Corken B166B.75 3/4" Bypass Valve for LP Gas & Propane Pump Systems – 25 to 225 PSIThe Corken B166B.75 is a precision-machined 3/4" bypass valve designed for use with LP gas, propane, and butane pump systems—especially Coro-Flo regenerative turbine pumps and other small cylinder filling equipment. This valve combines bypass functionality with a vapor elimination system, increasing pump seal life, reliability, and efficiency in liquid transfer systems.Ideal for bulk plant loading/unloading operations and small cylinder filling stations, this bypass valve features a working differential pressure range of 25–225 PSI. It is engineered for smooth performance and minimal pressure buildup, reducing system stress and maintaining safe operating parameters.Key Features:3/4" NPT female portsSupports 25 to 225 PSI pressure differentialBuilt-in vapor eliminator to protect pump sealsFor use with Coro-Flo and cylinder filling pumpsDurable, long-lasting materials for high-cycle installationsRequires sensing line from the storage tank for proper functionApplications:DOT cylinder fillingLP gas transferBulk plant unloadingVapor elimination on side channel or regenerative turbine pumpsImportant Notice ? Propane Parts, Accessories, and Regulators:This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.Seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.By purchasing this item, the buyer acknowledges they have read, understood, and agreed to these terms, and confirm that installation and use will be conducted by a properly licensed and qualified professional.