A-720, A-721, A-721B, A-724 Angle Valve Update
Midland recently updated the design and operating safety procedure for the A-72X family of valves. See the table below to download the documents with the details about these updates.
NOTE: As of June 21, 2018 all new production of Midland A-720 Series Valves will be compliant and shipped with the redesigned packing arrangement
Corrective Action New Spacer/Wiper Design
- During next valve requalification or voluntary servicing
- Change out of stem packing components (all other major components do not need to be changed if in good condition)
- Install new spacer with wiper ring to prevent packing debris from entering stem & body threads
- Replace wave spring (if used) with coil spring
- Install new gold-colored packing lock nut for visual indication that corrective action has been implemented