| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a structure which is desired to separate only a liquid contact part and clean the liquid contact part easily, because fluid foods, chemicals, coating and the like are required total substitution when liquid is substituted in most cases, and which is easily reassembled.SOLUTION: A seating surface of an O-ring 7 for sealing an outer periphery of a rod 3 and an end surface of a barrel 2 is formed, and a sleeve 5 for sliding and supporting the rod 3 is also provided. A barrel unit inserted into a center hole of a barrel fitting tool 1 is combined with a volume measuring discharge device, and the sleeve 5 is fastened and fixed with the O-ring 7.</p> |
