316SS Stem with full disc engagement. Full seat design eliminates gaskets. Seat overtightening prevention. Lockout-Tagout – lever handle molded padlock provision and 2-molded valve body tag holes. Highly visible O° to 90° position indicator with 19 fine adjustment locking positions. ISO 5211 F07 – F14 bolt circle on top flange. Polypropylene stem retainer. Spherical disc design. Non-wetted stem and body – Isolated from the media. Plasgear operator.