In-line diaphragm seals 1520 with connection SMS 1146 Main Features Directly integrated in the pipe Excellent cleaning behaviour Wetted parts 1.4435 / 1.4404 (316L) or 1.4571 (316Ti) Compatible to SIP and CIP processes Easy and fast installation Applications Food & Beverage Laboratory & Medical Description This in-line diaphragm seals are used to design hygienic process connections for pressure gauges and protect the pressure gauges from high temperatures and aggressive process fluids. Process connection SMS 1146 In-line diaphragm seals with hygienic process connections ensure efficient cleaning processes and avoid pollutions and developing of bacterias in hygienic production processes. Body material 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. For hygienic applications a choice of FDA conform filling fluids is available. Surface roughness Pressure ranges 0 ... 1 bar to 0 ... 40 bar (see table below) Stainless Steel 1.4435 (AISI 316L) or 1.4571 (AISI 316Ti) Stainless Steel 1.4435 or 1.4404 (AISI 316L) Diaphragm Wetted parts Ra ≤ 0.8 µm Option 1359: electropolished, Ra ≤ 0.5 µm (except welding) Working temperature -20 … 225 °C (depending on the filling fluid) Filling fluids LRS1: Vaseline (-15 ... +150 °C, FDA conform) LRS10: Vaseline (-20 ... +225 °C, FDA conform) Other filling fluids on request Gaskets Not included Pressure gauges (1) Code DN 1521 (4) 1" 0 ... 1.6 bar 0 ... 2.5 bar 0 ... 1 bar 40 bar 1523 (5) 1 ½" 0 ... 1.6 bar 0 ... 2.5 bar 0 ... 1 bar 40 bar 1524 (5) 2" 0 ... 1.6 bar 0 ... 1.6 bar 0 ... 1 bar 40 bar 1525 2 ½" 0 ... 1.6 bar 0 ... 1.6 bar 0 ... 1 bar 40 bar 3" 0 ... 1.6 bar 0 ... 1.6 bar 0 ... 1 bar 40 bar (5) 1526 (4) (1) (2) (3) (4) NS 100-150-160 mm Transmitters (2) P max. (3) and corresponding compound pressure ranges lower pressure ranges on request depending on the used fixing elements (not part of the delivery) body material 1.4435 (AISI 316L) body material 1.4571 (AISI 316Ti). 2015-01-21 (5) NS 50-63 mm Design and specifications subject to change without notice Ordering code / Minimum pressure ranges www.baumer.com Data sheet A43. D1.229 Page 1 / 2 In-line diaphragm seals 1520 with connection SMS 1146 Dimensions G A DN h S d L Connection example Dimension chart DN A L h G d S Weight kg Inner shape 2 Union nut 1" 40 x 1/6 120 31 G½ 13 27 1.0 4-sided 3 Gasket 1 ½" 60 x 1/6 120 41 G½ 18 27 2.0 6-sided 2" 70 x 1/6 100 46 G½ 18 27 1.9 6-sided 2 ½" 85 x 1/6 100 54 G½ 22 27 2.5 8-sided 3" 98 x 1/6 100 60 G½ 22 27 3.0 8-sided 1 Separator body 4 Pipe with liner 2 3 4 Ordering example MEX 5 – D 3 0 . B22 / 1521 _ 1359 _ LRS1 In-line diaphragm seal, DN 1" Option: Electropolished, Ra ≤ 0.5 µm (except welding) 2015-01-21 Filling fluid LRS1: Vaseline (-15 ... +150 °C, FDA conform) Design and specifications subject to change without notice 1 www.baumer.com Data sheet A43. D1.229 Page 2 / 2