Standard:
Design & Manufacture:API 6D
Face-to-Face or End-to-End:ANSI B16.10
Presssure temperature ratings:ASME B16.34
Flange dimension(RF):ANSI B16.5
Inspection &Test:API598
Design characters:
Hard alloy seat can cut the strong thing in medium,so it is very good for sewage.
Epoxy coating with 300 micron.
Performance:
Class 150LB,300LB as specified in B16.34
FP.Full port design/RP.Regular Port/Reduced Port
Two piece/Split body,floating ball
Blow out proof stem
Flanged end,raised face
CAPI/ISO5211 Mounting pad
Lever,Worm Gear, Pneumatic, Electric Actuator
Nominal Pressure PN (MPa):
  1.0, 1.6, 2.0, 2.5
Testing pressure (water) Ps (MPa)
      Body seat:  1.5 times rated pressure
       Seat test:  1.1 times rated pressure