Rotameters or Variable Area Flow Meters for technically clean fluids are available in a number of different models, involving different tube lengths and connection sizes. Details of these provided below. Standard unit has transparent PVC tube, PVDF non-magnetised float (target), UPVC union ends with solvent weld end connectors to BS/Ansi dimensions.
* Options: Different scales (eg LPS, GPM, M³/H), BSP end connectors, alternative tube materials for different media PA, PSU or PVDF, alternative float material 1.4301 (V2A), union ends in PP, PVDF or white malleable cast iron, union O-rings in FPM
Note 1: Flow scale is in LITRES PER HOUR and is calibrated using the viscosity and density of water at 20°C.
Note 2: PVC is not recommended for gaseous media
Note 3: DFM 165 = tube length 165mm
DFM 165 3/8″ (DN10) Flow range 3-24, 5-60, 10-100, 25-250 (LPH)
DFM 170 1/2″ (DN15) Flow range 5-50, 15-150, 25-250, 40-400 (LPH)
DFM 185 3/4″ (DN20) Range 15-150, 50-400, 60-600, 100-1,000 (LPH)
DFM 200 1″ (DN25) Range 25-250, 40-400, 100-1,000, 150-1,500 (LPH)
DFM 350 1″ (DN25) Flow range 60-600, 100-1,000 (LPH)
DFM 350 1-¼” (DN32) Flow range 150-1,500, 250-2,500 (LPH)
DFM 350 1-½” (DN40) Flow range 200-2,000, 300-3,000 (LPH)
DFM 350 2″ (DN50) Flow range 400-4,000, 600-6,000, 1,000-10,000 (LPH)
DFM 350 2½” (DN65) 1,500-15,000, 2,500-25,000, 10,000-50,000 (LPH)
Technical Specifications| Brand | Stubbe |
| Model | DFM |
| Type | Rotameter |
| Size Range | DN10 - DN65 |
| Flow Ranges (l/h) | 3-24, 5-50, 5-60, 10-100, 15-150, 25-250, 40-400, 60-600, 100-1000, 150-1500, 200-2000, 250-2500, 300-3000, 400-4000, 600-6000, 1000-10000, 1500-15000, 2500-25000, 10000-50000 |
| Pressure Rating | Up to 10 Bar |
| End Connections | Socket, BSP, Spigot, Flanged |
Material Specifications| Body | PA PVC-U PSU PVDF |
| Float | PVDF |
| Sealing | EPDM, FPM |
Downloads
Stubbe DFM165-350 Tech Sheet
