China High Quality Double Disc Gate Valve Suppliers – Flange Gate Valve,PSB,CS,SS,WCB,CF8,CF3,CF8M,CF3M,4A,5A,Monel,150LB,300LB,600LB,900LB,1500LB,2500LB – UNIQUE

Standards compliance

Design and Manufacture:ANSIB16.34,API600 API6D,API603,BS1414 Face to face(end to end):ANSIB16.10,API6D Flanged connection:2″~24″to ANSI B16.5, 22″,26″~36″to MSS-SP-44 to API605 on Request Test and inspection:API598,API6D Butt welded end:ANSIB16.5 1. Anti-friction ball thrust bearing:Reduces friction between mating parts to ensure smooth operation 2. Grub screw:Secures yoke nut in the bonnet 3. Grease nipple:Supplies lubricant to the mating parts