| 摘要 |
<p>PURPOSE: To provide a pump device for a meter to prevent outflow of oil gathering in a casing during cleaning and exchange of a strainer on the inflow side and prevent filling of a float chamber with oil. CONSTITUTION: The inflow port I of a casing C is communicated with the inner side 3 of a strainer 2 and the outside chamber 4 of the strainer 2 is communicated with the chamber 7 on the inlet side of a pump 6 through a check valve 5, and the outlet passage 23 of the float chamber 21 is communicated with the chamber 4 on the outside of the strainer 2.</p> |
