ENDURANCE PACKING

high-pressure fluid end packing assemblies for positive displacement high-pressure plunger pumps used in oil and gas high-pressure fluid fracturing applications, the fluid end packing assemblies, namely each having pressure rings, a Chevron ring, a header ring, a header insert, and a wiper ring sold as a set to hydraulic fracturing service companies for use in high-pressure pumping applications rated up to 20,000 psi and for pumping a mixture of water, sand, and chemicals for these fracturing applications