MATERIAL OF CONTRUCTION:
MATERIAL OF CONTRUCTION:
| Barrel | Carbon Steel |
| Stem | Carbon Steel |
| Plating | Zinc with Yellow Dichromate |
| Bearing | Chrome ("S" and "9SS" Series only) |
| O-Rings* | Buna-N (Standard) |
| Backup Rings | Teflon™ |
| * Optional seals available, see special seal designator information below | |