DESIGN: BS1873, ANSI B16.34
FACE TO FACE: BS2080, ANSI B16.10
END TO END: BS2080, ANSI B16.10
FLANGE END DIMENSION: ANSI B16.5
BW END DIMENSION: ANSI B16.25
INSPECTION: API598

AVAILABLE END: FLG-RF, FLG-RTJ, BW
LANTERN RING: On request for class 300 lb and up
SEAT RING: Welded or Renewable
OVERLAY ON SEAT & WEDGE: API600 Trim No. 1, 5, 8, 16