Technical Service Bulletin Notice:
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.

FileTypeSizeUploaded onDownload
2 Inch Angle Valve Kit Request FormDOCX45.20 KB20 Jun, 2018 Download
Midland Letter to Our CustomersPDF113.11 KB19 Jun, 2018 Download
Corrective Action Plan Information SheetPDF392.21 KB19 Jun, 2018 Download
Midland Technical Service Bulletin 20180525-01PDF300.28 KB06 Jun, 2018 Download
Midland Technical Service Bulletin 20180525-02PDF574.08 KB06 Jun, 2018 Download
A-720/A-721/A-721B/A-724 2" Angle Valve IOMPDF1.75 MB04 Jun, 2015 Download
a-170

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