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Variable Area In-line Liquid Flow Meters
Variable Area In-line Liquid Flowmeters
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- Direct Reading Dual Scale
- Range 0.1 to 150 GPM (0.4 to 550 LPM)
- High Pressure: 3500 psi (Brass or Aluminum); 6000 psi (Stainless Steel)
- High Temperature: to 116°C (240°F) (Standard) or 204°C or 316°C (400 or 600°F) (Optional)
- Mounts in Any Position
- Relay Alarms and Analog Outputs Optional
- Oil or Water Models
FLMH-112100AL-MA Model Options
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Media Type
Liquid Flow Range
Process Connection Size
Wetted Materials
Max Operating Pressure
Features
Category
Accuracy
Process Connection Type
Max Process Temperature
Scale
Valve Included
The FLMW and FLMH variable area flowmeters can be installed directly in the fluid line without flow straighteners or special piping. The spring-and-piston type assembly enables these flowmeters to be mounted in any position and protects them against changes in viscosity. Available scaled for water or oil, in Aluminum, Brass or Stainless Steel bodies.
The FLMW or the FMLH Series with the optional analog output (-MA) are typically used to transmit a signal proportional to the flow rate to a process controller, a PLC, a recorder, or a panel-mount display. With the -MA options the user can choose between reading a 0 to 2000 Hz square-wave pulse, a 0 to 5 Vdc analog signal, or a 2-wire 4 to 20 mA analog signal by connecting the appropriate pins.
SPECIFICATIONS
Accuracy: ±2% FS over the entire scale range
Repeatability: ±1%
Flow Measuring Range: 0.4 - 560 lpm (0.1 - 150 gpm)
Maximum Operating Pressure:
Aluminum and brass monitors: 3500 psig (240 Bar)
Stainless steel monitors: 6000 psig (410 Bar) up to 116°C (240°F)
Maximum Operating Temperature:
Standard Models: 116°C (240°F)
High Temp (-HT) Models: 204°C (400°F) max
Ultra High Temp (-UHT) Models: 316°C (600°F) max
Pressure Differential: download spec sheet for pressure drop graphs
Standard Calibration Fluids:
Oil monitors: DTE 25 @ 43°C (110°F), 0.873 sg
Water monitors: tap water @ 21°C (70°F), 1.0 sg
Maximum Particle Size: 76 microns
Relay (Optional): 1 or 2 form “C” relays, rated 10 A @ 125 or 250 Vac or 0.25 A @ 250 Vdc
Mechanical Life: >107 cycles
Analog Output (Optional): Supply voltage 12 to 35 Vdc, field selectable for 0 to 5 Vdc (100 W minimum load), 0 to 2000 Hz square-wave pulse or 4 to 20 mA; Rmax = 50 (Vs-12). Vs = supply voltage DC
Installation Dimensions:
1/4 and 1/2 NPT Sizes: 1-7/8 OD x 6.6" length
3/4 and 1 NPT Sizes: 2-3/8 OD x 7.2" length
1-1/4 and 1-1/2 NPT Sizes: 3-1/2 OD x 10.1" length
Examples of popular models in the "To Order" box. Use the "Part Number Builder" to get
pricing for many other available models.
The FLMW or the FMLH Series with the optional analog output (-MA) are typically used to transmit a signal proportional to the flow rate to a process controller, a PLC, a recorder, or a panel-mount display. With the -MA options the user can choose between reading a 0 to 2000 Hz square-wave pulse, a 0 to 5 Vdc analog signal, or a 2-wire 4 to 20 mA analog signal by connecting the appropriate pins.
SPECIFICATIONS
Accuracy: ±2% FS over the entire scale range
Repeatability: ±1%
Flow Measuring Range: 0.4 - 560 lpm (0.1 - 150 gpm)
Maximum Operating Pressure:
Aluminum and brass monitors: 3500 psig (240 Bar)
Stainless steel monitors: 6000 psig (410 Bar) up to 116°C (240°F)
Maximum Operating Temperature:
Standard Models: 116°C (240°F)
High Temp (-HT) Models: 204°C (400°F) max
Ultra High Temp (-UHT) Models: 316°C (600°F) max
Pressure Differential: download spec sheet for pressure drop graphs
Standard Calibration Fluids:
Oil monitors: DTE 25 @ 43°C (110°F), 0.873 sg
Water monitors: tap water @ 21°C (70°F), 1.0 sg
Maximum Particle Size: 76 microns
Relay (Optional): 1 or 2 form “C” relays, rated 10 A @ 125 or 250 Vac or 0.25 A @ 250 Vdc
Mechanical Life: >107 cycles
Analog Output (Optional): Supply voltage 12 to 35 Vdc, field selectable for 0 to 5 Vdc (100 W minimum load), 0 to 2000 Hz square-wave pulse or 4 to 20 mA; Rmax = 50 (Vs-12). Vs = supply voltage DC
Installation Dimensions:
1/4 and 1/2 NPT Sizes: 1-7/8 OD x 6.6" length
3/4 and 1 NPT Sizes: 2-3/8 OD x 7.2" length
1-1/4 and 1-1/2 NPT Sizes: 3-1/2 OD x 10.1" length
| Description | Aluminum (Not for Water) | Brass | Stainless Steel |
| High pressure casing, end ports and tapered shaft | Aluminum | Brass | 304 SS |
| Seals | Buna (std), EPR, FKM or perfluoroelastomer | Buna (std), EPR, FKM or perfluoroelastomer | FKM with PTFE backup (std) Buna, EPR or perfluoroelastomer |
| Transfer Magnet | PTFE-coated Alnico | PTFE-coated Alnico | PTFE-coated Alnico |
| Floating Orifice Disk | Stainless Steel | Stainless Steel | Stainless Steel |
| All Other Internal Parts | Stainless Steel | Stainless Steel | Stainless Steel |
| Description | Aluminum | Brass | Stainless Steel |
| Window Tube | Polycarbonate (std), Pyrex® | Polycarbonate (std), Pyrex® | Polycarbonate (std), Pyrex® |
| Window Seals | Buna (std) | Buna (std) | Buna (std) |
Examples of popular models in the "To Order" box. Use the "Part Number Builder" to get
pricing for many other available models.
Rated 4 out of
5
by
Tulo from
Valve continuos purging system monitoring
Common medium for this application is high pressure hot oil (160C) that is required in a very small flow capacity (10÷20lit/h per one valve).
Date published: 2018-04-23
I am interested in FLMH-1010SS-MA for measuring oil flowrate. I am looking at the pressure drop curves shown in the datasheet. Could you provide info on what oil these curves are based on, and how they would scale for an oil that is ~30 cSt at ~40 C.
Thank you for your inquiry. The pressure drop curves for the FLMH series meters used DTE 25 at 110F (43 C), 0.873 SG oil. Please e-mail flow@omega.com for questions about your specific application.
Date published: 2020-01-31
