What should be considered regarding the material and sealing type of pressure gauges for hydrogen?
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As the title suggests, feel free to join the discussion on conventional instruments used for hydrogen – what are the requirements regarding the materials of pressure transmitters and temperature transmitters, and how should the sealing methods be chosen?
Let’s discuss the impact of hydrogen on the diaphragms of pressure transmitters. API551 contains information regarding measures to prevent hydrogen penetration into the diaphragms, as well as recommendations for using gold-plated diaphragms and other precautions in such cases; details are provided below. Additionally, EJA and ROSEMOUNT offer products with gold-plated or diamond-coated diaphragms, along with information on their use; see the attachments.