Repair Manuals

Note: Midland denotes "through" with "/"

Ex: If one were looking for an IOM for the A-14379, they would refer to the A-14150/14499 IOM because it refers to models A-14150 through A-14499.

PRESSURE RELIEF VALVES - Internal Style

FileTypeSizeDownload
A-1000 Series Internal Style IOM
A-1000, Rev. 3.7 Issue Date: May, 19, 2025 Supersedes: A-1000, Rev. 3.6 		PDF3.92 MB Download
A-1076/A-1281 Internal-Style PRV IOM
A-1076/A-1281, Rev. 2.1 Issue Date: April 10, 2018 Supersedes: A-1076/A-1281, Rev. 2 		PDF2.25 MB Download
A-2000 Series Internal Style IOM
Doc. No. A-2000, Rev. 1.6, 05/21 Replaces: A-2000, Rev. 1.5, 01/21 		PDF8.95 MB Download
A-22075/22076 High-Flow Internal-Style PRV IOM
A-22075/6, Rev. 1.2 Issue Date: November, 2021 Supersedes: A-22075/6, Rev. 1.1 		PDF6.50 MB Download
A-3000 Series Internal Style IOM
A-3000-M, Rev. 4.6 Issue Date: July 21, 2025 Supersedes: A-3000-M, Rev. 4.5 		PDF3.61 MB Download
A-3100 Series Internal Style IOM
A-3000-M, Rev. 4.6 Issue Date: July 21, 2025 Supersedes: A-3000-M, Rev. 4.5 		PDF3.61 MB Download
A-3200 Series Internal Style IOM
A-3000-M, Rev. 4.6 Issue Date: July 21, 2025 Supersedes: A-3000-M, Rev. 4.5 		PDF3.61 MB Download
A-3400 Series Internal Style IOM
A-3000-M, Rev. 4.6 Issue Date: July 21, 2025 Supersedes: A-3000-M, Rev. 4.5 		PDF3.61 MB Download
A-35000 Series Internal Style IOM
A-3000-M, Rev. 4.6 Issue Date: July 21, 2025 Supersedes: A-3000-M, Rev. 4.5 		PDF3.61 MB Download
A-37000 Series Internal Style IOM
A-3000-M, Rev. 4.6 Issue Date: July 21, 2025 Supersedes: A-3000-M, Rev. 4.5 		PDF3.61 MB Download

PRESSURE RELIEF VALVES - External Style

FileTypeSizeDownload
A-1400 Series External Style IOM
Doc. No. A-1400/A-15000, Rev. 3.2, 03/25 Supersedes: Rev. 3.1, 07/16 		PDF2.14 MB Download
A-1402C Series External-Style PRV IOM
A-1402C, Rev. 1.6 Issue Date: Feb. 10, 2025 Supersedes: A-1402C, Rev. 1.5 		PDF1.12 MB Download
A-14150/14499 External-Style PRV IOM
A-14150/A-14499, Rev. 1.1 04/03 Supersedes: Rev. 1, 02/08 		PDF1.71 MB Download
A-14378 External Style PRV IOM
Doc. No. A-14378, Rev. 1.1, 07/16 Supersedes: Rev. 1.0, 02/16 		PDF1.74 MB Download
A-1477/A-14167 External-Style PRV IOM
A-14167-KY & A-14167-3KY, Rev. 1.3 Issue Date: June 2, 2025 Supersedes: A-1477/A-14167, Rev. 1.2 		PDF3.25 MB Download
A-15000 Series External Style IOM
Doc. No. A-1400/A-15000, Rev. 3.1, 07/16 Supersedes: Rev. 3.0, 02/16 		PDF1.87 MB Download
A-1600 Series External Style IOM
Doc. No. A-1400/A-15000, Rev. 3.1, 07/16 Supersedes: Rev. 3.0, 02/16 		PDF1.87 MB Download
A-1700 Series External Style IOM
Doc. No. A-1400/A-15000, Rev. 3.1, 07/16 Supersedes: Rev. 3.0, 02/16 		PDF1.87 MB Download
A-1900 Series External Style IOM
Doc. No. A-1400/A-15000, Rev. 3.1, 07/16 Supersedes: Rev. 3.0, 02/16 		PDF1.87 MB Download
A-19075 Smart-Flow External-Style PRV IOM
A-19075, Rev. 2.3 Issue Date: February 19, 2020 Supersedes: A-19075, Rev. 2.2 		PDF11.04 MB Download

BOTTOM EQUIPMENT

FileTypeSizeDownload
A-520/A-522 4" Bottom Outlet Ball Valve IOM
A-520/A-522/A-522A, Rev. 3.0 Issue Date: April 1, 2021 Supersedes: A-520/522, Rev. 2.2 		PDF2.01 MB Download
A-536/A-567 Bottom Outlet Plug IOM
A-536/A-567, Rev. 1.9 Issue Date: October 10, 2022 Supersedes: Rev. 1.8, 9/18 		PDF4.85 MB Download
A-541 Bottom Outlet Plug Valve IOM
A-541, Rev. 1 Issue Date: January 12, 2018 Supersedes: A-541, Rev. 0 		PDF5.00 MB Download
A-547PL Bottom Outlet Plug Valve IOM
A-547PL, Rev. 1 Issue Date: January 12, 2021 Supersedes: A-547PL, Rev 0 		PDF3.39 MB Download
B-375/B-376 Bottom Outlet Shield IOM
Rev. 1.0, March, 2006 		PDF151.56 KB Download
B-50-MO-VB Bottom Equipment Washout IOM
B-50, Rev. 0 Issue Date: February 20, 2017 Supersedes: N/A 		PDF3.34 MB Download
Bottom Outlet Valve O-Ring Kit Instructions
Rev. 2.1, August, 2016 		PDF180.42 KB Download

VALVE ACTUATOR SYSTEMS

FileTypeSizeDownload
B-3715/B-3715-SW Valve Actuator IOM
February 13, 2006 		PDF490.83 KB Download
B-3715-80M CS Adaptor IOM
March 15, 2005 		PDF268.63 KB Download
B-3724 Remote Valve Actuator Controller IOM
September, 2005 		PDF48.03 KB Download
B-3724M Actuator Manifold IOM
May, 2004 		PDF204.90 KB Download

TOP TRANSFER VALVES

FileTypeSizeDownload
A/720/A-721/A-721-B/A-724/A-725 2” Angle Valve IOM
A-720/A-721/A-721-B/A-724/A-725, Rev. 2.0 Issue Date: Dec 11, 2024 Supersedes: A-720/A-721/A-721-B/A-724, Rev. 1.9 		PDF4.71 MB Download
A-713 1" Angle Valve Repair Kit Instructions
Issue Date: May 5, 2017, Rev. 2.1 Supersedes: November 2000, Rev. 2.0 		PDF419.67 KB Download
A-713/A-715 1" Angle Valve IOM
A-713/A-715, 1.8 Issue Date: August 24, 2023 Supersedes: Rev. 1.7, May 14, 2017 		PDF2.10 MB Download
A-718D 1" Angle Valve IOM
A-718D, Rev 1.1 Issue Date: February 7, 2025 Supersedes: Rev. 1.0, February 2020 		PDF4.31 MB Download
A-720 2" Angle Valve Repair Kit Instructions
A-720 Repair Kit, Rev. 0 Issue Date: June 26, 2018 		PDF686.14 KB Download
A-7200/A-7300 Top Transfer Ball Valve IOM
A-7200/A-7300, Rev. 1.0 Issue Date: April 27, 2020 Supersedes: Rev. 0 		PDF1.40 MB Download
A-728 2" Next Gen Angle Valve IOM
Issue Date: February 2017 Supersedes: February 2011 		PDF332.86 KB Download
A-730 3" Angle Valve Repair Kit Instructions
A-730/A-734 Repair Kit, Rev. 1.1 Issue Date: April 25, 2024 Supersedes: A-7330/A-734 Kits, Rev. 0 		PDF688.92 KB Download
A-730/A-734 3" Angle Valves IOM
A-730/A-734, Rev. 1.2 Issue Date: April 25, 2024 Supersedes: A-730/A-734, Rev. 1.1 		PDF1.93 MB Download

VACUUM RELIEF VALVES

FileTypeSizeDownload
A-205/A-209 Vacuum Relief Valves IOM
A-205/A-209-M, Rev. 1.3, 5/18 Supersedes: Rev. 1.2, 6/05 		PDF1.28 MB Download
A-210/A-212 Vacuum Relief Valve IOM
A-210/A-212, Rev. 2.1 Issue Date: July 5, 2017 Supersedes: A-210/A-212, Rev. 2 		PDF2.54 MB Download
A-220/A-222 Vacuum Relief Valve IOM
A-220/A-222, Rev. 2 Issue Date: April 28, 2017 Supersedes: A-220/A-222, Rev. 1 		PDF1.32 MB Download

GAGING DEVICES

FileTypeSizeDownload
B-612 Magnetic Gaging Device IOM
Part No.: B-612, Rev. 1. Issue Date: Jan 14, 2022. Supersedes: B-612, 20190129 (January 29, 2019) 		PDF3.72 MB Download

NEEDLE VALVES

FileTypeSizeDownload
A-243/A-277 Needle Valve IOM
Rev. 1.1, April, 2004 		PDF95.98 KB Download

RUPTURE DISC DEVICES

FileTypeSizeDownload
A-424/A-460 Rupture Disc Device IOM
A-424/A-460, Rev. 1.3 Issue Date: June 29, 2018 Supersedes: Rev. 1.2, September 2011 		PDF645.20 KB Download
A-430/A-432/A-434 Rupture Disc Device IOM
A-430/A-432/A-434, Rev. 1.1 Issue Date: October 18, 2021 Supersedes: A-430-S/A-432-S/A-434-S, Rev. 1.0 		PDF1.35 MB Download

CHECK VALVES

FileTypeSizeDownload
A-117 Check Valve IOM
Rev 1, July 2025 		PDF176.24 KB Download
A-119 Check Valve IOM
Rev 1, July 2025 		PDF175.20 KB Download
A-120 Check Valve IOM
Rev 1, July 2025 		PDF159.38 KB Download
A-126 Check Valve IOM
Rev 1, July 2025 		PDF137.74 KB Download
A-127 Check Valve IOM
Rev 1, July 2025 		PDF141.00 KB Download
A-128-B Check Valve IOM
Rev 1, July 2025 		PDF181.68 KB Download
A-129 Check Valve IOM
PDF135.22 KB Download
A-130, A-132 Check Valve IOM
Rev 1, July 2025 		PDF161.35 KB Download
A-131, A-133 Check Valve IOM
Rev 1, July 2025 		PDF160.57 KB Download
A-134, A-134-W, A-136, A-136-W Check Valve IOM
Rev 1, July 2025 		PDF246.56 KB Download
A-144, A-146 IOM Check Valve
Rev 1, July 2025 		PDF201.72 KB Download
A-162 Check Valve IOM
Rev 1, July 2025 		PDF152.06 KB Download
A-164, A-167 Check Valve IOM
Rev 1, July 2025 		PDF144.13 KB Download
A-165, A-168 Check Valve IOM
Rev 1, July 2025 		PDF137.45 KB Download
A-174, A-177 Check Valve IOM
Rev 1, July 2025 		PDF141.34 KB Download
A-180 Check Valve IOM
A-180/A-183, Rev. 6.2 Issue Date: January 12, 2018 Supersedes: A-180/A-183, Rev 6.1 		PDF609.28 KB Download
A-183 Check Valve IOM
A-180/A-183, Rev. 6.2 Issue Date: January 12, 2018 Supersedes: A-180/A-183, Rev 6.1 		PDF609.28 KB Download

BREATHER VENT VALVES

FileTypeSizeDownload
A-441 Breather Vent Valve IOM
Rev 1, July 2025 		PDF1.61 MB Download

REGULATORS

FileTypeSizeDownload
A-1800 Series Assembly Testing Procedure
March 15, 2002 		PDF4.19 MB Download

PRESSURE VACUUM VALVES

FileTypeSizeDownload
Pressure Vacuum Valves IOM
PDF615.21 KB Download

LIFT ASSISTERS

FileTypeSizeDownload
B-302/B-303 Lift Assister Assembly Procedure
January 14, 2015 		PDF1.35 MB Download
Lifter Assister Form
PDF179.65 KB Download

EMERGENCY RESPONSE KIT

FileTypeSizeDownload
B-240/B-243 Emergency Response Kit (ERK) Manual
B-240/B-243, Rev. 0 Issue Date: March 27, 2017 		PDF508.87 KB Download

Resources

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