The S-9 series is a fully customizable parallel gap electrode with an insulator (spacer) that binds the two halves together and establishes the width of the gap. This series is usually chosen when the customer's application requires a shape or size that doesn't fit within one of our other standard electrodes. We don’t advise using the S-9 series parts unless no other standard design will work, as this is a rather expensive custom design.
Understanding AIT part numbers is very simple. Various dimensions on the drawing are represented by letters, which correspond to values in the part number. The beginning of the part number establishes the electrode series and material, followed by various dimensions. You can request a quote by filling in dimensions below in the custom part number and indicating the quantity you wish to have quoted in the comments section.
There are no standard S-9 sizes. Each S-9 is custom built.