DT1 - DT2 - DT3 - DT5 - DT8 Threaded diaphragm seals Main Features DT1 Wide range of threated Option : exotic materials for process connections Internal welded diaphragm Lower part exchangeable wetted parts Option : with cleaning ring DT3 Applications Oil & Gas / Chemical Water & Waste water Energy Transportation & Logistics Machinery DT5 Technical Data This universal chemical seals with threaded process connection are used to protect pressure gauges from high temperatures, aggressive, crystalizing or corrosive fluids. Chemical seals can be mounted to mechanical pressure gauges, switches or transmitters directly or with a flexible capillary. The filling fluid of the measuring system has to be choosen compatible to the application. A wide choice of materials for the wetted parts allow the user to adapt the seal to many different applications and process fluids. Pressure ranges 0 ... 160 mbar to 0 ... 1000 bar (see ordering details) Wetted parts Stainless steel 1.4404 (AISI 316L) Stainless steel 1.4435 (AISI 316L) Option : exotic materials or coatings (see ordering details) Cleaning ring (option) With 1 flushing port 1/8 NPT female Only DT1, DT2, DT3 Gaskets DT1, DT2, DT3 : PTFE (max. 200°C) DT5 : stainless steel 1.4404 (max. 200°C) DT8 : graphite (max. 400°C) The lower part of the product family DT can be exchanged very easy without new calibration of the filled system. This allows the user to adapt the system to different process connections. Upper parts alone are supplied with screws and gasket. Materials DT2 3 N° 6 5 4 6 7 2 DT3 1 DT1 DT2 DT3 Upper part 1 1.4404 (316L) Lower part 2 1.4404 (316L) 1) Diaphragm 3 1.4435 (316L) 1) Cleaning ring 4 Gaskets 5 Fixing flanges 3) 6 Bolts/Nuts 7 1.4404 (316L)1) PTFE PTFE 1.4301 (304) 2) 1.4301 (304) 2) DT5 DT8 - - PTFE 1.4404 Graphite - Carbon steel 1.4404 (316L) Carbon steel 1.4404 (316L) Others materials see ordering details on page 3 1.4404 (316L) with option 1999 3) Stamped parts for DT1 and DT2, turned parts for DT5 and DT8 1) 2) 3 2 www.baumer.com 2014-09-17 5 4 Design and specifications subject to change without notice 1 7 Data sheet A41.40 Page 1 / 3 DT1 - DT2 - DT3 - DT5 - DT8 Threaded diaphragm seals Dimensions - Types of mounting Dimensions of counter flange ØR Screw holes (see table below) ØS ØB ØR Screw holes (see table below) V 2* A ØC L ØT ØT ØU ØU * Only DT1/DT2 DT8 DT1/DT2/DT3/DT5 ØB A ØC Weight kg DT1 85 38 10.5 0.460 DT2 85 30 8.5 0.500 DT3 120 43 5.5 0.660 DT5 85 43 10.5 0.800 DT8 85 43 10.5 0.790 ØS 0 / -0.1 L 50.1 -0.05 / +0 46 - 0.6 59.1 -0.05 / +0 55 - 0.6 96 - 40.1 -0.05 / +0 36 - 50.5 -0 / +0.05 - 2.25 -0 / +0.05 ØR 101.1 -0 / +0.2 V V Upper part Screws Gaskets ØT 0 / -0.2 ØU ±0.1 -0 / +0.1 45 65 8 x M10 49.8 x 45.8 x 1 (PTFE) -0 / +0.1 54 70 8 x M8 58.8 x 54.8 x 1 (PTFE) 0.6 -0 / +0.1 94 110 16 x M5 101 x 97 x 1 (PTFE) 0.8 -0 / +0.1 35 65 8 x M10 40 x 36 x 1 (1.4404) 45 65 8 x M10 50.5 x 46 x 3.3 (graphite) 2.5 -0.1 / +0 Upper part + lower part ØB A1 A2 ØB 27 A1 A2 ØB Weight kg DT1 67 66 85 1.20 DT2 59 58 85 1.10 DT3 73 64 120 1.40 DT5 72 73 85 1.75 DT8 72 73 85 1.70 A1 A2 ØB Weight kg DT1 82 81 85 1.60 DT2 77 76 85 1.60 DT3 88 78 120 1.90 Hexa. 23 Male process connection Female process connection Upper part + cleaning ring + lower part A2 A1 27 Hexa. 23 Male process connection 2014-09-17 Female process connection Design and specifications subject to change without notice ØB ØB www.baumer.com Data sheet A41.40 Page 2 / 3 DT1 - DT2 - DT3 - DT5 - DT8 Threaded diaphragm seals Ordering details DTx 2 Min. range 1) -1...0 bar / -1...3 bar / -1...9 bar / -1...39 bar / 0...160 mbar 0... 1 bar 0... 10 bar 0.. 40 bar 0...160 bar P. max 25 bar 40 bar 160 bar 400 bar 1000 bar Process connection Without lower part Male thread Female thread Lower part coating No coating PTFE 20 µm PTFE 2 mm HALAR 200 µm 10) www.baumer.com . L H N 8 2 3 5 6 7 9 0 1 2 4 7 0 2 3 5 6 9 max. max. max. max. 10 10 10 10 . 0 2 3 5 6 9 C D E F bar/40°C bar/80°C bar/80°C bar/80°C . G½ ½ NPT 8) G⅜ 9) G¼ 2) ¼ NPT 2) 8) 0 3 6 J 2 5 G½ 8) ½ NPT 8) G¼ 2) 8) ¼ NPT 2) 8) L N H 8 0 1 3 4 max. 10 bar/100°C Valid for assembly with 100 mm pressure gauges and temperature between -20 and +70°C. For other conditions, the minimum pressure ranges may be different. Please contact Baumer 2) Max. 600 bar 3) No diaphragm coatings on Tantalum diaphragm available 4) Thin anti-sticking coating, limited corrosion resistance 5) Not for vaccum and compound pressure ranges 1) . Only available for models DT1, DT2 and DT3 Cleaning rings only available for models DT1, DT2 and DT3 8) Not available with coating on the lower part 9) Max. 800 bar 10) No lower part coating available with cleaning ring 6) 7) Data sheet A41.40 Design and specifications subject to change without notice Lower part material Without lower part Stainless steel 316L (1.4404) Uranus B6 (1.4539) Hastelloy B (2.4617) Hastelloy C276 (2.4819) Monel 400 (2.4360) PVC PVDF PPH PTFE . DT3 DT2 DT1 DT8 DT5 2 Instrument connection G½ female G¼ female 2) ½ NPT female ¼ NPT female 2) Diaphragm material Stainless steel 316L (1.4435) Uranus B6 (1.4539) Hastelloy B (2.4617) Hastelloy C276 (2.4819) Tantalum 3) Monel 400 (2.4360) Diaphragm coating No coating PTFE 20 µm 4) PTFE 250 µm adhesive liner 5) 6) HALAR 200 µm Gold 15 µm Cleaning ring material 7) Without cleaning ring Stainless steel 316L (1.4404) Uranus B6 (1.4539) Hastelloy B (2.4617) Hastelloy C276 (2.4819) Monel 400 (2.4360) . 2014-09-17 Model For low pressure For normal pressure For medium high pressure For high pressure For very high pressure Upper part material Stainless steel 1.4404 (316L) Page 3 / 3