• The valve switch gear transmission adopts fan or worm gear and worm structure,which reduce the operating torque effectively• Gate valve structure
• Valve with tail stem which with 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～30mm）
• working medium : oil , nature gas , mud , consist of H2S CO2gas• working temp.：-46°C～121°C（LU）
• material：AA、BB、CC、DD、EE、FF、HH
• PSL：PSL1～4
• PR：PR1～2
• PR：PR1～2
Msn service