... constricting portion, a cylindrical injection portion, and an expanding. Mixer-injector, also called venturing injector, has a constricting portion, ... portion, with an injector port entering the injection portion. Mixer-injector is used for injecting and mixing fluids (gases ... time using5) Intersection check valve: resists to nickel alloy-C spring, fluorine rubber sealing mat, TEFION ball, KEI-F base6 ...