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Ethylene Oxide Valve Shutoff (EtO)
About Ethylene Oxide
Ethylene Oxide is a colorless, flammable gas at standard temperature and pressure.
Exposure to EtO can cause blurred vision and eye pain, difficulty breathing, dizziness,
nausea, headache, convulsions, blisters and vomiting. It is a known carcinogen and
has also been linked to spontaneous abortion, genetic damage, nerve damage, peripheral
paralysis, muscle weakness, and impaired mental ability.
It is used in the production of solvents, antifreeze, textiles, detergents, adhesives,
pharmaceuticals and polyurethane foam. Ethylene Oxide is shipped in pressurized
tank cars using angle plug or angle ball valves.
Synonyms: Dihydrocodeine, Dimethylene Oxide, EO, ETO, 1,2-Epoxyethane, Epoxyethane,
Ethene Oxide, Oxacyclopropane, Oxane, Oxirane.
Accidental Release of Ethylene Oxide
In the event of an accidental release of Ethylene Oxide, avoid heat, flames, sparks
and other sources of ignition. If possible without risk, stop the flow of gas to
the leak.
Powell Emergency Valve Closure Systems are designed to prevent significant releases
of ethylene oxide. In the case of an accidental release, the emergency shutdown
system will immediately close the ethylene oxide container valve (EtO Valve), stopping
the flow of the gas regardless of where the EtO leak occurs downstream of the container.
To prevent ignition source sparks from being generated by contact between UniPro™
Valve Closure actuators and ethylene oxide platform or container components, spark
resistant materials are used in the sensitive areas of the UniPro™ actuators.
Valve handle adapters utilize brass and aluminum. Clamps used to fasten the actuators
and hose manifolds to steel dome walls are fabricated from aluminum. Where UniPro™
actuators must operate in close proximity to the actual valve outlets, as with the
UniPro™ QT actuator for quarter turn ball valves, bronze is used where metal
to metal wear contact is present and aluminum is used for the actual body of the
actuator. No structurally strong metal is truly spark-proof. However, by utilizing
these spark resistant materials, the UniPro™ family of actuators and accessories
provide a minimum risk environment when working around explosive fluids. All UniPro™
valve actuators are powered by pneumatic motors utilizing composite air motor vanes.
These produce neither sparks or heat and can be energized with inert nitrogen to
further reduce the danger of ignition.
It is possible to prevent an accidental release of Ethylene Oxide.
Contact us today to discuss your specific application requirements.
Back to List of Hazardous Gases
Shutdown Systems for Various Container Sizes
Powell is the only manufacturer to offer both pneumatic or electric systems for
150 lb Ethylene Oxide Cylinders, Ton Containers, Railcars, Tank Cars, and Bullet
Tanks.
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