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For liquid, air or gas monitoring applications, Lake's patented technology offers true bi-directional flow measurement in systems with pressures up to 6000 PSIG and flow rates up to 100 GPM. For convenient installation and maintenance, there's no straight pipe mounting or power supply required. To provide compatibility with most media, Lake's Bi-Directional Flow Meters are available in aluminum, brass and stainless steel.
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The Brooks line of reliable glass tube variable area meters (rotameters) is ideal for any gas and liquid flow measuring applications where viewing the process is important. Features include: Rugged, vented polycarbonate tube enclosure available on most models; tube and float can be re-ranged in-line to minimize process downtime; rotatable connections for easy installation at any angle; packing gland or O-ring sealing to meet piping requirements or customer preference; globally approved for use in hazardous areas. Reliable – only one moving part, and no power required. Low-pressure drop allows for economical pump selection.
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Lake's high temp. variable area flow meter enables flow monitoring of barrel heating fluids, thermal transfer fluids such as Syltherm® coolant flows through heat exchangers, as well as flows through hydraulic circuits and sub-circuits with elevated temps.
CHOICE OF THREE MATERIALS OF CONSTRUCTION
Select from aluminum, brass or stainless steel to meet system requirements.
UNRESTRICTED MOUNTING
Allows the designer to install the meter in any orientation – horizontal, vertical or inverted.
GOOD VISCOSITY STABILITY
A sharp-edged stainless steel orifice provides excellent measurement stability for viscosities ranging from 0-500 SSU.
RUGGED AND RELIABLE
Designed as a hydraulic service tool, this meter will provide years of maintenance-free performance.
HIGH PRESSURE OPERATION
The magnetically-coupled follower design allows operation to 6000 PSIG and use with opaque liquids.
24 DIFFERENT PORTS AVAILABLE
Standard selection of NPT, SAE and BSP ports reduces the amount of adapters required for installation.
LOW COST ACCURACY
± 2.5% of range accuracy in center third of scale; ±4% in upper and lower thirds.
BI-DIRECTIONAL AND REVERSE FLOW OPTION OFFERED
High temperature meters are also available in bi-directional and reverse flow versions.
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The Brooks line of rugged metal tube variable area meters (rotameters) is ideal for high pressure, high temperature and other demanding flow applications where safety is a concern. Features include: globally approved for use in hazardous environments; needle valves for flow control; multiple connection options provide easy installation; many corrosion resistant material options for the metering of aggressive fluids; HART and 4-20mA outputs provide for remote flow monitoring; excellent repeatability provides consistent batch and/or process production. No power required reduces installation cost. Low-pressure drop allows for economical pump selection.
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The H 250 flowmeter for liquids and gases is an all-metal flowmeter which operates on the float principle.
Depending on the flowrate, the float will assume a certain vertical position in the tube. The float position is transmitted by a magnetic coupling system to the scale. The flowmeter is designed for installation in a vertical pipe run with flow from bottom to top. The rugged construction of the H 250 variable-area flowmeter makes it particularly suitable for difficult application and environmental conditions. The H 250 flowmeter can be equipped with either the M9 or the M10 indicator.
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VARIABLE AREA FLOW METERS, often referred to as ROTAMETERS, measure gas or liquid flow rates by relating linear displacement of an internal float or sharp-edged orifice plate to a corresponding flow rate.
As the flow rate increases, the orifice area that the flow moves through increases which explains the term Variable Area.
The ROTAMETER is a tapered tube and a float. Its low cost, simplicity, low pressure drop, relatively wide rangeability and linear output make it the most widely used VARIABLE AREA FLOW METER.
AALBORG®'s SINGLE and MULTIPLE TUBE ROTAMETERS have interchangeable tubes and floats. Used to measure liquid and gas flow rates, these flow meters are precision instruments embodying simplicity and versatility.
Shipped completely assembled, as well as individually tested and NIST calibrated, these ROTAMETERS include standard mounting fittings in a choice of materials, side plates, back plate, thick protective magnifying front shield, and OptigradTM scales among its many features.
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Made entirely of PTFE, PFA, and PCTFE, AALBORG®'s Model F
FLOW METER is excellent for high-purity applications or for use
with corrosive liquids.
Units are available with a standard valve to monitor and control flow or without a valve to just monitor flow.
Flow meters are individually tested on a Mass Spectrometer Leak Detector and certified to a leak integrity rating of 1 X 10-7 sccs Helium or better.
DESIGN FEATURES:
. Chemically inert wetted components.
. Removable protective shield.
. Individually leak tested.
MATERIALS OF CONSTRUCTION:
TUBESHIELDS: Polycarbonate
FLOWTUBES: PFA
FLOATS: PTFE
WETTED PARTS: PTFE end fittings. PCTFE guide rods.
SPECIFICATIONS:
SCALES: 0 to 10 markings.
ACCURACY: ±5% of full scale.
MAXIMUM TEMPERATURE: 250º F (121º C).
MAXIMUM PRESSURE: 100 psig (6.7 bars).
LEAK INTEGRITY: Individually leak tested and certified to a rating of 1 x 10-7 sccs of Helium.
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Ideal for monitoring air compressor outputs, pneumatic tool consumption and industrial gas flows.
CHOICE OF THREE MATERIALS OF CONSTRUCTION
Select from aluminum, brass or stainless steel to meet system and media compatibility requirements.
UNRESTRICTED MOUNTING
Allows the designer to install the meter in any orientation – horizontal, vertical or inverted.
SUPERIOR EXTERIOR DESIGN
Weather-tight for use outdoors and/or on systems where wash downs are required.
RUGGED AND RELIABLE
These meters are constructed with all metal pressure vessels, allowing safe, permanent installation in industrial systems.
HIGH PRESSURE OPERATION
The magnetically coupled follower and rigid pressure vessel design allows operation to 1000 PSIG.
24 DIFFERENT PORTS AVAILABLE
Standard selection of NPT, SAE and BSP ports reduces the amount of adapters required for installation.
LOW COST ACCURACY
±2.5% of range accuracy in center third of scale; ±4% in upper and lower thirds.
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Incorporating traditional variable area precision glass
technology, AALBORG®'s rugged brass and stainless steel
Model V FLOW METERS offer accurate and economical solutions to
medium flow range measurements. V METERS are
designed with unique rotatable scales of dual air-water
direct reading graduations showing SCFM and SLPM
(air), as well as GPM and LPM (water) markings.
DESIGN FEATURES
. Rigid, compact construction.
. Dual, rotatable direct reading scales for air and water.
. Graduations reflect both metric and English systems.
. Vertical In-line or Panel Mount.
. Flow ranges from 4-20 LPM water and 140 to 900L/min air.
SPECIFICATIONS
SCALES: Rotatable, direct reading air,(SCFM-SLPM) and water (GPM-LPM).
ACCURACY: ±5% of full scale.
MAXIMUM TEMPERATURE: 250º F (121º C).
MAXIMUM PRESSURE: 150 psig (@ 200º F).
CONNECTIONS: 3/8" NPT female in line or horizontal rear.
MATERIALS OF CONSTRUCTION:
TUBESHIELDS: Polycarbonate
FLOWTUBES: Heavy walled precision formed borosilicate glass.
FLOATS: Type 316 stainless steel.
WETTED PARTS: Brass or type 316 stainless steel.
SEALS: Viton®.
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Hedland manufactures over 7,000 varieties of VA flow meter for measuring the flow of liquids and gases. The rugged in-line meters may be installed in any position and include a rotatable English/metric scale for easy viewing. Calibrated accuracy of +/- 2% full scale. Applications include oil and hydraulic fluids, phosphate esters, air and other compressed gases, water and water-based fluids. Custom measurement scales are also available for specific applications. The meters are offered in both high and low-pressure versions in a variety of materials including aluminum, brass and stainless steel.
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Lake's Basic In-Line Variable Area Flow Meters are available in aluminum, brass and stainless steel for use with a variety of oils, coolants and water. They're designed to operate in systems to 6000 PSIG and temperatures to 240ºF. Lake also offers flow meters that are designed to handle high temperature and phosphate ester media, as well as pneumatic applications.
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Liquid and Air
Blue-White's variable area flowmeters are offered in over 240 configurations, including models for in-line, panel mount and closed pipe installation. A wide range of calibrations are offered and with Blue-White Flowmeters, you know you're getting over 50 years of Manufacturing Experience, Superior Materials of Construction, and Hand Made Quality.
Flowmeters are offered with many innovative design features, including: High/low level alarms; protective shields, and flow adjustment valves.
Flowmeters are constructed of quality materials, including Polysulfone, Borosilicate Glass and Acrylic. Internal parts are corrosion and wear resistant. Permanent scales are applied directly in front of the float for easy, accurate reading.
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The Brooks® Model 1350 and 1355 Sho-Rate™ variable area meters deliver industry-leading performance for gas or liquid flows. Their robust, proven engineering ensures reliable indication and unsurpassed service life. Sho-Rate meters pioneered the concept of field-replaceable tube and float kits. If necessary, the tube and float can be replaced in-line in a matter of minutes. Brooks also offers low cost meters in glass, acrylic and polycarbonate tube configurations for less critical applications, as well as high performance glass and armored meters for more precise applications.
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Orifice Plate Flow Meter - Series OP
Stainless Steel for Use with Liquids and Gases
Oxygen Flowmeter - Series OMA
Acrylic for Use with Oxygen
Plastic Flowmeter - Series HFPC & HFPS
±5% Accuracy, Mount in any Position
Sonic Flowmeter - Model UF
Water/Liquid Flow to 26 ft/sec, ±2% Accuracy, Non-Invasive
In-Line Flow Monitor - Series HF
Water/Liquid Flow to 50 GPM, Air/Gas Flow to 22 SCFM, ±2.5% Accuracy
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Sensors
Variable area flowmeters for 2-20.000 L/h, mounting of limit switches and instrument sensors as well as Reed contacts for detection and processing of measured values.
flow transmitters: turbine, totalizer or batch controller for 0.3 – 25.000 L/h. The transmitters provide an electrical output signal for further processing.
Magnetically inductive flowmeter for DN 25 – 300. Interfaces such as R232, level measurement, differential pressure measurement, Profibus or AS-Interface enable easy integration in fully automatic plant control systems.
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Hedland offers over 7,000 variable area, turbine, and positive displacement meters for liquids and gases. The in-line variable area meters can be installed at any angle and perform at ±2% accuracy. High pressure/high temperature models available. The Flo-tech line of portable hydraulic testers is designed for diagnostic troubleshooting of hydraulic systems and components. The Flo-tech line includes turbine flow sensors with magnetic pickup, ported for optional pressure and temperature transducers.
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The Flowmeter Type 785 is based on the variable area principle
The position of the top of the float against the scale on the tube shows the flow rate level. In addition to the visual readout, this flowmeter fits with minimum and maximum limit switches, or with a transmitter.
Technical Data
Temperature Range:
tube material: trogamid = 60 °C
tube material: polysulfon = 60 °C
end connections: uPVC = 100 °C
end connections: malleable iron = 100 °C
end connections: stainless steel = 100 °C
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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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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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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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AALBORG®'s Model P FLOW METER with direct read-out is a precision instrument embodying the simplicity, versatility and economy of the classical rotameter.
This rotameter, designed for low flow rates, is particularly suitable for metering carrier gases in chromatography, indicating and controlling gases in manufacturing processes, liquid and gas measurement, liquid and gas measurement in laboratories, pilot plants, flow and level indicating, etc.
Direct reading scales indicate flow rates in engineering units such as [mL/min], standard cubic feet per hour [scfh], etc.
Such scales are designed exclusively for a specific gas or liquid at a given set of pressure and temperature and are valid only for the associated units of flow.
Therefore, the convenience of direct reading scale designs should be weighed against the resultant limitations of applicability.
For a listing of tubes with standard reading scales, see tables 10-22 in our catalog.
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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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Applications:
· 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
Reliability:
Precision, reliability and efficiency are the remarkable features of this device
Technical data:
· Measuring range: 0,1 l/h to 100 l/h water
· With pressure regulator up to 16 bar
· Product temperature: max. 100°C
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- Material :316 stainless steel for case (body in stainless steel.)
- Indication:via magnetic coupling (no seals)
- Scales:calibrated in l/h ,m3 /h ,kg/h , %
- Flow rate:water-0.4 l/h up to 3500 l/h, Air-21 NL/h up to 110000 NL/h
- Connection types :BSP , NPT , flange type on request
- Working Temperature:
Combine with electronic parts: -40°C~+150°C
Combine without electronic parts: -40°C~ 180°C
- Working Pressure :Standard 100 kg/cm²
- Connection size :1/4" ~1 1/2"
- Housing protection : IP65
- Accuracy :± 2% FS (± 1.6% FS option)
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- Material : Aluminum alloy case with paint .
- Body wetted parts : in 316SS, PTFE lined, plastic. Others request.
- Indication via magnetic coupling (no sealed)
- Scales calibrated: in l/h ,m3/h ,kg/h , % , etc.
- Flow rates for :
Water : 30 l/h up to 100,000 l/h. (special ranges on request)
Air : 0.1 Nm3/h up to 180Nm3/h. (special ranges on request)
- Connection types :
BSP , NPT , flange type, trip clamp & sanitary(others on request)
- Connection size : 1" ~ 5"
- Mounting Length : 250 mm
- Temperature : 200°C(300°C option)
- Housing protection: IP65, CLASS I, GROUPS B, C &D; CLASS II, GROUPS E, F, & G; NEMA 4, 7, 9
- Accuracy : ±2% FS,(±1.6 F.S Option)
- Max pressure : 40 kg/cm2 (Option: up to 100 kg/cm2)
- Option : Switch available (Micro Switch : 3A/250VAC, 5A/30VDC, 0.4/125VDC)
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- Material : Aluminum alloy painted for case (body in stainless steel.)
- Indication: via magnetic coupling (no seals)
- Scales: calibrated in l/h ,m /h ,kg/h , %
- Flow rate: water-0.4 l/h up to 1000 l/h, Air-21 NL/h up to 30000 NL/h
- Connection types : BSP , NPT , flange type on request
- Working Temperature:
Combine with electronic parts: -40°C~+150°C
Combine without electronic parts: -40°C~ 180°C
- Working Pressure : Standard 100 kg/cm²
- Connection size : 1/4" ~ 3/4"
- Housing protection : IP65
- Accuracy : ± 2% FS (± 1.6% FS option)
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- Piston type
- Fluid : Water , oil , other liquid available
- Flow range : 15 ~ 24000 l/h (at Water)
- Accuracy : ± 3 % F.S , On request : ± 2.5 % F.S
- Size : 1/4" to 2-1/2"
- Connection Size : NPT , Flange Type on Request
- Working Limits : Temperature : -10°C to +150°C
- Max. Pressure : 30 kg/cm²
- Housing enclosure : IP 65
- Housing material :
NS,CS,MS types-Aluminum Alloy
ES type-316SS
- Lens material:Safety glass
- Mounting:Vertical,horizontal available
- Materials : Brass , 316SS wetted parts
- Alarm switch : Micro switch,inductive switch available
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KOFLOC RK120X
The KOFLOC Multiple-Tube Precision Variable Area Flow Meter with Needle Valves MODEL RK120X SERIES combines 2 to 4 RK1200 precision flow-tubes that make it simpler to measure and control of multiple flow range or gases and avoid clutter. The KOFLOC RK1200 SERIES High Precision Variable Area Flow Meter is a high-grade rotameter especially suited for measurement and control of minute flow, with an industry reputation of being one of the best analog devices. The KOFLOC 2412 SERIES Non-Rotating Precision Needle valve allows precise and easy flow control of minute amounts of gases and liquids. The internal mechanism converts rotating movement into stable linear movements with minimal vibrations. The needle and orifice has a thermal compensating structure (US P.A.F.) of 0.3%/˚C (15˚C to 35˚C).
FEATURES
♦ Wide-range flow measurement
♦ Fine control of minute flow
♦ Precision needle valve
♦ Numerous variants and custom models
APPLICATIONS
♦ Research & Analytical use
♦ Control of multiple gases
♦ Simultaneous control of multiple ranges
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