D821 Flanged diaphragm seal with enlarged diaphragm Main Features Pressure range from 1.6 bar to 40 bar Enlarged diaphragm Temperature -40°C ….400°C Class 150 and 300 NPS 1/2" to 1" PN10 to PN40 DN15 to DN25 Applications Oil & Gas / Chemical Water / Waste water Energy Process technic Technical Data This diaphragm seals with flanged process connection and enlarged diaphragm are used to protect pressure gauges from high temperatures, aggressive or corrosive fluids. The design allows direct mounting on standardized flange connections of pipes or tanks. Due to the enlarged diaphragm this seals can be used for low pressure ranges, despite the small size of the flange. Different diaphragm materials can be selected to adapt the seal to various applications and process fluids. The diaphragm seals can be mounted to pressure gauges or pressure switches directly or with a flexible capillary. For use with electronic transmitters for pressure and differential pressure the product series D9xx is recommended. The fillig fluid of the measuring system has to be choosen compatible to the application. Min.pressure ranges See table on page 2 Temperature -40 °C ... +400 °C Filling liquids LRS1 : -15°C ... +150°C LRS9 : -40 °C ... +400 °C high temperature oil Other liquids on request Mounting Direct or remote from 1.5 to 12 meters Flange material Stainless steel 1.4404 (AISI 316L) Flange types ASME B16.5 / EN1759-1 : class 150 and 300, NPS 1/2" to 1". EN1092-1 : PN 10 to 40, DN 15 to 25. Available flange faces see table on page 2. Other flange types on request. Stainless steel 1.4435 (AISI 316L) Option: Hastelloy (see ordering details on page 3) Diaphragm Maximum pressure According to the PN or the class of the flange and its standardized pressure temperature relation Design and specifications subject to change without notice Materials N° Flange Stainless steel 1.4404 Diaphragm Stainless steel 1.4435 Hastelloy C276 (2.4819) Wetted part Stainless steel 1.4435 Hastelloy C276 (2.4819) Capillary (option) Stainless steel 2015-01-20 D821 www.baumer.com Data sheet A42.18 Page 1 / 3 D821 Flanged diaphragm seal with enlarged diaphragm Dimensions (mm) Minimum pressure ranges depending on diaphragm diameter Ø M 1) Ø M 2) (mm) 1) 2) DN DN63 DN100/150/160 Gauge Compound Gauge Compound 32 0 ... 4 bar -1 ... 9 bar 0 ... 10 bar -1 ... 9 bar 38 0 ... 4 bar -1 ... 9 bar 0 ... 6 bar -1 ... 9 bar -1 ... 5 bar 45 0 ... 1 bar -1 ... 5 bar 0 ... 4 bar 50 0 ... 1 bar -1 ... 3 bar 0 ... 1.6 bar -1 ... 3 bar 54 0 ... 1 bar -1 ... 3 bar 0 ... 1 bar -1 ... 3 bar Fluid temperature -20 ... 100°C, ambiant temperature -10 ... 50°C, others on request Ø M according to dimension tables below Flange dimensions (mm) ANSI B16-5 / EN 1759-1 DN 1/2" 3/4" 1" Class ØD C ØK ØL N f1 Ø d1 Ø M in mm Weight (kg) 150 89 23.6 60.3 15.9 4 1.6 35.1 32 1 300 95 23.6 66.7 15.9 4 1.6 35.1 32 1.1 150 99 25.6 69.8 15.9 4 1.6 42.9 45 1.3 300 117 25.6 82.6 19 4 1.6 42.9 45 1.9 150 108 25.6 79.4 15.9 4 1.6 50.8 50 1.6 300 124 25.6 88.9 19 4 1.6 50.8 50 2.2 ØD C ØK ØL N f1 Ø d1 Ø M in mm Weight (kg) DN PN 15 10/40 95 24 65 14 4 2 45 38 1.3 20 10/40 105 26 75 14 4 2 58 45 1.5 25 10/40 115 26 85 14 4 2 68 54 1.8 Ordering codes for flange faces Face Type ANSI B16-5 Raised face (1.6) Ra = 3.2...6.3 µm Codes G EN 1759-1 Type B (1.6) Ra = 3.2...6.3 µm Codes G EN 1092-1 Type B1 Ra = 3.2...12.5 µm Codes B 2015-01-20 Raised face Drawing Design and specifications subject to change without notice Flange dimensions (mm) EN 1092-1 www.baumer.com Data sheet A42.18 Page 2 / 3 D821 Flanged diaphragm seal with enlarged diaphragm Ordering details D821 D821 – . 2 . Model Flanged diaphragm seals with enlarged diaphragm D821 Mounting Direct mounting St. steel capillary with St. steel protection St. steel capillary with St. steel protection and and PVC sheath St. steel capillary with reinforced St. steel protection For special capillary Ø 2.5 mm (seals mounted on MX, MZ, RP, RD) St. steel capillary Ø 2.5 with St. steel protection St. steel capillary Ø 2.5 with St. steel protection and PVC sheath St. steel capillary Ø 2.5 with reinforced St. steel protection Capillary length Without (direct mounting) 1.5 m 3m 4.5 m 6m 9m 12 m Instrument connection G1/2 female G1/4 female 1/2 NPT female 1/4 NPT female 1/4 NPT male (only with capillary) 1/2 NPT male (only with capillary) 0 1 A B C 2 6 . x Without Diaphragm material St. steel 316L (1.4435) Hastelloy C276 (2.4819) Flange face type See table page 2 (codes) DN G H J 2 3 4 0 E 3 F 6 9 D C D E L H N 8 5 6 ANSI B16-5 / EN 1759-1 1/2" 3/4" 1" EN 1092-1 15 20 25 . 2 4 6 2 1 2 C D F G 2015-01-20 Design and specifications subject to change without notice Flange standard ANSI B16-5 EN 1092-1 EN 1759-1 Flange material St. steel 316L (1.4404) PN ANSI B16-5 / EN 1759-1 Class 150 Class 300 EN 1092-1 PN10 PN16 PN25 PN40 Diaphragm coating – www.baumer.com Data sheet A42.18 Page 3 / 3