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This in-line liquid flow meter measures flow from 0.1 to 1 GPM at ±2% accuracy. It has a 1/4" (6.3 mm) NPT Female connection rated to 3500 psi (241.32 bar). It suits oil flow monitoring and transmitting a signal proportional to flow rate to a process controller.
This in-line liquid flow meter measures flow from 0.1 to 1 GPM at ±2% accuracy. It has a 1/4" (6.3 mm) NPT Female connection rated to 3500 psi (241.32 bar). It suits oil flow monitoring and transmitting a signal proportional to flow rate to a process controller.
The FLMW and FLMH flow meters can be installed directly in the fluid line without flow straighteners or special piping. The spring-and-piston type assembly enables these flow meters to be mounted in any position and protects them against changes in viscosity.
Features
Applications
| Series | FLMW and FLMH Series |
| Type | in-line liquid flow meter |
| Flow range | 0.1 to 1 GPM |
| Accuracy | ±2% full scale |
| Maximum pressure | 3500 psi (241.32 bar) |
| Process connection | 1/4" (6.3 mm) NPT Female |
| Measuring Accuracy | ±2% FS over the entire scale range |
| Repeatability | ±1% FS |
| Flow Measuring Range | 0.4 to 550 LPM (0.1 to 150 GPM) |
| Max Operating Pressure (Aluminum and Brass Monitors) | 3500 psig (241.3 bar) |
| Max Operating Pressure (Stainless Steel Monitors) | 6000 psig (413.7 bar) up to 240°F (116°C) |
| Max Operating Temperature | 240°F (116°C) |
| Port Sizes | 1/4" (6.4 mm) to 1-1/2" (3.8 cm) FNPT |
| Transfer magnet | PTFE-coated Alnico |
| Floating orifice disk | Stainless steel |
| All other internal parts | Stainless steel |
| Optional High Temperature | 400°F (204°C) maximum (-HT); 600°F (315°C) maximum (-UHT) |
| Media | Oil (FLMH) and water (FLMW) |
| Wetted Casing/End Ports/Tapered Shaft | Aluminum (not for water), Brass, or 304 SS |
| Seals | Buna (STD), EPR, FKM or Perfluoroelastomer (Aluminum/Brass); FKM with PTFE backup (STD), Buna, EPR or Perfluoroelastomer (Stainless Steel) |
| Window Tube (Non-Wetted) | Polycarbonate (STD), Pyrex® |
| Window Seals (Non-Wetted) | Buna (STD) |
| Relay (Optional) | 1 or 2 form "C" relays, rated 10 A @125 or 250 V AC or 0.25 A @ 250 V DC |
| Mechanical Life | >10⁷ cycles |
| Analog Output (Optional) | Supply voltage 12 to 35 V DC, field selectable for 0 to 5 V DC (100 W minimum load), 0 to 2000 Hz square-wave pulse or 4 to 20 mA; R(maximum) = 50 (Vs -12), Vs = supply voltage DC |
| Calibration Fluids (Oil Monitors) | DTE 25 @ 110°F (43°C), 0.873 sg |
| Calibration Fluids (Water Monitors) | Tap water @ 70°F (21°C), 1.0 sg |
| Maximum Particle Size | 76 microns |
| Installation Dimensions (¼ and ½ Port) | 1 7/8 OD x 6.6" (168 mm) length |
| Installation Dimensions (¾ and 1.0 Port) | 2 3/8 OD x 7.2" (183 mm) length |
| Installation Dimensions (1¼ and 1½ Port) | 3 1/2 OD x 10.1" (257 mm) length |
| Series | FLMW and FLMH Series |
| Type | in-line liquid flow meter |
| Flow range | 0.1 to 1 GPM |
| Accuracy | ±2% full scale |
| Maximum pressure | 3500 psi (241.32 bar) |
| Process connection | 1/4" (6.3 mm) NPT Female |
| Measuring Accuracy | ±2% FS over the entire scale range |
| Repeatability | ±1% FS |
| Flow Measuring Range | 0.4 to 550 LPM (0.1 to 150 GPM) |
| Max Operating Pressure (Aluminum and Brass Monitors) | 3500 psig (241.3 bar) |
| Max Operating Pressure (Stainless Steel Monitors) | 6000 psig (413.7 bar) up to 240°F (116°C) |
| Max Operating Temperature | 240°F (116°C) |
| Port Sizes | 1/4" (6.4 mm) to 1-1/2" (3.8 cm) FNPT |
| Transfer magnet | PTFE-coated Alnico |
| Floating orifice disk | Stainless steel |
| All other internal parts | Stainless steel |
| Optional High Temperature | 400°F (204°C) maximum (-HT); 600°F (315°C) maximum (-UHT) |
| Media | Oil (FLMH) and water (FLMW) |
| Wetted Casing/End Ports/Tapered Shaft | Aluminum (not for water), Brass, or 304 SS |
| Seals | Buna (STD), EPR, FKM or Perfluoroelastomer (Aluminum/Brass); FKM with PTFE backup (STD), Buna, EPR or Perfluoroelastomer (Stainless Steel) |
| Window Tube (Non-Wetted) | Polycarbonate (STD), Pyrex® |
| Window Seals (Non-Wetted) | Buna (STD) |
| Relay (Optional) | 1 or 2 form "C" relays, rated 10 A @125 or 250 V AC or 0.25 A @ 250 V DC |
| Mechanical Life | >10⁷ cycles |
| Analog Output (Optional) | Supply voltage 12 to 35 V DC, field selectable for 0 to 5 V DC (100 W minimum load), 0 to 2000 Hz square-wave pulse or 4 to 20 mA; R(maximum) = 50 (Vs -12), Vs = supply voltage DC |
| Calibration Fluids (Oil Monitors) | DTE 25 @ 110°F (43°C), 0.873 sg |
| Calibration Fluids (Water Monitors) | Tap water @ 70°F (21°C), 1.0 sg |
| Maximum Particle Size | 76 microns |
| Installation Dimensions (¼ and ½ Port) | 1 7/8 OD x 6.6" (168 mm) length |
| Installation Dimensions (¾ and 1.0 Port) | 2 3/8 OD x 7.2" (183 mm) length |
| Installation Dimensions (1¼ and 1½ Port) | 3 1/2 OD x 10.1" (257 mm) length |
