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Table of Contents
Sulfur Bottom Outlet Valve Disassembly Instructions
1 Preparation
These instructions are specific to the disassembly of A-522-C2-CS-SJ-SU-ST, A-522-C2-MO-SJ-SU-ST, A-522-C2-MO-
SJ-SU-TF and A-522-C2-MO-SJ-SU-SMBC-ST Bottom Outlet Valve models. For more extensive maintenance
instructions, please refer to Midland's Installation, Operation and Maintenance Instructions for A-520/522 ball valves.
•
Exercise normal safety precautions for the commodity involved
•
Discard all soft parts being replaced
•
Inspect and clean all parts thoroughly per Midland's Installation, Operation and Maintenance Instructions for A-
520/522
2 Valve Details
Figure 2-1 Component Identifications
Manual content is subject to change.
Visit midlandmfg.com for latest manual revision and revision history.
P/N: A-522-C2-XX-SJ-SU, Rev. 0
Issue Date: August 6, 2020
Page 1 of 5
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Summary of Contents for Dover OPW Midland A-522-C2-CS-SJ-SU-ST
- Page 1 Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. Sulfur Bottom Outlet Valve Disassembly Instructions 1 Preparation These instructions are specific to the disassembly of A-522-C2-CS-SJ-SU-ST, A-522-C2-MO-SJ-SU-ST, A-522-C2-MO- SJ-SU-TF and A-522-C2-MO-SJ-SU-SMBC-ST Bottom Outlet Valve models. For more extensive maintenance instructions, please refer to Midland’s Installation, Operation and Maintenance Instructions for A-520/522 ball valves.
- Page 2 Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. A-522-C2-CS-SJ-SU A-522-C2-MO-SJ-SU ITEM PART NAME PART NO. MATERIAL PART NO. MATERIAL CAP ASSEMBLY SEE TABLE SEE TABLE SEE TABLE SEE TABLE STEM 520-2-SS STAINLESS 520-2-SS STAINLESS BALL 520-30-MO...
- Page 3 Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. 3 Reassembly Procedure Refer to Valve Details for valve component identification during the repair kit reassembly process. Set the valve to the closed position. This must be done to allow removal of the valve ball.
- Page 4 Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. Remove retaining ring (Part Number 522-18-MOL in Figure 3-3). Reach both hands into the valve body (item 4) on either side of the valve ball (item 3).
- Page 5 Manual content is subject to change. Visit midlandmfg.com for latest manual revision and revision history. ® Remove the Teflon packing (item 5) from the valve-stem bore. Avoid scratching or gouging the interior surfaces of the valve-stem bore. ® Figure 3-8 Remove Teflon Packing Remove ball seals (Item 10) and O-rings from body (Item 4).
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