In-line diaphragm seals 1650 sandwich type Main Features Directly integrated in the pipe Mounted between 2 flanges Wetted parts 1.4571 (316Ti) or 1.4404 (316L) 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 Mounting between flanges with FF or RF flange face (types A, B, C, D, E according DIN 2526) Pressure ranges 0 ... 1 bar to 0 ... 40 / 250 bar (see table below) Body material Stainless Steel 1.4571 (316Ti) Diaphragm Stainless Steel 1.4571 (316Ti) or 1.4404 (AISI 316L) Working temperature -20 … 225 °C (depending on the filling fluid) Filling fluids Gaskets LRS1: Vaseline (-15 ... +150 °C) Other filling fluids on request Not included Code DN 1653 25 Pressure gauges (1) NS 50 / 63 mm 0 ... 4 bar NS 100 / 150 / 160 mm 0 ... 4 bar Transmitters (2) P max. (3) 0 ... 1 bar 40 / 250 bar 1655 40 0 ... 1.6 bar 0 ... 1.6 bar 0 ... 1 bar 40 / 250 bar 1656 50 0 ... 1.6 bar 0 ... 1.6 bar 0 ... 1 bar 40 / 250 bar 1657 65 0 ... 1.6 bar 0 ... 1.6 bar 0 ... 1 bar 40 / 250 bar 1658 80 0 ... 1.6 bar 0 ... 1.6 bar 0 ... 1 bar 40 / 250 bar 1659 100 0 ... 1.6 bar 0 ... 1.6 bar 0 ... 1 bar 40 / 250 bar (1) (2) 2015-01-29 (3) and corresponding compound pressure ranges lower pressure ranges on request depending on the pressure limitation of the used flanges and gaskets (not part of the delivery). Design and specifications subject to change without notice Ordering code / Minimum pressure ranges www.baumer.com Data sheet A44. D1.234 Page 1 / 2 In-line diaphragm seals 1650 sandwich type Dimensions G½ A DN h h S 27 80 DN A h (standard) h (long extension) Weight kg Inner shape 25 63 42 82 1.8 6-sided 40 85 53 93 2.8 6-sided 50 95 58 98 3.6 6-sided 65 115 68 108 4.8 8-sided 80 130 75 115 5.5 8-sided 100 148 84 124 6.4 8-sided Ordering example MEX 5 – D 3 0 . B22 / 1653 _ 9007 _ 0125 _ LRS1 In-line diaphragm seal, DN 25 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 Dimension chart www.baumer.com Data sheet A44. D1.234 Page 2 / 2