Midland Proudly Provides the Most Complete Package of Railcar Fittings for the Latest DOT 117 and TC 117 Requirements

Beyond meeting regulations, through continuous voice-of-customer research, Midland creates the most innovative and safest products to match the desires of its customers. From external to internal devices to a variety of flow rates, Midland is willing and ready to go the extra mile. This customer-centric approach will help you navigate through the challenges of the latest regulations for high-hazard flammable trains (HHFTs) and high-hazard flammable unit trains (HHFUTs) and to make sure your railcars and profits keep rolling.

Tank Car DOT-117 Retrofit Source Guide

Solutions for DOT 117 / 117R Railcars

Ball Valve

Ball Valve

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A-212 Enhanced Vacuum Relief Valves

A-212 Enhanced Vacuum Relief Valves

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Midland Can Help You Specify the Right Valves for Your Railcar Fleet

Tank Car DOT-117 Retrofit Source Guide

In order to find the right solutions for your railcar, choose your Retrofit Source below. If you have any questions, feel free to contact us.

Source Type

Source Implementation
Date
Pressure
Relief Valve
Bottom Outlet VRV
New Car October 1, 2015 Smart-Flow (Best)
High-FlowX
* A-522 with Enhanced Handle Flange Mount A-212
DOT-111 / Non Jacketed April 30, 2017 Smart-Flow (Best) * Enhanced Handle Only
* A-522 with Enhanced Handle (Best)
Flange Mount A-212
DOT-111 / Jacketed February 28, 2018 Smart-Flow (Best) * Enhanced Handle Only
* A-522 with Enhanced Handle (Best)
Flange Mount A-212
Flanged Mount A-212- FR20 with Premium Screen (Best)
CPC-1232 / Non Jacketed March 31, 2020 Smart-Flow (Best)
High-Flow
High-FlowX
* Enhanced Handle (Best) – Retrofits Midland and Competitive Alternatives Flanged Mount A-212-FR20 with Premium Screen (Best)
CPC-1232 / Jacketed April 30, 2025 Smart-Flow (Best)
High-Flow
High-FlowX
* Enhanced Handle (Best) – Retrofits Midland and Competitive Alternatives Flanged Mount A-212-FR20 with Premium Screen (Best)

*Midland recommendation. Not part of DOT-117 regulations.