Norwalk Valves Manufacturers 13457 Excelsior Dr Dragon Valves, Inc. founded in 1945 manufactures instrumentation, manifold and specialty valves. All valves are designed, machined, assembled, and tested in Norwalk, California. Dragon manufactures power valves in accordance with ASME Section III Class 1, 2 and 3 under its Norwalk CA Valves Manufacturers Dragon Valves Inc www.dragonvalves.com valve valves air operated needle needle valves nuclear nuclear valves manifold manifold valves cartridge check cryogenic diaphragm forged body severe service soft seat remote controlled gage gauge gage with Stem Test Connection h valve valves air operated needle needle valves nuclear nuclear valves manifold manifold valves cartridge check cryogenic diaphragm forged body severe service soft seat remote controlled gage gauge gage with Stem Test Connection h Business Reviews Dragon Valves Inc Testimonials