TERR – Double Block & Bleed Valves

Double Block & Bleed Valves

Process & Steam Specialties strives to provide innovative and competitively priced solutions from premium manufacturers for a wide variety of industries including but not limited to; power, oil and gas, chemical, pharmaceutical, pulp and paper, food and beverage. To learn more about the double block and bleed valves available in the Canadian Territories, view the information below, with the option to download further product information.

Oliver Valves

Oliver Valves double block and bleed valves has delivered complete operational safety to the oil, gas and petrochemical industries. With over 30-years of innovation, Oliver Valves has engineered solutions that are used all over the world.

Oliver Twinsafe

Oliver Twinsafe manufacturers a range of double block and bleed large-bore pipeline ball valves that will save you space and weight, reduce potential leak paths and minimize maintenance requirements on both new and existing pipelines.


PBM’s double block and bleed valves provide true double positive isolation. This provides the best technology for the most severe isolation services where it is required. Designed to ASME B16.34 and ideal where safety and reliability are critical.