In-line diaphragm seals 1690 with smooth pipe 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 Smooth pipe for compression fittings e.g. according DIN 2353, type L Pressure ranges 0 ... 1 bar to 0 ... 250 bar (see table below) Body material Stainless Steel 1.4571 (316Ti) or 1.4435 (316L) 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 1693 12 x 1.5 Pressure gauges (1) NS 50 / 63 mm NS 100 / 150 / 160 mm 0 ... 10 bar 0 ... 25 bar Transmitters (2) P max. 0 ... 1 bar 250 bar 1695 18 x 1.5 0 ... 6 bar 0 ... 16 bar 0 ... 1 bar 160 bar 1696 22 x 2 0 ... 4 bar 0 ... 10 bar 0 ... 1 bar 160 bar 1697 28 x 2 0 ... 1.6 bar 0 ... 4 bar 0 ... 1 bar 100 bar 1698 35 x 2 0 ... 1.6 bar 0 ... 4 bar 0 ... 1 bar 100 bar 1699 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 2015-02-02 (2) Design and specifications subject to change without notice Ordering code / Minimum pressure ranges www.baumer.com Data sheet A44. D1.237 Page 1 / 2 In-line diaphragm seals 1690 with smooth pipe for compression fittings Dimensions G h S A Inner shape 6-sided for Pipe outside diameter (A) 22 and 42 L G h S A Inner shape 4-sided for Pipe outside diameter (A) 12 and 18 L Dimension chart 1 Separator body 2 Compression fitting a Union nut b Cutting ring c Threaded body 1 2a 2b 2c Pipe L h G S Weight kg Inner shape 12 x 1.5 120 16 G½ 27 0.3 4-sided 18 x 1.5 120 16 G½ 27 0.3 4-sided 22 x 2 120 16 G½ 32 0.4 4-sided 28 x 2 120 18 G½ 36 0.5 4-sided 35 x 2 120 20 G½ 41 0.6 6-sided 42 x 3 120 25 G½ 50 0.7 6-sided Ordering example MEX 5 – D 3 0 . B22 / 1693 _ 9007 _ 0125 _ LRS1 In-line diaphragm seal, for pipes 12 x 1.5 Option: Adjustment at specific fluid temperature Adjustment temperature: 125°C 2015-02-02 Filling fluid LRS1: Vaseline (-15 ... +150 °C) Design and specifications subject to change without notice Connection example www.baumer.com Data sheet A44. D1.237 Page 2 / 2