Ball Screw Gate Valves The body and flanges are integral (non-welding). Shot Blasting for every parts of valve. Phosphating to improve corrosion resistance. rac valves - ball screw gate valves supplier is a type of large bore gate high pressure valve which were improved from Cameron FLS-R gate valve, its the main component of frac tree, the frac valve is often used on the top of the wellhead on high pressure oil well, can do the frac job for Isolating the fluid from the well. The body and flanges are integral (non-welding). Shot Blasting for every parts of valve. Phosphating to improve corrosion resistance. Features: Valve with Ball Screw Ball screw structure lowers operating time Gate valve design Stem structure is pressure balanced with switch indicator wellhead equipment manufacturers Specifications: Applies to big bore high pressure system Working pressure:2000 PSI-20000 PSI Connection: Flange* Thread Union BW Size: 1 13/16"-7 1/16' Working temperature:K. L .P. R .S. T. U. V Material Class :AA.BB.CC ,DD .EE.FF.HH Specification level: PSL1-PSL4 Performance Requirement: PR1. PR2 AQE wellhead valves Application Oil, Chemical industry, etc. Medium Oil Gas Water.etc