Not all combinations are valid. Options compatible with previous selections will be in bold.
*Highlighted options are not compatible. Please select a different combination.
FL4000 OEM-style acrylic rotameters are precisely machined from rugged, solid acrylic blocks for superb durability. They are available in 50 mm, 75 mm, 127 mm, and 250 mm scale lengths (1.97, 2.96, 5 and 9.85') to provide desired accuracies from 2% to 6%. Designed for front-panel mounting, the rear ports extend through the panel for easy hookup. Mounting threads are also provided. Units are available with and without valves.
Construction: Acrylic tube, 316 SS float and guide rod (no guide rod for FL4211 through FL4215 air meters), PVC end fittings (brass on FL4200 Series), EPR O-rings, optional brass valve
Water Ranges: 125 psig @ 21°C (70°F); 54°C (130°F) at 0 psig
Air ranges: 100 psig @ 21°C (70°F); 38°C (100°F) @ 0 psi
Full Scale Accuracy/Repeatability:
FL4300 and FL4400: 4/1%