Midland's New Low-Profile Pressure Relief Valve Provides Extra Protection In The Event Of A Rollover

By OPW | Apr 15, 2015

SKOKIE, ILLINOIS – April 15, 2015 – Midland Manufacturing, part of OPW, has launched a new pressure relief valve (PRV), A-1076, to help reduce the likelihood of valve shear-off during a rail tank-car rollover. Built specifically for the rail transport of ethylene oxide – a toxic inhalation hazard – Midland's innovative A-1076 is the result of customer feedback and industry demand for a product that can survive a tank-car rollover.

With the unique and dangerous handling characteristics of ethylene oxide (EO) in mind, the design of the Midland's A-1076 PRV is a direct replacement for the A-14286 External PRV.  The new top guide design retains traditional dual stem guide points, while reducing the PRV's profile to less than 3". When combined with the Federal Railroad Association (FRA)-approved top-fitting protection system and the proper angle/check valves, the A-1076 PRV provides maximum protection against valve shear-off and can help avoid dangerous accidental, and non-accidental releases of EO.

"When rail tank-cars derail, there is a risk of valves shearing off and the subsequent release of highly toxic substances," said Steve Herbst, Product Manager at Midland. "The industry wants and needs a solution. The new Midland Low-Profile PRV, combined with a protective valve housing, is that solution."

Additionally, the A-1076 PRV has a guided stem at the top and bottom, enabling the device to achieve repeatable set-to-discharge, positive sealing and vapor-tight performance. The 75 psig set-to-discharge and flow rating of 965 scfm-air will quickly and consistently relieve pressure as needed.

For the ultimate protection of EO shipments pre-, during and post-derailment, select the complete Ethylene Oxide Enhanced Fittings Package from Midland. 

For more on Midland Manufacturing and its products, please go to www.midlandmfg.com.

About Midland Manufacturing:
Midland Manufacturing is part of OPW, a global leader in fully integrated fluid handling, management, monitoring and control solutions for the safe and efficient handling of critical petroleum-derived fluids from the refinery to the commercial and retail points of consumption, including loading systems, rail and transport tank truck equipment, tank gauging equipment and automated fuel management systems, valves and fittings, underground and above ground storage tank equipment, spill containers, overfill prevention devices, secondary containment sumps and flexible piping, fuel dispensing products, including swivels, breakaways, industrial and automatic dispensing nozzles for vapor recovery, gasoline, diesel, and alternative fuels, and clean energy fueling nozzles and accessories for LPG, Hydrogen and CNG. OPW also manufactures automated vehicle wash systems. OPW has 1,650+ employees with manufacturing operations in North America, Europe, Brazil, China and India and sales offices around the world. OPW is an operating company within the Fluids segment of Dover Corporation (NYSE: DOV). For more information on OPW, please visit www.opwglobal.com.