Additional Drilling Equipment - Brand New! With a few chips in paint. National Oilwell 2in 5000 PSI Mud Gate Valve. Part Number GV2031-2522110. Features:2inWorking Pressure: 5000 PSIUsed for mud, cement, fracturing and water service. Location: Beaumont, Texas. For complete listing information please select the Click To Bid button to see this item on eBay.