Profile: Seaboard International, Inc. produces engineered oil and gas pressure control equipment. We design casing heads & spools, tubing heads, casing hangers, tubing hangers and gate valves. We offer model 1540 gate valve, which is designed with a forged body, expanding split gate and pressure-balancing stem. Our tubing hanger consists of a main body, an elastomer seal and compression/support ring. We are accredited with ISO-9001 standard.