Variable Area In-line Flow Meters For AirVariable Area In-line Pneumatic Flow Meters
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- Monitoring Most Pneumatic or Compressed Gas Systems
- Flow Rates From 1 to 900 SCFM @ 100 psi
- High Pressure: to 600 psi for Brass or Aluminum, 1000 psi for Stainless Steel
- High Temperature—to 116°C (240°F) Standard, 204 or 316°C (400 or 600°F) Optional
- Mounts in Any Position
- Relay Alarms and Analog Outputs Optional
- Dual SCFM and SLPS Scales
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The FLMG flow meters feature rugged construction, easy installation, and direct-reading flow rates of air. The units are calibrated at 100 psi pressure, suitable for most compressed pneumatic applications.
The spring-and-piston type assembly enables these flow meters to be mounted in any position. The FLMG models with 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 option, 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.
Measuring Accuracy: ±4% FS over the entire scale range
Repeatability: ±1% FS
Flow Measuring Range: 1.2 to 900 SCFM
Maximum Operating Pressure:
Aluminum and Brass Monitors: 40 bar (600 psig)
Stainless Steel Monitors: 70 bar (1000 psig) up to 116°C (240°F)
Maximum Operating Temperature: 116°C (240°F)
Note: For options “-HT” and “-UHT”, see high-temperature graph on spec sheet
Pressure Differential: See the pressure graphs on spec sheet.
Standard Calibration Fluids: Air @ 21°C (70°F), 1.0 sg and 6.8 bar (100 psig)
Relay (Optional): 1 or 2 form “C” relays, rated 10 A, 125 or 250 Vac or ¼ A, 250 Vdc
Mechanical Life: >106 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)
1/4 and 1/2 NPT Sizes: 1-7/8 OD x 6-9/16" length
3/4 and 1 NPT Sizes: 2-3/8 OD x 7-5/32" length
1-1/4 and 1-1/2 NPT Sizes: 3-1/2 OD x 10-1/8" length
|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|
|Window Tube||Polycarbonate (std), Pyrex®||Polycarbonate (std), Pyrex®||Polycarbonate (std), Pyrex®|
|Window Seals||Buna (std)||Buna (std)||Buna (std)|