Superlok USA is an industry leader in instrumentation products including fittings and valves. Superlok Instrumentation Fittings and Valves set the bar for surface finish, ease of installation, and machining technology. Their numerous certifications include ISO 9001, NUCLEAR N STAMP, TUV CERT, GL CERT, LLYODS REGISTRY CERT, DNV CERT, CNG BALL VALVE and others are testament to their high quality product line. They currently stock thousands of products in inventory in the United States.