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What to Pay Attention to When Using Gold-Plated Diaphragms?

2025-01-17 12:52

differential pressure transmitter with dual remote seal

Recently, we have successfully produced a custom-made gold-plated diaphragm for our customer’s differential pressure transmitter with dual remote seals. The product features one side with direct mounting and the other side equipped with a capillary remote seal. The remote seal diaphragm has undergone a special gold-plating process to enhance performance and durability in challenging environments.

Gold-plated diaphragms are widely used in applications that require resistance to corrosion, enhanced sensitivity, and extended service life. However, when using gold-plated diaphragms, there are several important considerations to ensure optimal performance:

  • Compatibility with Media: Gold-plated diaphragms are ideal for use in corrosive or aggressive environments. However, it's essential to verify the compatibility of the diaphragm with the media it will be in contact with. Certain chemicals or high-temperature fluids can degrade the gold-plated layer or affect its performance.

  • Surface Integrity: The gold-plating process is delicate, and any damage to the diaphragm’s surface can compromise its effectiveness. Ensure that the diaphragm is handled carefully during installation and maintenance to avoid scratches, dents, or other forms of physical damage.

  • Pressure Range: Gold-plated diaphragms are suitable for low and medium-pressure applications, but it’s crucial to stay within the specified pressure range to prevent deformation or failure of the diaphragm.

  • Temperature Sensitivity: While gold is known for its high resistance to oxidation, it is still important to consider the operational temperature range. Excessive heat can lead to gold degradation or affect the integrity of the diaphragm's seal.

  • Seal Maintenance: The remote seal with a gold-plated diaphragm requires regular inspection to ensure there are no leaks or blockages in the capillary tube. Proper sealing ensures accurate pressure measurements and prevents contamination of the measurement system.

By paying attention to these factors, you can ensure the longevity and reliability of your gold-plated diaphragm-equipped devices, improving their performance in demanding industrial applications.

At AUTO Instrument, we welcome inquiries from customers around the world. We can provide custom solutions tailored to your specific requirements and help solve your unique challenges. Whether it’s a special configuration or a unique material, we are here to assist you in achieving the best possible results for your applications.


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