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Gold Plating Diaphragm Seals

Gold plating is often used on diaphragm seals to enhance their resistance to corrosion, especially in environments where the media is highly corrosive or contains trace elements that could damage the seal over time. Gold is chemically inert, which makes it an excellent protective layer against a wide range of corrosive substances, including acids, alkalis, and saline solutions. Additionally, gold plating can improve the overall durability and lifespan of the diaphragm seal, reducing the frequency of maintenance and replacement, which is crucial in critical industrial processes.

Specifications

  • Plating Thickness: 5 to 25 microns (Non-standard Thickness on request)

  • Plating Process: Electroplating or chemical deposition, depending on the desired thickness and end users process requirement

  • Purity of Gold: Typically, 99.9% pure (24K), although 18K gold plating is sometimes used depending on the application's specific needs

  • Process connection: Flange connection - ASME / ANSI, DIN standard, Threaded BSP / NPT Male Female

  • Ranges: Flange seal Tetroseal: (-) 1 to 300 Bar, OPTIMUS Series: (-)1 to 100 Bar, Threaded Plug seal model: (-)1 to 400 Bar

  • Standard Accuracy: ±0.1% of span

Options

  • Diaphragm material: AISI 316L, Hastelloy C-276, Tantalum, Other material on request

  • Lower Flange housing: AISI 316L, Hastelloy C-276, Other material on request

  • Standard portion of Gold plating: All wetted portion (Diaphragm surface + Sealing Face), Optionally we can provide over only
    Diaphragm surface, In this case sealing face shall be in base material

Downloads

Brochure

Drawings

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