•  The valve switch transmission adopts the ball screw structure, effectively reduce the operating torque and achieve common valve 1/3. •  Gate valve structure •  Valve with tail stem which has pressure balance and switch indicator •  It is supply for big diameter high-pressure valve structure. •  Working pressure :2000PSI~20000PSI •  nominal bore :1.13/16~9(46mm~230mm) • working medium : oil , nature gas , mud , consist of H2S CO2gas •  working temp.:-46°C~121°C(LU class ) •  material :AA、BB、CC、DD、EE、FF、HH •  PSL:PSL1~4 •  PR:PR1~2 |