7612 SupplementVEGAFLEX 83 • Two-wire 4 … 20 mA/HART44225-EN-19013112 Supplement12.1 Technical dataGeneral data316L corresponds to 1.4404 or 1.4435Materials, wetted partsƲ Process fitting 316L and PEEKƲ Process seal on the instrument side(rod leadthrough)FFKM (Kalrez 6221), EPDM (Freudenberg 70 EP-DM 291), FEPM (Vi 602 Extreme-ETP, Messrs. COG)Ʋ Process seal On siteƲ Rod: ø 8 mm (0.315 in), polished 316L (only 1.4435), (Basle Standard)Surface quality1)Ʋ Polished (Basel Standard) Ra < 0.76 μm (3-5 in)Ʋ Electropolished (Basel Standard) Ra < 0.38 μm (1.5-5 in)Materials, non-wetted partsƲ Plastic housing Plastic PBT (Polyester)Ʋ Aluminium die-cast housing Aluminium die-casting AlSi10Mg, powder-coated (Basis:Polyester)Ʋ Stainless steel housing (precisioncasting)316LƲ Stainless steel housing (electropol-ished)316LƲ Seal between housing and housing lid Silicone SI 850 RƲ Inspection window in housing cover(optional)Polycarbonate (with Ex d version: glass)Ʋ Ground terminal 316LƲ Cable gland PA, stainless steel, brassƲ Sealing, cable gland NBRƲ Blind plug, cable gland PAConductive connection Between ground terminal, process fitting and probeProcess fittingsƲ Clamp from 2"Ʋ Slotted nut from DN 32 PN 40WeightƲ Instrument weight (depending onprocess fitting)approx. 0.8 … 8 kg (0.176 … 17.64 lbs)Ʋ Rod: ø 8 mm (0.315 in), polished approx. 400 g/m (4.3 oz/ft)Probe length L (from seal surface)Ʋ Rod: ø 8 mm (0.315 in), polished up to 4 m (13.12 ft) - also possible for segmented rodsƲ Trimming accuracy (rod) ±1 mm + 0.05 % of the rod length1) All wetted parts.