The flow must move the flap in order to pass through the meter. The flow rate is indicated on an easy-to-read scale. It is suitable for use with either horizontal or upward vertical flow.

Flap Indicator - Features
- Stainless Steel flap and scaleplate
- Provides a visual indication of flow conditions when piping
- Ideal for flow monitoring in full pipes
- High-quality, robust design
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Tri-clamp Electromagnetic Flow Meter | RWEM/T

Tri-clamp Electromagnetic Flow Meter - Overview

The Tri-clamp Electromagnetic Flow Meter is a kind of volume flow meter. It is quick and easy to install. It is made of stainless steel, which can easily be disassembled and cleaned. This prevents pollution during use, and the accumulation of measuring fluid residues in the measuring tube. It is based on Faraday's law of electromagnetic induction which is used to measure conductance greater than 20 μS/cm volume of conductive liquid flow. This measures the general volume of conductive liquid flow, but can also be used to measure strong acids, alkalis, strong corrosive liquids, mud, pulp, etc. The long-life Harmelss Food Grade Stainless Steel allows it to come into contact with food directly. It can withstand high temperature disinfection, making it ideal for use in dairy. It has current output and pulse output for connecting with PLC or other devices and is RS485/HART/Profibus compatible.

The Tri-clamp Electromagnetic Flow Meter is suitable for use in drinking water, milk, groundwater, beer, wine, jam, juice and other food & drink industries. It is also widely used in paper pulp and gypsum slurry because it can be cleaned easily.

Tri-clamp Electromagnetic Flow Meter - Features
- Size: DN15mm-DN200mm
- Nominal Pressure: 1.6Mpa
- Accuracy: ±0.5%(Standard)
- Liner: FEP, PFA
- Output Signal: 4-20mA pulse frequency relay
https://www.youtube.com/watch?v=ikYIyaByPhM

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Digital Liquid Turbine Flowmeter | DS1011

Digital Liquid Turbine Flowmeter - Overview

This extensive range of accurate battery-powered digital turbine flow meters is suitable for low to medium-viscosity liquids. The internal turbine rotor rotates as the liquid passes through the flowmeter. This is then converted into a digital signal. They are available in a choice of construction materials (nylon, PVC, PVDF, aluminium, stainless steel, bronze) and end fittings. Many GPI Digital Flow Turbine models are ATEX certified for hazardous areas.

Digital Liquid Turbine Flowmeter - Features
- Accurate
- Battery-powered
- Suitable for low to medium-viscosity liquids
- Range of construction materials (nylon, PVC, PVDF, aluminium, stainless steel, bronze) and end fittings
- Many models are ATEX certified for hazardous areas
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Digital Vertical Metal Tube Rotameter | QTLZ Male Thread

Digital Vertical Metal Tube Rotameter - Overview

This Rotameter is a variable area flow measuring instrument. The 16-bit microprocessor and high-quality components in the instrument ensure excellent performance of the flowmeter in various kinds of applications. The 304/316 stainless steel structure can be used to measure the flow of liquid, gas, and steam. It is especially suitable for measurement of low flow rate, microflow range, high temperature, high pressure, corrosive, conductive or non-conductive mediums. Applications include petrochemicals, chemicals, food and bev, water treatment and other industries.

Digital Vertical Metal Tube Rotameter - Features
- Range ratio: 10:1(Special type 20:1)
- Accuracy class: 2.5(Special type 1.5% or 1.0%)
- Working pressure: DN15~DN50 PN16 (Special type 2.5MPa)
- Medium temperature: Normalized type -80℃~+220℃
- Ambient temperature: -40℃~+120℃(Remote display without LCD≤85℃)
- Double indication system
- Separation of magnetic coupling and magnetic signals
- Double-line liquid crystal digital display
- Bore diameter of the measuring tube of the flowmeter is complete
- Resistance to high temperature and high pressure
- Good protection and explosion-proofing performance
- Full series of installation pattern
- Various kinds of power supply patterns
- Highly integrated circuit
- Systematical software function and standard Hart communication pattern
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FV Automatic Flow Controller | DS1521 Platon

FV Automatic Flow Controller - Overview

Accurate flow control is vital to a wide variety of processes, for example blending and dosing applications. This controller automatically regulates the flow of liquids or gases by using available line pressure. Once set to the required value, flow is maintained accurately independently of supply pressure fluctuations or varying back pressure downstream, subject to certain minimum overall head loss requirements. No electrical power or external flow measurement input is required. By keeping the required fluid delivery rate constant, one can ensure consistent product quality irrespective of process liquid head changes throughout a batch. These controllers are used in flow control systems such as aircraft fuel delivery systems, to prevent the hazard of excessive flows and protect metering systems from over-speeding. On natural gas or fuel oil delivery systems to multiple burners, the units can maintain optimum flow rate to each burner independently. Available in sizes from 15mm to 100mm. All units can be fitted with a flow scale plate calibrated for process conditions. Once set to a flow rate, the Flostat maintains that flow independent of line pressure fluctuations,

FV Automatic Flow Controller - Features
- Suitable for hazardous liquids or gases
- Fast response
- Fully automatic flow control
- No power required
- 1/2” - 4” line sizes
- 10:1 control range
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DOSIC Ultrasonic Flow Meter

DOSIC Ultrasonic Flow Meter - Overview

The DOSIC® flowmeter detects the flow volume of conductive and non-conductive liquids based on ultrasonic technology. With its non-contact measurement channel and stainless-steel housing, the ultrasonic flowmeter is suitable for measuring tasks in hygienic environments. Its compact and rugged design offers a wide variety of application possibilities, especially where space restrictions or aggressive media are relevant. Installation is quick and easy and does not require medium calibration. The seal-free, self-draining measuring tube enhances process reliability. Up to two configurable digital and analogue outputs, as well as the IO-Link interface, ensure the right initial situation. The DOSIC® is EHEDG-certified and FDA-compliant.
Applications include the food and beverage industry, CIP systems, rinsing circuits with demineralized water, cooling circuits, dairies and measuring systems.

DOSIC Ultrasonic Flow Meter - Features
- Flow measurement for water and oil-based liquids
- Seal-free stainless-steel 316L sensor with RA ≤ 0.8
- Straight, self-draining measuring tube
- Compact design with short installation lengths
- Configurable digital outputs
- Temperature measurement
- IP 67/69 enclosure rating, CIP/SIP-compatible, IO-Link version 1.1
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Platon Plastic VA Flowmeter | DS1140

Platon Plastic VA Flowmeter - Overview

Type PG and PGU flowmeters are low-cost variable area flowmeters for liquids or gases, in pipe sizes 1/2” or 1”.The shatterproof TPX moulded tapered indicator tube has a 100mm linear flow scale with a 10:1 flow range. The stainless steel or Dural float rises with the flow to an equilibrium position. The flow rate is then read from the top of the float. Scales are etched directly onto the plastic flow tube ensuring high float visibility so that it can be easily read at a distance. They are available with air or water scales etched into the flow tube. Glass tubes are also available, which can be supplied with custom scales to suit process conditions, in the PGU housing. TPX plastic has excellent resistance to most chemicals and gases. It is also non-toxic and boilable.

Type PG is a lightweight, open construction ideal for surface mounting or portable use. For alternative process liquids or conditions, external laminated scales are provided and positioned in front of the flow tube.

Type PGU has a rigid diecast housing with a Perspex window, giving it complete protection from random damage. This flowmeter is suitable for unsupported mounting in process pipework.

Platon Plastic VA Flowmeter - Features
- Large flow capacity for use on 1/2” and 1” lines
- High visibility
- Instantaneous in operation
- Suitable for use on a wide range of liquids and gases
- Glass tube or special scale options
- Low-pressure drop
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Shunt Orifice SGUV | Platon DS1160

Shunt Orifice SGUV - Overview

The type SGUV and type SGUL are direct reading Flowmeters for clean liquids and gases in pipe sizes larger than 30mm. They provide a robust and cost effective method of flow measurement. The indicator housing can be mounted locally to the pipe or remotely by the use of flexible impulse tubing. The instrument is a combination of two measuring principles. It is essentially a pressure differential device consisting primarily of an accurately machined orifice plate located in the main pipework. This produces a pressure drop proportional to the square of the flow rate. A secondary orifice restrictor located in the by-pass flowmeter is accurately calibrated to produce a by-pass flow that can be measured by the glass VA type flowmeter, scaled in terms of the main pipe flow. The metering elements are manufactured to a high standard of interchangeability with boldly marked indicating scales and dynamically balanced floats.

Shunt Orifice SGUV - Features
- Calibration for wide range of gases and liquids
- Available for various flanges
- Instantaneous reading
- Ease of installation
- Compact and rugged construction
- Optional flow alarm
- Maintenance possible under flow conditions
- Interchangeable components provide low cost unit
- Only one moving part
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