Experimental investigation of the internal pressure and flow fields in a safety valve

The objective of the tests reported in this paper was to study the flow and pressure distribution inside a typical safety valve, and other parameters such as valve geometry and extent of opening, which can affect the performance and relief capacity of the valve. Four test were carried out: flow visualization; choked air flow; incompressible flow tests with water; and two-phase choked flow test with Freon and water. 6 refs.