OPW Engineered Systems

Throughout the world, OPW Engineered Systems has been a global leader in developing loading and coupling systems for the safe and efficient loading and unloading of all types of critical hazardous fluids.

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Civacon specializes in products for petroleum, chemical and dry bulk cargo tanks that help safeguard against spills, overfills, and fugitive emissions: access ports, manholes, weld rings, hatches, fill covers, swing check valves, pressure vacuum hatches.

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You can rely on Midland’s 60 plus years of experience to help ensure the safe and reliable performance of your rail tank car valves and fittings.

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Sure Seal

Sure Seal specializes in components for pneumatic tank trailers, rail cars, chemical and pharmaceutical plants, and any application requiring the processing, movement and storage of dry bulk or liquid materials


Serving the world with innovative high and low pressure and temperature sealing couplings, connectors, and product recovery / pipeline cleaning technologies for over a decade

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OPW's Drylok™ dry disconnect coupler is designed to safely transfer hazardous corrosive, volatile liquids such as acids, solvents and petrochemicals.

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Because of its unique poppet action the OPW Kamvalok® Dry Disconnect virtually eliminates spillage of any residual liquid contained within the line after disconnection.

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OPW Kamlok® Quick Disconnects are the industry-standard in cam and groove couplers for safety and ease of use.

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OPW Autolok® Quick Couplers are self-locking couplers that provide an added level of safety and convenience at the fluid connection.

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OPW's EPSILON™ coupling system was designed to prevent chemical spills and reduce fugitive emissions of volatile organic compounds (VOC’s).

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