Bottom Outlet Plug Valves
Midland bottom outlet plug valves are the industry standard for general service bottom outlet applications.
Features & Benefits
- Spring-loaded plug ensures the valve remains closed in event of an incident
- Exclusive, low-profile design eliminates the need for AAR required skids - approved for protection level A of AAR circular D.V. 2007
- O-ring seals provide resilient sealing and improve valve performance compared to Teflon seated ball valves
- Triple-seal design on the plug provides exceptional redundant sealing for long valve service life
- A wide variety of O-ring materials are available, including PFA encapsulated O-rings which offer universal compatibility with most commodities, including ethanol and petroleum products
- Clean, cavity-free design prevents entrapment or isolation of media inside the valve body
Models / Drawings
| Name | Size | Profile | Body | Steam Jacket | AAR# | Drawing |
| A-541-XS | 4" | Standard | Carbon Steel | No | E142002 | Download |
| A-541-XS-SJ | 4" | Standard | Carbon Steel | Yes | E142002 | Download |
| A-542-CS | 4" | Standard | Carbon Steel / Stainless Steel | No | E022023 | Download |
| A-542-SS | ||||||
| A-542-MO | ||||||
| A-547-CS | 4" | Standard | Carbon Steel / Stainless Steel | No | ER122015 | Download |
| A-547-SS | ||||||
| A-547-MO | ||||||
| A-547PL-CS | 4" | Standard | Carbon Steel / Stainless Steel | No | ER122015 | Download |
| A-547PL-MO | ||||||
| A-548-CS | 4" | Standard | Carbon Steel / Stainless Steel | No | ER122015 | Download |
| A-548-SS | ||||||
| A-548-MO | ||||||
| A-548-CS-SJ | 4" | Standard | Carbon Steel / Stainless Steel | Yes | ER122015 | Download |
| A-548-XS-SJ | ||||||
| A-548-SS-SJ | ||||||
| A-548-MO-SJ | ||||||
| A-548-CS-SJI | 4" | Standard | Carbon Steel | Yes - Insulated | ER122015 | Download |
| A-548-XS-SJI | ||||||
| A-548-SS-SJI | ||||||
| A-548-MO-SJI | ||||||
| A-549-CS | 4" | Standard | Carbon Steel | No | ER122015 | Download |
| A-549-SS | ||||||
| A-549-MO | ||||||
| A-549-XS | 4" | Standard | Carbon Steel | No | ER122015 | Download |
| A-549-CS-JC | 4" | Low | Carbon Steel / Stainless Steel | No | ER122015 | Download |
| A-549-XS-JC | ||||||
| A-549-SS-JC | ||||||
| A-549-MO-JC | ||||||
| A-549-CS-SJ | 4" | Standard | Carbon Steel / Stainless Steel | Yes | ER122015 | Download |
| A-549-XS-SJ | ||||||
| A-549-SS-SJ | ||||||
| A-549-MO-SJ | ||||||
| A-549-CS-SJI | 4" | Standard | Carbon Steel / Stainless Steel | Yes - Insulated | ER122015 | Download |
| A-549-XS-SJI | ||||||
| A-549-SS-SJI | ||||||
| A-549-MO-SJI | ||||||
| A-565-MO | 6" | Standard | Stainless Steel | No | E172120 | Download |
| A-565-SS |
Skid & Saddle Accessories
MIDLAND BOTTOM OUTLET VALVE APPLICATION
| MODEL NO. | VALVE STYLE | SEAT I.D. | SADDLE MOUNTING | GROOVE | BOLT CIRCLE | HOLE SIZE | NO. OF HOLES | OUTLET | SKID (OPTIONAL) |
| A-536 | PLUG | 3.75 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-537 | PLUG | 3.75 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 3” 150# FLANGE (WITH 4 HOLES 5/8-11 ON 6.00 BC) | B-375, B-376 |
| A-537 | PLUG | 3.75 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 4” 150# FLANGE (WITH 4 HOLES 5/8-11 HOLES ON 7.50 BC) | B-375, B-376 |
| A-538 | PLUG | 3.75 | UMF W/9 5/8 X 1 ½ DEEP SOCKET WITH EDUCTION PIPE | NONE | 8 ½ | 08-May | 8 | 5 ¼-4 THREAD | B-376 |
| A-539 | PLUG | 3.75 | UMF WITH EDUCTION PIPE | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-542 | PLUG | 4.5 | MIDLAND B-365-T | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-543 | PLUG | 4.5 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-545 | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-546 | PLUG | 4.5 | UMF | NONE | 10 5/8 | 08-Jul | 8 | FLANGE WITH 4 HOLES 5/8-11 ON 9.00 B.C. | B-375, B-376 |
| A-546-XS-3” | PLUG | 4.5 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 3” 150# FLANGE | B-375, B-376 |
| A-547 | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | FLANGE W/8 HOLES 7/8 DIA. ON 9 ½ B.C. AND 6” NPT | NOT REQUIRED |
| A-547-JC | PLUG | 4.5 | ACF LOW PROFILE SADDLE # 4-G-9259 | STEP | 10” | 08-May | 8 | FLANGE W/8 HOLES 7/8 DIA. ON 9 ½ B.C. | NOT REQUIRED |
| A-547-SJ-SS | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | FLANGE W/4 HOLES ¾ DIA. ON 9.00 B.C. | NOT REQUIRED |
| A-547-XS-3” | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | 3” 150# FLANGE (WITH 4 5/8-11 HOLES ON 6.00 BC) | NOT REQUIRED |
| A-547PL | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | FLANGE W/8 HOLES 18 mm ON 210 mm B.C. | NOT REQUIRED |
| A-547-SA | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | FLANGE W/8 HOLES 22 mm ON 240 mm B.C. | NOT REQUIRED |
| A-548 | PLUG | 4.5 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-548T | PLUG | 4.5 | UMF W/(6) ¾-10 BOLTS, GROOVED | 8 ½ X 7 ½ TONQUE | 10 | 08-Jul | 6 | 5 ¼-4 THREAD | B-375, B-376 |
| A-548-XS | PLUG | 4.5 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-548-U | PLUG | 4.5 | UMF W/MACHINED 12.50 O.D. X .50 DEEP | NONE | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | NONE USED |
| A-548-PQ-SJI | PLUG | 4.5 | UMF | NONE | 10 5/8 | 08-Jul | 8 | 4” QUICK CONNECT | B-375, B-376 |
| A-549 | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-549 | PLUG | 4.5 | ACF 4-U-3731 | NONE | 8 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-549-DK | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-549-JC | PLUG | 4.5 | ACF LOW PROFILE SADDLE # 4-G-9259 | STEP | 10 | 08-May | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-549-KB | PLUG | 4.5 | ACF 5-J-0514 SADDLE AND UTC 21270 SADDLE | NONE | 13.75 | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-560 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | FLANGE W/8 HOLES 7/8 DIA. ON 9.50 B.C. AND 6” NPT | NOT REQUIRED |
| A-562 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | FLANGE W/8 ¾-10 BOLTS ON 9.50 B.C. AND 6” NPT | NOT REQUIRED |
| A-563 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | 4” CHERRY BURREL MALE “I” CLAMP | NOT REQUIRED |
| A-564 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | 6” CHERRY BURREL MALE “I” CLAMP | NOT REQUIRED |
| A-565 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | FLANGE W/4 ¾-10 BOLTS ON 9.50 B.C. | NOT REQUIRED |
| A-566 | PLUG | 6 | ACF LOW PROFILE SADDLE # 4-G-9259 | STEP | 10 | 08-May | 8 | FLANGE W/4 ¾-10 BOLTS ON 9.50 B.C. | NOT REQUIRED |
| A-567 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | 6” QUICK CONNECT | NOT REQUIRED |
| A-568 | PLUG | 6 | UMF W/7.50 I.D. | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | FLANGE W/4 HOLES ¾ DIA. ON 9.00 B.C. | |
| A-569 | PLUG | 6 | MIDLAND B-364 FINNED | NONE | 14 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-580 | PLUG, TOP OPERATED | 8 | MIDLAND B-368R | NONE | 322 mm | M20 | 6 | CLAMPED HOSE | NOT REQUIRED |
Sales Literature
-
A-541 Bottom Outlet Plug Valve Sell Sheet
-
Crude Oil Railcar Brochure 2019
-
BOV Interchange Table Data Sheet
IOMs
-
A-541 Bottom Outlet Plug Valve IOM
-
A-547PL Bottom Outlet Plug Valve IOM
-
A-536/A-567 Bottom Outlet Plug IOM
Features & Benefits
- Spring-loaded plug ensures the valve remains closed in event of an incident
- Exclusive, low-profile design eliminates the need for AAR required skids - approved for protection level A of AAR circular D.V. 2007
- O-ring seals provide resilient sealing and improve valve performance compared to Teflon seated ball valves
- Triple-seal design on the plug provides exceptional redundant sealing for long valve service life
- A wide variety of O-ring materials are available, including PFA encapsulated O-rings which offer universal compatibility with most commodities, including ethanol and petroleum products
- Clean, cavity-free design prevents entrapment or isolation of media inside the valve body
Models / Drawings
| Name | Size | Profile | Body | Steam Jacket | AAR# | Drawing |
| A-541-XS | 4" | Standard | Carbon Steel | No | E142002 | Download |
| A-541-XS-SJ | 4" | Standard | Carbon Steel | Yes | E142002 | Download |
| A-542-CS | 4" | Standard | Carbon Steel / Stainless Steel | No | E022023 | Download |
| A-542-SS | ||||||
| A-542-MO | ||||||
| A-547-CS | 4" | Standard | Carbon Steel / Stainless Steel | No | ER122015 | Download |
| A-547-SS | ||||||
| A-547-MO | ||||||
| A-547PL-CS | 4" | Standard | Carbon Steel / Stainless Steel | No | ER122015 | Download |
| A-547PL-MO | ||||||
| A-548-CS | 4" | Standard | Carbon Steel / Stainless Steel | No | ER122015 | Download |
| A-548-SS | ||||||
| A-548-MO | ||||||
| A-548-CS-SJ | 4" | Standard | Carbon Steel / Stainless Steel | Yes | ER122015 | Download |
| A-548-XS-SJ | ||||||
| A-548-SS-SJ | ||||||
| A-548-MO-SJ | ||||||
| A-548-CS-SJI | 4" | Standard | Carbon Steel | Yes - Insulated | ER122015 | Download |
| A-548-XS-SJI | ||||||
| A-548-SS-SJI | ||||||
| A-548-MO-SJI | ||||||
| A-549-CS | 4" | Standard | Carbon Steel | No | ER122015 | Download |
| A-549-SS | ||||||
| A-549-MO | ||||||
| A-549-XS | 4" | Standard | Carbon Steel | No | ER122015 | Download |
| A-549-CS-JC | 4" | Low | Carbon Steel / Stainless Steel | No | ER122015 | Download |
| A-549-XS-JC | ||||||
| A-549-SS-JC | ||||||
| A-549-MO-JC | ||||||
| A-549-CS-SJ | 4" | Standard | Carbon Steel / Stainless Steel | Yes | ER122015 | Download |
| A-549-XS-SJ | ||||||
| A-549-SS-SJ | ||||||
| A-549-MO-SJ | ||||||
| A-549-CS-SJI | 4" | Standard | Carbon Steel / Stainless Steel | Yes - Insulated | ER122015 | Download |
| A-549-XS-SJI | ||||||
| A-549-SS-SJI | ||||||
| A-549-MO-SJI | ||||||
| A-565-MO | 6" | Standard | Stainless Steel | No | E172120 | Download |
| A-565-SS |
Skid & Saddle Accessories
MIDLAND BOTTOM OUTLET VALVE APPLICATION
| MODEL NO. | VALVE STYLE | SEAT I.D. | SADDLE MOUNTING | GROOVE | BOLT CIRCLE | HOLE SIZE | NO. OF HOLES | OUTLET | SKID (OPTIONAL) |
| A-536 | PLUG | 3.75 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-537 | PLUG | 3.75 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 3” 150# FLANGE (WITH 4 HOLES 5/8-11 ON 6.00 BC) | B-375, B-376 |
| A-537 | PLUG | 3.75 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 4” 150# FLANGE (WITH 4 HOLES 5/8-11 HOLES ON 7.50 BC) | B-375, B-376 |
| A-538 | PLUG | 3.75 | UMF W/9 5/8 X 1 ½ DEEP SOCKET WITH EDUCTION PIPE | NONE | 8 ½ | 08-May | 8 | 5 ¼-4 THREAD | B-376 |
| A-539 | PLUG | 3.75 | UMF WITH EDUCTION PIPE | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-542 | PLUG | 4.5 | MIDLAND B-365-T | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-543 | PLUG | 4.5 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-545 | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-546 | PLUG | 4.5 | UMF | NONE | 10 5/8 | 08-Jul | 8 | FLANGE WITH 4 HOLES 5/8-11 ON 9.00 B.C. | B-375, B-376 |
| A-546-XS-3” | PLUG | 4.5 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 3” 150# FLANGE | B-375, B-376 |
| A-547 | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | FLANGE W/8 HOLES 7/8 DIA. ON 9 ½ B.C. AND 6” NPT | NOT REQUIRED |
| A-547-JC | PLUG | 4.5 | ACF LOW PROFILE SADDLE # 4-G-9259 | STEP | 10” | 08-May | 8 | FLANGE W/8 HOLES 7/8 DIA. ON 9 ½ B.C. | NOT REQUIRED |
| A-547-SJ-SS | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | FLANGE W/4 HOLES ¾ DIA. ON 9.00 B.C. | NOT REQUIRED |
| A-547-XS-3” | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | 3” 150# FLANGE (WITH 4 5/8-11 HOLES ON 6.00 BC) | NOT REQUIRED |
| A-547PL | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | FLANGE W/8 HOLES 18 mm ON 210 mm B.C. | NOT REQUIRED |
| A-547-SA | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | FLANGE W/8 HOLES 22 mm ON 240 mm B.C. | NOT REQUIRED |
| A-548 | PLUG | 4.5 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-548T | PLUG | 4.5 | UMF W/(6) ¾-10 BOLTS, GROOVED | 8 ½ X 7 ½ TONQUE | 10 | 08-Jul | 6 | 5 ¼-4 THREAD | B-375, B-376 |
| A-548-XS | PLUG | 4.5 | UMF | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | B-375, B-376 |
| A-548-U | PLUG | 4.5 | UMF W/MACHINED 12.50 O.D. X .50 DEEP | NONE | 10 5/8 | 08-Jul | 8 | 5 ¼-4 THREAD | NONE USED |
| A-548-PQ-SJI | PLUG | 4.5 | UMF | NONE | 10 5/8 | 08-Jul | 8 | 4” QUICK CONNECT | B-375, B-376 |
| A-549 | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-549 | PLUG | 4.5 | ACF 4-U-3731 | NONE | 8 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-549-DK | PLUG | 4.5 | MIDLAND B-363 | NONE | 8 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-549-JC | PLUG | 4.5 | ACF LOW PROFILE SADDLE # 4-G-9259 | STEP | 10 | 08-May | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-549-KB | PLUG | 4.5 | ACF 5-J-0514 SADDLE AND UTC 21270 SADDLE | NONE | 13.75 | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-560 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | FLANGE W/8 HOLES 7/8 DIA. ON 9.50 B.C. AND 6” NPT | NOT REQUIRED |
| A-562 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | FLANGE W/8 ¾-10 BOLTS ON 9.50 B.C. AND 6” NPT | NOT REQUIRED |
| A-563 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | 4” CHERRY BURREL MALE “I” CLAMP | NOT REQUIRED |
| A-564 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | 6” CHERRY BURREL MALE “I” CLAMP | NOT REQUIRED |
| A-565 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | FLANGE W/4 ¾-10 BOLTS ON 9.50 B.C. | NOT REQUIRED |
| A-566 | PLUG | 6 | ACF LOW PROFILE SADDLE # 4-G-9259 | STEP | 10 | 08-May | 8 | FLANGE W/4 ¾-10 BOLTS ON 9.50 B.C. | NOT REQUIRED |
| A-567 | PLUG | 6 | MIDLAND B-366 | NONE | 10.25 | 08-Jul | 8 | 6” QUICK CONNECT | NOT REQUIRED |
| A-568 | PLUG | 6 | UMF W/7.50 I.D. | 8 ½ X 7 ½ | 10 5/8 | 08-Jul | 8 | FLANGE W/4 HOLES ¾ DIA. ON 9.00 B.C. | |
| A-569 | PLUG | 6 | MIDLAND B-364 FINNED | NONE | 14 ½ | 08-Jul | 8 | 5 ¼-4 THREAD | NOT REQUIRED |
| A-580 | PLUG, TOP OPERATED | 8 | MIDLAND B-368R | NONE | 322 mm | M20 | 6 | CLAMPED HOSE | NOT REQUIRED |
Sales Literature
-
A-541 Bottom Outlet Plug Valve Sell Sheet
-
Crude Oil Railcar Brochure 2019
-
BOV Interchange Table Data Sheet
IOMs
-
A-541 Bottom Outlet Plug Valve IOM
-
A-547PL Bottom Outlet Plug Valve IOM
-
A-536/A-567 Bottom Outlet Plug IOM
Need help? Contact support.
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Technical Support
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