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Dover OPW Midland A-522-C2-CS-SJ-SU-ST, Инструкции по разборке

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P/N: A-522-C2-XX-SJ-SU, Rev. 0 

Issue Date: August 6, 2020 

Page 1 of 5 

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. 

•

 

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 

 

 

Содержание OPW Midland A-522-C2-CS-SJ-SU-ST

Страница 1: ...22 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 Ins...

Страница 2: ...F TEFLON 520 11 01 TF TEFLON 12 1 WASHER THRUST 520 12 01 TF TEFLON 520 12 01 TF TEFLON 13 1 LOCKNUT HEX THIN 1 1 8 12UNF NYLON INSERT 520 13 CS STEEL PLATED 520 13 CS STEEL PLATED 14 1 NAMEPLATE 522 13 88 SS STAINLESS 522 13 86 SS STAINLESS 15 1 HANDLE 520 15 CS STEEL 52D 15 CS STEEL 16 1 WASHER HANDLE 520 16 CS STEEL 520 16 CS STEEL 17 1 BOLT HANDLE 520 17 CS STEEL 520 17 CS STEEL 18 19 20 ITEMS...

Страница 3: ... be done to allow removal of the valve ball Figure 3 1 Set to Closed Position Locate the valve on a bench preferably on a pressure test fixture so it may be bolted for safety and rigidity during hardware removal Secure it with the eight bolt flange Figure 3 2 Valve Inverted Remove the outlet cap assembly if present Remove tack welds from retaining ring holding ball seal Item 10 in place in cap ite...

Страница 4: ...n a padded surface Figure 3 4 Remove Valve Ball Remove the locknut Item 13 from the valve stem item 2 by turning it counterclockwise Figure 3 5 Remove Locknut Remove the stop plate item 8 and then carefully press the valve stem item 2 into the body item 4 cavity and remove it Figure 3 6 Remove Stop Plate and Stem Remove the stainless steel spacer collar Item 6 from the valve stem bore Figure 3 7 R...

Страница 5: ... cap Item 1 Sealing surface should be clean and free of any imperfections per component inspections in 4 2 of A 520 522 IOM Wipe down one of the ball seals Item 10 and then place it into the bottom seat of the body valve Item 4 flat side downwards Be very careful to avoid damaging the seat during installation Figure 3 9 Install Ball Seal Install retaining ring Part Number 522 18 MOL in Figure 3 3 ...

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