Stream-Flo Industries Ltd. is a privately owned and operated Canadian manufacturer of wellheads, gate valves, ESD shutdown systems and a full line of API-6D check valves. Founded in 1962, the company has grown to be one of the largest manufacturers of its kind in Canada and is continually expanding its export activities. Stream-Flo is headquartered and manufacturers valves in Edmonton, Alberta, Canada and operates numerous sales and service offices around the world, including its US Headquarters in Houston, Texas.

Stream-Flo offers a “full line” of API-6D and API-6A check valves in size ranges from ½” to 60” sizes and pressures ranging from 300 psig to 15,000 psig in all ANSI/API classes. The Stream-Flo’s product offering includes swing, nozzle, wafer and piston type check valves under the brand names of Crown-Judd and Crown-Europa.