In-line diaphragm seals 1680 with thread for compression fittings Main Features Directly integrated in the pipe Excellent cleaning behaviour Pressure ranges up to 250 bar Wetted parts 1.4435 / 1.4404 (316L) or 1.4571 (316Ti) Easy and fast installation Applications Oil & Gas Chemical industry Water & Waste water Energy Description This in-line diaphragm seals are used to protect pressure gauges from high temperature, aggressive or corrosive fluids. Due to the integration as part of the pipe line these seals are especially suitable for fluids with high viscosity or a tendency to crystallize. Diaphragm 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. Process connection Threaded connection for compression fittings according DIN 2353, type L Pressure ranges 0 ... 1 bar to 0 ... 250 bar (see table below) Body material Stainless Steel 1.4571 (316Ti) Diaphragm Stainless Steel 1.4435 or 1.4404 (AISI 316L) or 1.4571 (316Ti) Working temperature -20 … 225 °C (depending on the filling fluid) Filling fluids LRS1: Vaseline (-15 ... +150 °C) Other filling fluids on request Code Pipe 1683 Pressure gauges (1) Transmitters (2) P max. 0 ... 16 bar 0 ... 1 bar 250 bar NS 50 / 63 mm NS 100 / 150 / 160 mm 12 x 1.5 0 ... 6 bar 1685 18 x 1.5 0 ... 4 bar 0 ... 10 bar 0 ... 1 bar 160 bar 1686 22 x 2 0 ... 2.5 bar 0 ... 6 bar 0 ... 1 bar 160 bar 1687 28 x 2 0 ... 1.6 bar 0 ... 4 bar 0 ... 1 bar 100 bar 1688 35 x 2 0 ... 1.6 bar 0 ... 4 bar 0 ... 1 bar 100 bar 1689 42 x 3 0 ... 1.6 bar 0 ... 4 bar 0 ... 1 bar 100 bar (1) and corresponding compound pressure ranges lower pressure ranges on request 2015-01-29 (2) Design and specifications subject to change without notice Ordering code / Minimum pressure ranges www.baumer.com Data sheet A44. D1.236 Page 1 / 2 In-line diaphragm seals 1680 with thread for compression fittings Dimensions G Contact surface x M Pipe O. D. h S L1 L Dimension chart 1 Separator body 2 Union nut form A acc. to DIN 3870 1 2 3 Pipe M L L1 G S h x Weight kg Inner shape 0.7 4-sided 12 x 1.5 M18 x 1.5 150 136 G¼ 27 13.5 10 3 Cutting ring acc. to DIN 3861 18 x 1.5 M26 x 1.5 135 120 G¼ 27 13.5 15.5 0.5 4-sided 22 x 2 M30 x 2 130 115 G½ 32 16 19 0.8 4-sided 4 Pipe 28 x 2 M36 x 2 120 105 G½ 41 20.5 22.5 1.0 4-sided 35 x 2 M45 x 2 120 99 G½ 46 23 29 1.1 6-sided 42 x 3 M52 x 2 120 98 G½ 55 27.5 35 1.5 6-sided 4 Ordering example MEX 5 – D 2 0 . B22 / 1683 _ 9007 _ 0125 _ LRS1 In-line diaphragm seal, for pipes 12 x 1.5 Option: Adjustment at specific fluid temperature Adjustment temperature: 125°C 2015-01-29 Filling fluid LRS1: Vaseline (-15 ... +150 °C) Design and specifications subject to change without notice Connection example www.baumer.com Data sheet A44. D1.236 Page 2 / 2