| 摘要 |
<p>A control valve (100) includes an elastomeric flow tube (126), a plunger (124) having first and second ends, and a pinch member (502) connected to the first end of the plunger (124). The pinch member (502) is situated adjacent the flow tube. A reference surface (128) is positioned generally opposite the pinch member (502) such that the elastomeric tube (126) is squeezable between the pinch member (502) and the reference surface (126) to control fluid flow through the flow tube. A first guide spring (511) is situated between the pinch member (502) and the first end of the plunger (124), and a second guide spring (510) is situated adjacent the second end of the plunger (124). A damper (552, 554, 556) may be connected to the plunger. Further, a pressure containing member (130) may BE situated about at least a portion of the flow tube.</p> |
