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Pressure Transmitter in liquid with 25% to 30% salt content

Created by: Nhut_Hien at: 8/26/2010 11:06 AM (8 Replies)

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8/26/2010 11:06 AM	Rate (0)
Nhut_Hien Posts: 23 Rating: (0)	Hi there, We want to measure Pressure in liquid with 25% to 30% salt content. We intent to use: * SITRANS P300 PRESSURE TRANSMITTERS FOR RELATIVE AND ABSOLUTE PRESSURE (order code: P7MF8023-1CY14-1AJ2) * And DIAPHRAGM SEAL, TYPE 7MF4910 PRESSURE EQUIPMENT DIREKTIVE F. But I don't know which material is suitable to use in liquid with 25% to 30% salt content. And, temperature is up to 100 C. degree. Wetted parts materials • Stainless steel 316L - without foil - with PTFE coating - with ECTFE coating2) - with PFA coating • Monel 400, mat. No. 2.4360 G • Hastelloy C276, mat. No. 2.4819 J • Hastelloy C4, mat. No. 2.4610 U • Tantalum Please advise us. Thank you very much.
Nhut_Hien Posts: 23 Rating: (0)
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8/27/2010 6:54 PM	Rate (0)
danw Gold Expert Joined: 3/28/2010 Last visit: 12/30/2025 Posts: 1202 Rating: (220)	What materials of construction are used for the piping ?

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8/30/2010 3:52 AM	Rate (0)
Nhut_Hien Posts: 23 Rating: (0)	The material of pipe is SS 316L.
Nhut_Hien Posts: 23 Rating: (0)
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9/1/2010 3:57 AM	Rate (0)
danw Gold Expert Joined: 3/28/2010 Last visit: 12/30/2025 Posts: 1202 Rating: (220)	See attached pages for material properties of Hastelly C276, Monel and Tantalum. Pages from Handbook of Corrosion Engineering by Pierre R. Roberge McGraw-Hill, 1999, ISBN 0-07-076516-2 Attachment page 687 (111) Monel 400 properties.pdf (365 Downloads)

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9/1/2010 3:59 AM	Rate (0)
danw Gold Expert Joined: 3/28/2010 Last visit: 12/30/2025 Posts: 1202 Rating: (220)	see attachment Attachment page 682 (106) Hastelloy C276 properties.pdf (382 Downloads)

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9/1/2010 4:01 AM	Rate (0)
danw Gold Expert Joined: 3/28/2010 Last visit: 12/30/2025 Posts: 1202 Rating: (220)	see attachment (no means to upload multiple attachments, grrrrrr . . . . .) Attachment pages 703-707 (127-131) Tantalum properties.pdf (399 Downloads)

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9/1/2010 6:47 AM	Rate (0)
Nhut_Hien Posts: 23 Rating: (0)	Hi, Thank you for your document. How about if I choose Platinium in very corrosive liquid and high temperature? You have any document to show about it? Please advise us.
Nhut_Hien Posts: 23 Rating: (0)
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9/2/2010 1:36 AM	Rate (0)
danw Gold Expert Joined: 3/28/2010 Last visit: 12/30/2025 Posts: 1202 Rating: (220)	Platinum is not covered by the corrosion guides that I have access to. It is not one of the listed wetted materials for the Siemens pressure transmitter.

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9/6/2010 4:36 AM	Rate (0)
Nhut_Hien Posts: 23 Rating: (0)	How about if I choose SS316 with PTFE coating for this? With pressure up to 6 bar and temperature <100 and the others >100 C. Degree. And one more problem: the pressure transmitter will be installed on pipe with the smallest diameter 38mm. Which process connection can be used in this case? And we attach the detailed specification. Please advise us. Attachment 00.Spec.Pressure Transmitter list.pdf (388 Downloads)
Nhut_Hien Posts: 23 Rating: (0)
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