-Design: ASME 16.34/ API 6D/ API 600/ BS 1414
-Face to Face: ASME B16.10
-End Flange: ASME B16.5, ASME B16.47
-BW End: ASME B16.25
-Test: API 598/ API 6D/ BS 6755
-Special: NACE MR-01-75
-OS & Y, Rising stem
-Bolted Bonnet with spiral-would gasket
-Flexible Wedge
-Backseat Weld-Deposited
-Threaded or welded seat ring
-Renewable seat rings
-Extended Bonnet for Cryogenic Service
-Flanged or butt welded ends.
-By Pass on Request
-Locking Device Optional