1.Designed to bump non-rotating cementing plug(s) and increase the drill-out efficiency of plug(s).
2.The valve is made with phenolic material and molded with high strength concrete. Both the valve and concrete are easily drillable.
3.Excellent performance for flow endurance and back pressure holding.
4.有双阀、单阀两种形式供选择。Single valve and double valve versions are available.