High Pressure Iron (HPI) Inspection & Recertification 101 Coil Solutions provides inspections and recertification for all high pressure surface piping that is used in pressure pumping operations. Examples of these applications are fracing, fluid pumping, nitrogen pumping, productions testing (flow back) and cementing. All work is preformed to IRP 8 and IRP 4 standards. The published minimum requirement is a … Read More