Block and bleed design allows pressure to be bleed-off without disturbing the permanent piping installation, allowing quick and easy removal or replacement of instruments
100% helium leak tested to 1 x 10-4 ml/s for performance and reliability
Replaceable acetal seat and straight through porting for bidirectional, high-capacity flow and easy roddable cleaning
Blowout-proof stem provides a secondary stem seal in the full open position
FKM O-ring seal and PTFE back-up ring below the stem threads to protect from corrosion and galling
All stem threads are rolled for strength and ease of operation
1-piece bonnet with a metal-to-metal seal to the valve body below the bonnet threads
Slotted spring pin to prevent accidental loosening
Vinyl dust cap for bonnet and stem
0.09 in bleed hole located on the bottom is controlled by a 1/4-20 UNF 2A bleed screw