Ductile cast iron. Mechanical sealing method using a combination of stainless steel bellows and TFE containing glass fiber. Oil-less bearings eliminate the need for lubrication .
U-2000(D) Series
Ductile cast iron. A short tube with flanges is installed to permit flange connection. Double ball-race swivel joint for low pressure service.
U-3000(C) Series
Forged Steel (3/8" thru 2") Cast Steel (2 1/2") Double ball-race swivel joint for medium to high pressure service.