Part #: TMC20626

20-Inch 6 Bolt Stainless Steel Manway Cover with 2-1/2 Inch Coupling, Trinity Arrangement

Salco Products (TMC20626) 20-Inch 6 Bolt Stainless Steel Manway Cover with 2-1/2-inch Coupling and Mill Finish features a 1/2-inch thick, 316L stainless steel, manway dome and manway ring welded together. The manway has six (6) 1-1/64-inch eye bolt slots on a 23-7/8-inch bolt circle with an AAR #1 style gasket groove. Also includes two (2) 304 stainless steel manway hinges, and a 304 stainless steel manway safety stop. The 316 stainless steel, 2-1/2-inch NPT, half coupling is 1.81-inches tall. Fits Trinity OEM nozzle arrangement. AAR Approval # E-182114.

Key features

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Salco's manway covers are available in both 6 and 8 bolt patterns and can be installed on most major manufacturers' tank cars.

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ASTM A-36 Steel and 316L Stainless options with mill, satin or polished finish.

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Fully customizable; can add threaded ports and safety vent bosses.

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AAR Style #1 Gasket Groove.

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Paintable; match your cars color.

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Meets chemical/food grade service standards.

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Works with the Salco Lift Assist device.

Specifications

Air Inlet Nipple
No
Finish
Mill
Material
Stainless Steel
No of Bolts
6
OEM Arrangement
Trinity
Pipe Coupling
2.5
Quick Inspect Boss
No

Resources

Product Card • December 17, 2025

20 Inch Manway Cover

e-Catalog • February 12, 2026

General Purpose Tank Car Catalog

See also

Manway Nozzle Gaskets Manway Nozzle Gaskets
Manway Nozzle Gaskets

Manway nozzle gaskets create a secure seal between the manway cover and nozzle on general...

Manway Lift Assist Manway Lift Assist
Manway Lift Assist

Manway lift assist systems reduce the physical effort required to open and close heavy tank...

Eyebolts Eyebolts
Eyebolts

Eyebolts are essential fastening components used to secure tank car manway covers and related assemblies....