• Designed for use with differential pressure transmitters in liquid
level applications
• Available in either single flange or double flange connection for
direct installation
• 100% helium leak tested to 1 x 10-4 ml/s for performance and reliability
• 2120 Series valves also feature a replaceable Acetal seat, and
straight through porting for bidirectional, high capacity flow and easy
roddable cleaning
• Blow-out 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; PTFE or Graphite packing optional
• All stem threads are rolled for strength and ease of operation
• One-piece bonnet with a metal-to-metal seal to the valve body below
the bonnet threads
• Slotted spring pin to prevent accidental loosening
• Color coded vinyl dust caps for bonnets and stems (non-packing)