隔膜真空泵工作原理 An elastomer diaphragm moving up and down by an eccentric. On the down-stroke it draws the air through the inlet valve. On the up-stroke the diaphragm forces the air through the exhaust valve and out of the head Wiggens BioFlo PRO蠕動泵 Wiggens CSC系列 防腐蝕溶劑回收真空泵 WiggensC410 防腐蝕隔膜真空泵 WIGGENS R-12SN 旋片式油封真空泵 WIGGENS V300 無油柱塞泵