It adopts the standard of GB12240, API599, API6D
way of drive

manual power-driven , worm-gear-driven

pressure PN0.6~1.6 MPa(fully lined )
PN0.6~4.0 MPa(sleeved)

Size DN15~500mm

Pressure(pound)ANSI 150LB*(fully lined )
ANSI 150~600LB(sleeved)
Size (inch)NPS 1/2~20

pressure (pound)ANSI 150lb~900lb PN1.6~16.0(MPa)
NPS 1/2~20 DN 15~500mm
size(inch)NPS 1/2~20
lever operated X63F worm-gear operated X363F pneumatic operated X663F