Dixon Valve, 820FGXFGCS00200, Swivel Joint Style 20 150# ASA Flange x 150# ASA Flange, Carbon Steel, 8"Features:Spring loaded triple V-ring sealing system ensures a leakproof seal at either high or low pressure and extends seal lifeFull 360° rotational movementWide spacing between dual ball bearing raceways ensures greater load bearing capacityPrecision-machined design ensures alignment and years of trouble-free serviceHydrostatic testing is performed on all swivels before shipmentO-ring dust seal protects the ball races and seals chamber from outside elementsSwivels that include oxygen, steam or submerged service can be specifically designed for unique applications (special order)Applications:Used wherever a leak-proof swivel connection is needed in pipelines or in combination with hoses to eliminate hose twistingIndustries range from petroleum, petrochemical, refining, mining, distilling, paint, farm irrigation and fertilizing, wastewater treatment plants and food and beverage process equipment. Swivel joints are found in blending plants, drum filling applications, fluid and dry bulk transfer, vacuum trucks, oil and gas trucks and water trucks. Larger swivels can be found in the steel industry, marine bulk transfer and many more.Notes:The Swivel should be packed such that the surfaces coming in contact with the fluid being handled are compatible with that fluid. In case of the use of the swivel in submerged service, this would include the dust seals and ball bearings. We always recommend the use of the stainless steel ball bearings when building a swivel for submerged service, since should the standard carbon steel ball bearings rust together, they make it possible to dissemble the swivel and may affect operation.Lubrication should be performed periodically, depending on service and operating conditions. Twice yearly is normally sufficient.