Design and Manufacturing :
BS 1868

Inspection and Testing
API 598, BSEN 12266 Part -1 & 2

End Flanges Dimension
ASME B 16.5 (For NPS<= 24′”), Series A & B {For NPS >= 24}, MSS SP-44 (For >= 24)

BW End Dimension
ASME 16.25

Face to Face & End to End Dimension
ASME B 16.10, BS 2080

Gasket Design :
ASME B 16.20

Disc Design
Gravitational acceleration

Tolerance
Face to Face: +2.0mm for NPS<= 10″ & +3.0mm for NPS >10″

Special Features
IBR Certifird.
Hydraulic Cylinder Arrangement.
NACE MR 0175 & MR 1030.
Lift type check valves will supplied for the sizes for NPS <2″ Rest of the sizes are in swing type design