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Measuring the volume flow rate of extremely low flow rates of liquids and gases
Can be used in the chemical industry or in medical or laboratory engineering
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±7% Full Scale Accuracy
Direct Reading for Oil and Water
NPT or Solder Fittings
Polysulfone Construction
Compact Size with Vertical Connections
Large Easy-to-Read Scale
Unique Spring Piston Mechanism
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The variable area flow meters are designed specifically for circulating lube oil.
Features
* Alarms - all types and areas.
* Local indication for trouble shooting when in alarm.
* Transmitter for remote reading.
* Low to no maintenance.
* Calibrated for each specific oil.
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Measuring -/switching range 0,25 - 1,25 l/min ...
10 - 130 l /min water
Connection G 1/4 - G 1 1/4 female
Material brass, st. st.
Max. pressure 10 bar
Max. temperature 100 °C
Accuracy ± 5% FS
Option reed contact
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Our variable-area flowmeters are designed for liquid or gas applications where rotameters often fall short. These models have large dials with bold markings and
characters that are easy to read from a distance. They also handle high line pressures and can be mounted in any orientation.
Like rotameters, they are mounted directly in the flow stream, but with bodies machined from solid blocks of metal, they handle high-pressure applications of up to 5000 psi (vs 150 psi for rotameters). This makes them a natural for hydraulic systems.
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The Spirax Sarco DIVA pipeline unit is a complete flowmetering
system. It provides a fully density compensated 4-20 mA output
proportional to mass flow as well as a digital pulsed output. The
system comprises of:
The DIVA pipeline unit. This is installed in the line where the flow is
to be measured. There is no requirement for impulse lines or
additional equipment. The DIVA measures the force caused by the
deflection of a precision made cone due to the flowrate and converts
it to a 4 - 20 mA and digital pulsed output signal proportional to mass
flow. This output signal can be used in a number of ways
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AALBORG®'s heavy-duty IN-LINE and FLANGED ROTAMETERS are fully enclosed in a seamless brushed stainless steel case. Ideal for applications with flow rates up to 20 GPM and 90 SCFM, these flow meters are used with water and air service. These Model M ROTAMETERS are graduated for direct reading of water and air and come equipped with FNPT end fittings for easy in-line installation. Wetted parts include: borosilicate glass flowtubes, Viton® o-rings, and 316 stainless steel fittings, guide rods, floats and float stops.
SPECIFICATIONS
ACCURACY: ±3% of full scale.
MINIMUM FLOW RATE: Approximately 10% of maximum flow rate.
REPEATABILITY: ±0.5% of full scale.
MAXIMUM PRESSURE AT 200° F 93° C: 200 psig (tube sizes 3, 4, 5 and 6). 250 psig (tube sizes 8 and 9).
MAXIMUM OPERATING TEMPERATURE: 200° F (93° C).
DESIGN FEATURES
. Heavy duty stainless steel.
. Thick polycarbonate safety shields.
. Fluted or plain tapered tubes.
. Direct reading metric or English system scales.
. Unique design facilitates ease of maintenance and cleaning processes.
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Flowmeters for chemicals, brine or deionized water
These simple variable area flowmeters are real cost effective work horses for corrosive liquids or brines.
PVC, Polsulfone or Tefzel
Visual flow indication
NPT or Van Stone flanges
Micro-switch or transmitter output
Good for brines, corrosives, pure liquids
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Designed for low flowrates, AALBORG®'s Model P FLOW METER
is a precision instrument embodying the
simplicity, versatility and economy of the classical
Variable Area meter. It is particularly suitable
for metering carrier gases in chromatography,
indicating and controlling gases in manufacturing
processes, liquid and gas measurement in
laboratories, pilot plants, flow and level indicating, etc.
Shipped completely assembled, AALBORG®'s P METERS
include standard mounting fittings in a choice of
materials, side plates, thick protective magnifying
front shield and back plate, optional built-in control
valve, and flow tubes selected from the Flow
Capacities tables. Panel mounting style is convertible
to bench mounting through the use of the
optional acrylic tripod base. The tripod has a built-in
spirit leveler and leveling screws.
150 mm P METER is equipped with a CV™ Valve and the 65mm
P METER with an MFV™ Valve.
MATERIALS OF CONSTRUCTION
FLOW TUBES- Heavy-walled borosilicate glass.
FLOATS- Glass, Sapphire, 316 Stainless Steel,Carboloy and Tantalum.
STANDARD ACCURACY- ±2% FS (mm scales).±5% FS(direct readingscales).
CALIBRATED ACCURACY- ±1% FS
REPEATABILITY- ±0.25%.
USEFUL FLOW RANGE- 10:1 minimum with one float and better than 20:1 with combination of two floats installed.
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- Service: gases & liquids
- Wetted parts material:
Body- Acrylic Plastic
O-ring- NBR, Viton
Float- SS316, , Glass, POM Plastic
- Valve material: SS316
- Connecting material: SS316
- Connecting size: 1/8"NPT female
- Temperature & pressure limits:
150 pisg(10bar) @ 100ºF(38ºC)
- Temperature limit: -24ºC~+54ºC
- Accurary: 3% full scale
- Mounting: vertical position
- Weight: 0.12 kg
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Digital alternative for a VA meter with totaliser and alarm functions.
MASS-VIEW(r) has an OLED display showing:
- actual flow rate (bar graph and actual value or percentage)
- desired flow units
- type of gas (7 pre-installed gases)
- totalized flow
- min. and/or max. alarm
Other features are:
- Freedom from parallax error
- Virtually independent of pressure and temperature variations
- Low pressure drop
- Wide flow ranges
- Fast response
- High accuracy
- Alarm and counter functions (2 alarm contacts available on meters)
- Analog (0..5 Vdc) and digital communication (Modbus-RTU, RS-232 interface)
- Configurable password protection
- 7 pre-installed gases available (Air, N2, O2, CO2, Ar, CH4, C3H8) or He or H2
- 4 selectable ranges (100%, 50%, 25% and 10% of maximum fullscale range)
- Digitally calibrated
- 3 year warranty
You can order these instruments online and your order is shipped within two working days.
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Features:
- Operating pressures up to 200 psig and maximum temperatures of 121ºC
- Feature fused ceramic scales accurate to within ±2% of full scale
- Repeatability is 0.25%
- Uniformly tapered bores with internal rib guides to stabilize the float
- Floats of glass, stainless steel or carbaloy
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KOFLOC 2503F/2504FR
The KOFLOC Variable Area Flow Meter with Integrated Pressure Regulator MODEL 2503F SERIES uses MODEL 2203 SERIES precision pressure regulator valve to maintain constant flow into the secondary system even under varying load pressure at the outlet. The MODEL 2504FR SERIES uses MODEL 2204 SERIES precision pressure regulator valve to maintain constant flow under supply pressure variance at the inlet. Both models are based on the KOFLOC RK1400 SERIES High Precision Variable Area Flow Meter that employs a flow-tube manufactured with a proprietary glass molding technique. It is a premium variable area flow meter that counters the perception of rotameter as being only good for a rough estimate.
FEATURES
♦ Constant flow under varying pressure.
♦ Highly accurate measurement
♦ Stable flow control characteristics
♦ Sanitary construction for analytical applications
♦ Minute to medium flow ranges
APPLICATIONS
♦ Analyzing system
♦ Pressure digressing situations
♦ Precision measurement
♦ Bio-Engineering
♦ Gas mixing
♦ Flow monitoring
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Digital alternative for a VA meter with totaliser and alarm functions.
MASS-VIEW(r) has an OLED display showing:
- actual flow rate (bar graph and actual value or percentage)
- desired flow units
- type of gas (7 pre-installed gases)
- totalized flow
- min. and/or max. alarm
Other features are:
- Freedom from parallax error
- Virtually independent of pressure and temperature variations
- Low pressure drop
- Wide flow ranges
- Fast response
- High accuracy
- Alarm and counter functions (2 alarm contacts available on meters)
- Analog (0..5 Vdc) and digital communication (Modbus-RTU, RS-232 interface)
- Configurable password protection
- 7 pre-installed gases available (Air, N2, O2, CO2, Ar, CH4, C3H8) or He or H2
- 4 selectable ranges (100%, 50%, 25% and 10% of maximum fullscale range)
- Digitally calibrated
- 3 year warranty
You can order these instruments online and your order is shipped within two working days.
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Digital alternative for a VA meter with totaliser and alarm functions.
MASS-VIEW(r) has an OLED display showing:
- actual flow rate (bar graph and actual value or percentage)
- desired flow units
- type of gas (7 pre-installed gases)
- totalized flow
- min. and/or max. alarm
Other features are:
- Freedom from parallax error
- Virtually independent of pressure and temperature variations
- Low pressure drop
- Wide flow ranges
- Fast response
- High accuracy
- Alarm and counter functions (2 alarm contacts available on meters)
- Analog (0..5 Vdc) and digital communication (Modbus-RTU, RS-232 interface)
- Configurable password protection
- 7 pre-installed gases available (Air, N2, O2, CO2, Ar, CH4, C3H8) or He or H2
- 4 selectable ranges (100%, 50%, 25% and 10% of maximum fullscale range)
- Digitally calibrated
- 3 year warranty
You can order these instruments online and your order is shipped within two working days.
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– Compact and slender Design
– Measuring module: plugged in from the front
– mm scale, product scale, user-defined scale
– Float: spherical shape affords stability
– Seals: FKM as standard, EPDM or Buna-N
– Valve: close-control, 15-turn microvalve
– Valve practically hysteresis-free
– Customized versions:
just request our technical advice
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KOFLOC RK1812/1814
The KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES are equipped with a photosensor for detecting float positions at preset levels and thus triggering the alarm output. A light source is a red LED for easy aiming and the indicator lamp can verify its stable operation. These models are based on the KOFLOC RK1400 or the RK1200 SERIES High Precision Variable Area Flow Meter that employs a flow-tube manufactured with a proprietary glass molding technique. It is a premium variable area flow meter that counters the perception of rotameter as being only good for a rough estimate.
FEATURES
♦ High-performance
♦ Precision needle valve
♦ Numerous variants and custom models
♦ Alarm output
APPLICATIONS
♦ Flow inspection
♦ Flow alarm
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The FlowHUB is ideal for condition monitoring, test stands and closed loop control applications both for fluid power and lubrication systems. The FlowHUB can measure and display flow and temperature readings as well as switch and transmit flow values. This enables a system designer to trigger alarms, shutoffs and transmit real-time values to a PLC using just one component, instead of up to six which might have been required conventionally. This represents a significant cost saving in terms of reduced complexity of wiring and far fewer components.
It is available in five flow ranges from 1 to 360 lpm (0.25 to 100 US gpm) and in two pressure ranges 210 and 420 bar (3,000 and 6,000 psi). The FlowHUB is available in three versions - ‘Switch’, ‘Transmitter’ and ‘Ultimate’, all three versions have built in temperature measurement and a large bright digital display.
The 'Switch' version provides two configurable switched outputs; the trigger flow rate, time delay, sense (above/below) and normal mode (normally closed / normally open) can all be freely configured. Each switch is independent and can switch up to 500 mA. The 'Transmitter' version provides a conditioned analogue output either 0 to 5 Volts or 4 to 20 mA - full scale is configurable to any maximum flow. The 'Ultimate' version has both the switches and transmitter and the highest pressure rating of 420 bar (6,000 psi) as well as an enhanced response time of 50 ms.
Other configurations are available on request.
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The Spiraflo steam meter operates on the well established spring loaded variable area principle. A circular plate positioned in the flow is free to move against the action of a heavy duty precision made torsion spring. To determine the plate angle, a rotary transformer of special design is incorporated into the unit. This converts the plate angle into an electrical output which is proportional to the flow.
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Variable area flow-meters
