DFM165 3/8" 0.5 - 3.6 NM3/Hr (Air 1 Bar Abs 20 C) Plastic Variable Area Meter 165mm LengthAccurracy +/- 2.5% full ScaleInstallation: Vertical- flow upwardsMax Temp/Pressure - see sheetMaterials Tube Material: Polyamide, PVC, Polysulphon End Fittings: Rigid PVC socket connections for adhesive pipe coupling. BSP threads available. Special stainless steel inserts available. Cast iron end caps for higher temperature Float: 6 different overall lengths from 165-350mm Float Stops: PVDF 0-Rings: Standard EPDM, Special Viton, etc.
Installation and use: Pipework Usually supplied with with BSP or socket connections for imperial pipework. Metric socket fittings available at no extra cost. Installation Vertical - flow upwards. For best results ensure pipework vertical to within 2/3°. Valves For liquids may be installed upstream or downstream. For gases install valves downstream only.Optional accessories Up to three bi-stable or mono-stable switches, comprising volt free contacts to handle 240V 5 amp max current. A 4-20mA transmitter is also available. The unit is ATEX EExi Certified as standard.