Design Features: 1. 3 "plug valve worm gear to pay the handwheel turn on the device, both at room temperature orlow temperature environment to open freely, flexible operation. 2. Pressure seal between the sealing the arc piece with the valve body to achieve through the square ring. 3. Maintenance and upkeep of the body seal does not need to be removed from the pipeline,disassembly tool into not need to Chi. Maintenance just want to change the square seals reliablesealing plug. 4. The seal arc sheet and cocks the metal to metal contact surface, through the high-precision machining, so that excellent sealing performance between the sealing arc sheet and cocks. 5. Visualization valve position: cocks cover visual rotary rotary stopper clearly shows that thevalve is fully opened or closed. The brake spring limit of the valve in the desired position. Parameter S/N Model Description Rated WPEnd connection 1 SF42-1 1 plug valve 6000psi 2male (LP) 2 SF70-1 1 plug valve 10000psi 2male (LP) 3 SF105-1 1 plug valve 15000psi 2male (LP) 4 SF105-1 1 plug valve 15000psi 2union (F*M) 5 SF42-2 2 plug valve 6000psi 2 female (LP) 6 SF42-2 2 plug valve 6000psi 2union (F*M) 7 SF70-2 2 plug valve 10000psi 2 female (LP) 8 SF105-2 2 plug valve 15000psi 2union (F*M) 9 SF42-3 3 plug valve 6000psi 3female (LP) 10 SF70-3 3 plug valve 10000psi 3female (LP) 11 SF105-3 3 plug valve 15000psi 3union (F*M))