| 摘要 |
<p>A low pressure drop check valve includes an apertured, streamlined guide body (45) mounted on struts (40). Forward flow through the valve unseats the valve member (35), which receives therewithin a face (50) of the guide body allowing streamlined flow around the valve member and guide body. Reverse flow is accommodated by apertures (60) and (65) in the guide body, flow through the apertures being applied to an inner surface of the valve element, thereby seating the valve element for blocking such reverse flow. The check valve is also provided with damping means (70) and (85) for minimizing valve element oscillation and bounce. Maintenance of the valve in an open condition is enhanced by maintenance of a low pressure region downstream of the poppet. The struts (40) extend in directions with a component tangential to the guide body, as shown in Fig. 2. to accommodate thermal and fluid loading. <IMAGE></p> |
