For technical data sheets and dimensional drawings please refer to our website www.badotherm.com 03/09/2007 rev 2-B 226 chemical seals 3.1.1. chemical seal USL internal diaphragm, low pressure threaded type typical “USL” seal applications to combine with industrial process transmitters. to combine with mechanical pressure gauges. to combine with pressure switches. technical specification model USL Threaded connection NPT (male or female) 1/2” 3/4” 1” BSP (male or female) Diaphragm size in mm 89 89 89 Max. process pressure in bar at 20 °C 100 100 100 8 bolts A2-70 Max. capillary length in meter 15 15 15 Min. pressure range for PI in bar 0.6 0.6 0.6 Min. span for GP & AP in mbar 80 80 80 Min. span for DP in mbar 10 10 10 Instrument connection Standard Options Capillary tubing Top entry Threaded 1/2” BSP 1/4” NPT / 1/2” NPT / 1/4”BSP Features Standard Options Capillary tubing AISI316 PVC sleeve black Armoring AISI304 Polyolefin sleeve black Polyolefin sleeve white Filling fluid BSO22 Others see page 171 Diaphragm AISI316L On request Temperature reducer All instruments except DP Temperature compensator All instruments except PI Fully welded construction All instruments Flushing connection 1 or 2 ( with 1/4”npt plugs) Calibration on process conditions All instruments Hydrogen applications Gold coating All AISI316 diaphragms Special coatings PTFE, FEP, ECTFE, PFA Threaded according ANSI / DIN / EN / JIS M10 1/2” / 3/4” / 1” Other sizes NPT / BSP mm / SAE and others Male / female 8 x A2-70 max 100 bar at 20 °C Process connection Standard Options Bolting Wetted parts Standard Options Upperflange AISI316 (L) Exotic materials Lowerflange AISI316 (L) Exotic materials Hastelloy B2, Monel, Diaphragm AISI316L Tantalum, Titanium Inconel600, Inconel686 Hastelloy-C276, Silver

For technical data sheets and dimensional drawings please refer to our website www.badotherm.com 01/01/2006 rev 2 227 3.1.1. chemical seals minimum ranges for gauges and transmitters per diaphragm Diaphragm diameters dD Min. span in mbar Min. range in bar For process connections For transmitters For pressure gauges PI Diaphragm Thread GP AP DP Ø 63 Ø 100 Ø 160 89 mm 1/2” male Fem 80 80 10 0.6 0.6 0.6 89 mm 3/4” male Fem 80 80 10 0.6 0.6 0.6 89 mm 1” male Fem 80 80 10 0.6 0.6 0.6 temperature effect on transmitter, capillary and seal Diaphragm diameters dD Temp. effect in mbar Temp. effect in mbar...