Profile: Young Oil Tools, Inc. supplies a complete line of products to oilfield industry. We offer threaded check valves, flanged check valves, wafer check valves, ball check valves, grooved check valves, in-line chemical check valves and weld-end check valves. We produce threaded-end check valves in various materials, which include bronze, aluminum bronze, cast iron, ductile iron, steel and stainless steel.