American Block provides a complete range of hammer unions, swivel joints, plug valves, integral fittings, pup joints, circulating and cementing hoses, manifolds, choke valves, check valves, safety relief valves and ring gaskets. The quality of our products surpasses the industry standards. Our products are manufactured from the highest grade of forged steel. While more expensive to manufacture, there is a unique benefit in this manufacturing method that includes superior strength and longevity. American Block unions are interchangeable with other major suppliers, designed to API and are DNV approved.