The Goodyear Engineered Products Gemini Twin Line R welding hose assembly is manufactured for welding service and meets the Rubber Manufacturers Association (RMA) IP-7 standard for Grade R welding hose (acetylene welding only). Its tubes and green and red covers are constructed of Versigard (EPDM, ethylene propylene diene monomer) for compatibility with oxygen and acetylene gases and resistance to aging, chemicals, ozone, and heat. This hose assembly has a spiral synthetic yarn reinforcement that provides the strength necessary to reach and maintain its maximum pressure rating of 200 psi. It is capable of functioning effectively at temperatures ranging from -40 to +120 degrees F (-40 to +49 degrees C), and comes equipped with two factory-installed size 18B brass female swivel couplings. This hose assembly is suitable for industrial and manufacturing applications that call for acetylene welding and cutting.Industrial hoses transfer or convey air or liquid in hose systems. When selecting industrial hoses, use the STAMPED method to help determine the type of hose needed:S = Size (ID, OD, and length)T = Temperature (maximum and minimum temperatures of material being transported)A = Application (industry or process)M = Material (to be conveyed, type and concentration)P = Pressure (maximum working pressure)E = Ends (type of end connectors or couplings on hose)D = Delivery method (volume and velocity)The inside diameter of the hose must be adequate to keep pressure loss to a minimum and avoid damage to the hose due to heat generation or excessive turbulence. The hose must be capable of withstanding the minimum and maximum temperatures that occur within the hose system. Some applications require specialized oils or chemicals to be conveyed through the system. In this case, hose selection must ensure compatibility of the hose tube, cover, couplings and O-rings with the fluid used. Industrial hoses are used in systems such as air compressors, automatic manufacturing operations, aircraft controls, and tire installation in industries including agriculture, mining, road construction, firefighting, and aviation. Veyance Technologies manufactures and sells Goodyear Engineered Products, including hoses, industrial power transmission products, conveyor belts, hydraulics, rubber track, and automotive and truck products. It is headquartered in Fairlawn, OH.
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