Diamond mechanical pump seal, 1.375"

The outstanding attributes of diamond are now available for enhancing mechanical seals. UNCD® Faces are made with a patented form of diamond that is so smooth that the faces can be run directly against conventional seal face materials such as blister resistant carbons and silicon carbides. Unlike other commercial diamond seal faces, UNCD does not require the added cost of having both faces coated with diamond. Besides excellent wear resistance and outstanding low friction, UNCD is chemically inert, non-sticking, and biocompatible. Whether you are a seal user or a seal manufacturer, Advanced Diamond Technologies (ADT) has a convenient way for you to take advantage of the unsurpassed properties of diamond.

For the seal manufacturer or OEM who wants to offer the extraordinary performance of UNCD Faces in their branded products, we welcome the opportunity to partner with you. Customers are asking for diamond seals because of their durability, robustness and energy savings. ADT offers you a time to market advantage and a simple way to embed diamond faces into your products.

For seal users not currently working with a specific seal manufacturer or interested in a trial evaluation of UNCD Faces, UNCD Seals are a convenient and affordable way for you try and prove to yourself the compelling benefits of smooth diamond. If you have standardized on a particular brand of seal, please contact your seal manufacturer or distributor and ask them to make UNCD Faces available in their products.

Click here for the 2008 Award Winner Press Release

Benefits of UNCD:

• Longer lasting seals in demanding applications.
• More resistant to dry and poor lubricating environments.
• Increased energy efficiency.
• Enables the use of hard faces in applications pumping
  thermally sensitive media.
  
• Suitable for a wide range of media.

Products

UNCD Faces (wholesale only): UNCD Faces are available to seal manufacturers to enhance the performance of their branded mechanical seals. ADT offers seal faces in a wide variety of types and sizes to meet the requirements of seal manufacturers. Due to the outstanding low friction of UNCD, these faces perform superbly with a variety of counterface materials, including carbon and SiC.

UNCD Seals: A line of component seals with diamond mating rings and blister resistant carbons is available for seal users wanting to evaluate a mechanical seal already having a UNCD face. A line of UNCD cartridge seals for ANSI pumps will be commercially available soon.

UNCD Faces outperform SiC faces in extreme wear tests. After thousands of hours of operation, UNCD Faces have consistently outlasted SiC faces in poor lubricating conditions of 250-300 °F hot water. In head-to-head industrial tests, UNCD Faces have shown negligible or minimal wear whereas SiC faces experienced deep grooving resulting in pump leakage. UNCD Faces have also been shown, when running against SiC, to have coefficients of friction (CoF) of 0.02-0.04. These are well below the typical values when running SiC in hard-on-hard applications. The reduced friction during operation of UNCD Faces results in reduced seal cavity temperatures when running in ANSI slurry pumping applications. Further technical details can be found here.

Special Applications

For specific applications that are not addressed by our current product offerings, please contact us to discuss your application.