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OPW Engineered Systems

OPW has been leading the way since 1892 by offering premium-grade top and bottom loading arms, swivel joints, sight flow indicators, quick and dry disconnect couplers and safety breakaways for use in railcar rack systems and platforms, bulk plant and liquid terminals applications

OPW offers products and systems used for the safe and efficient loading, transfer, handling and unloading of critical fluids, such as crude oil, shale oil, refined fuels, LPG, LNG, biodiesel, butadiene, corn syrup and a wide array of hazardous chemicals.

Visit OPW’s Website

Loading Arms & Systems

Loading Arms & Systems

OPW offers the most complete line of loading arms and loading-rack equipment for today’s bulk loading and unloading requirements. Whether the application involves tank trucks, railcars, drums or totes, and the moving of petroleum products, liquefied gases, asphalt, solvents or hazardous/corrosive chemicals, OPW Engineered Systems is the preferred loading arm choice worldwide.

Swivel Joints

Swivel Joints

OPW manufactures swivel joints for a broad range of uses in the chemical, petroleum, petrochemical, refining, mining, distilling, brewing, ink and paint industries, as well as farm irrigation and fertilizing. Design, plant and maintenance engineers use OPW swivel joints in flexible piping systems, loading arms, hose reels, sewer rodding and wastewater treatment equipment, and various types of process machinery. They also use our swivel joints in machine tool coolant transfer, drum filling applications, and in a variety of in-plant fluid and dry bulk transfer applications.

Versatility is the key to OPW swivel joints. They make it possible for you to use rigid metal piping for loading and unloading fluids and dry product under pressure or vacuum without the difficulty or danger of handling heavy, cumbersome hoses.

Quick Disconnect Fittings

Quick Disconnect Fittings

OPW Engineered Systems offers a comprehensive line of quick disconnect products in a wide variety of sizes and configurations. Kamlok® is the world’s most popular cam and groove. The name is synonymous with quick disconnects and has set the industry standard for safety and ease of use. Autolok® quick disconnects utilize a self-locking system to provide an added level of safety.

Both Kamlok® and Autolok® offer the exclusive Twin-Kam™ feature, a patented system that holds the adaptor more securely for increased protection against accidental release. These popular couplers and adapters are the industry’s safest, sturdiest and quickest coupler systems on the market.

Dry Disconnects

Dry Disconnects

OPW Engineered Systems offers the most comprehensive line of dry disconnect products in the industry. Our line of dry disconnects include Drylok™, Kamvalok®and Epsilon®, all suitable for a broad range of hazardous liquid applications. Dry disconnect couplings have been proven as a successful technology to help protect workers and the environment in the transfer of hazardous materials. Our dry disconnect couplers ensure against accidental spillage of liquids. If your product is corrosive, toxic, caustic or otherwise harmful, OPW Engineered System’s family of high-performance dry disconnect couplings help reduce the hazards associated with the transfer of these products.

Loading Arms & Systems

Loading Arms & Systems

OPW offers the most complete line of loading arms and loading-rack equipment for today’s bulk loading and unloading requirements. Whether the application involves tank trucks, railcars, drums or totes, and the moving of petroleum products, liquefied gases, asphalt, solvents or hazardous/corrosive chemicals, OPW Engineered Systems is the preferred loading arm choice worldwide.


Request a Quote
Download Catalog

Swivel Joints

Swivel Joints

OPW manufactures swivel joints for a broad range of uses in the chemical, petroleum, petrochemical, refining, mining, distilling, brewing, ink and paint industries, as well as farm irrigation and fertilizing. Design, plant and maintenance engineers use OPW swivel joints in flexible piping systems, loading arms, hose reels, sewer rodding and wastewater treatment equipment, and various types of process machinery. They also use our swivel joints in machine tool coolant transfer, drum filling applications, and in a variety of in-plant fluid and dry bulk transfer applications.

Versatility is the key to OPW swivel joints. They make it possible for you to use rigid metal piping for loading and unloading fluids and dry product under pressure or vacuum without the difficulty or danger of handling heavy, cumbersome hoses.


Request a Quote
Download Catalog

Quick Disconnect Fittings

Quick Disconnect Fittings

OPW Engineered Systems offers a comprehensive line of quick disconnect products in a wide variety of sizes and configurations. Kamlok® is the world’s most popular cam and groove. The name is synonymous with quick disconnects and has set the industry standard for safety and ease of use. Autolok® quick disconnects utilize a self-locking system to provide an added level of safety.

Both Kamlok® and Autolok® offer the exclusive Twin-Kam™ feature, a patented system that holds the adaptor more securely for increased protection against accidental release. These popular couplers and adapters are the industry’s safest, sturdiest and quickest coupler systems on the market.


Request a Quote
Download Catalog

Dry Disconnects

Dry Disconnects

OPW Engineered Systems offers the most comprehensive line of dry disconnect products in the industry. Our line of dry disconnects include Drylok™, Kamvalok®and Epsilon®, all suitable for a broad range of hazardous liquid applications. Dry disconnect couplings have been proven as a successful technology to help protect workers and the environment in the transfer of hazardous materials. Our dry disconnect couplers ensure against accidental spillage of liquids. If your product is corrosive, toxic, caustic or otherwise harmful, OPW Engineered System’s family of high-performance dry disconnect couplings help reduce the hazards associated with the transfer of these products.


Request a Quote
Download Catalog

OPW has been leading the way since 1892 by offering premium-grade top and bottom loading arms, swivel joints, sight flow indicators, quick and dry disconnect couplers and safety breakaways for use in railcar rack systems and platforms, bulk plant and liquid terminals applications

OPW offers products and systems used for the safe and efficient loading, transfer, handling and unloading of critical fluids, such as crude oil, shale oil, refined fuels, LPG, LNG, biodiesel, butadiene, corn syrup and a wide array of hazardous chemicals.

Visit OPW’s Website