FlowBiz Double Block Bleed Plug Valves are designed following essential international standards. They also meet the requirements of significant hydrocarbon industry standards and customer specifications. FlowBiz expanding plug valves are ideal for applications requiring positive shut off verifiable zero leakage double block and bleed DB and B or double isolation and bleed DIB capability. Range : Size : 2 inch to 30 inch (50mm to 750mm) - 150 Class Size : 2 inch to 24 inch (50mm to 600mm) - 300 Class Size : 2 inch to 12 inch (50mm to 300mm) - 600 Class Applications : Blending Units : Blending Units The FlowBiz Double Block and Bleed Valves are designed for the perfect blending of ethanol. Other geographical fuel grades need valves with exceptionally high seal probity to guarantee precise measurement of additives and blending stocks Product Isolation The FlowBiz Double Block & Bleed Valves are designed for reliable isolation of biofuels or other process-sensitive fluids critical for environmental and process safety. The FlowBiz DB and B provable zero leakage and positive shut off abilities make it an ideal solution for process sensitive applications and isolation. Multi-Product Manifolds The FlowBiz Double Block & Bleed Valves are designed for refinery, pipeline, and transfer manifolds to flow multiple products (e.g. blending stocks, diesel, gasoline, jet fuel etc. reliably and without contamination. FlowBiz DB and B is a valuable tool for preventing cross-contamination of products. Prover Loops For every valve in the prover loop system to have a zero leak rate, flow meters must have proper calibration any error in calibration results in a leak. FlowBiz DB and B valves are used to ensure accurate calibration & leak tight closure. Custody Transfer Units Accurate measurement of product transfer quantity depends on the transfer of valuable media. The FlowBiz DB and B provides zero leak rate and positive shut off, guaranteeing the accuracy of the transfer quantity calculation. Offshore Platform Any leakage on an offshore platform results in facilities and environment loss. The FlowBiz DB and B has excellent low pressure positive shutoff characteristics and is perfect for offshore platforms. Terminals Terminals used for unloading and loading tankers require valves with positive sealing to prevent environmental damage due to spillage. The FlowBiz DB and B provides zero leak rate and positive sealing in a secure and one go valve solution. Tank Farms (Oil Depots) Frequently operated Tank isolation valves have high reliability and require zero leak rate. The FlowBiz DB and B valve provides a high integrity seal designed and reliable for an instant, long term and frequent use. Aviation Fueling Systems Airport fueling systems require valves that close instantly and have provable seal integrity, allowing for quick maintenance, repair, leak location and testing the FlowBiz DB and B valve sustainable zero leak rate.