Loading Systems Catalog

Loading Systems Catalog


Dry & Quick Disconnect

Dry & Quick Disconnect Fittings Catalog


Swivel Joints

Swivel Joints Catalog


Process Products & Accessories Catalog

Process Products and Accessories Catalog



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. Their system designs meet a wide range of needs from the modest demands of drum-filling applications to the high-volume loading and unloading requirements of major chemical and petroleum facilities. With OPW’s innovation, and Berg Nelson’s 66 years of fluid loading & unloading hands-on field experience, you can trust in us to meet your every demand.


Here is a list of OPW products available through Berg Nelson:


  • Kamvalok Dry-Break Couplers
  • DryLok Dry-Break Couplers
  • Single & Multi-Plane Swivel Joints
  • Top & Bottom Loading Arms
  • Multi-Swivel Loading Arms
  • API Loading Couplers
  • Safety Break-Away Systems
  • Electronic Rack Equipment
  • Floating Suction Assemblies


One product in particular where we have seen tremendous growth is with the dry disconnect systems (Kamvalok & DryLok). In todays world, protecting the environment should be on everyones mind. Dry disconnect systems contribute greatly to both protecting the environment and your bottom line. These products dramatically reduce spillage when disconnecting fluid connections, basically eliminating hazardous and/or expensive fluids from contaminating your facility and costing you money. OPW Engineered Systems offers the most comprehensive line of dry disconnect products in the industry. Dry disconnect couplings have been proven as a successful technology to help protect workers and the environment in the transfer of hazardous materials. 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.


Industries currently using OPW dry disconnect systems:


  • Petroleum
  • Gas
  • Chemical Processing & Mixing
  • Power Generation
  • Food & Beverage
  • Pharmaceutical
  • Marine
  • Pulp & Paper
  • Water & Waste Water



OPW Engineered Systems is the brand you can trust for reliability, safety, service, and support. Through Berg Nelson, you have access to the most trusted name in fluid retainment & transfer.


Give Berg Nelson a call and get connected, or disconnected with your #1 industrial resource.