日本YUKEN变量叶片泵PV2R4-237-FRAA-41

插座焊接凸缘被使用。  （前缀“F-”的管法兰
In case of using socket welding flanges,
Therefore, please pay cautious
attention to the operating pressure when
如果PV2R4-237被用在转速高于1700转/分，
Standard pumps can be used
Special seals (Viton seals) are
required when phosphate ester type
调整压差→或更换相称的电磁阀正常的，
If PV2R3-116 is used at speed above
1700 r/min, the suction pressure is limited to 0 kPa (0 in. Hg.).
 

日本YUKEN变量叶片泵PV2R4-237-FRAA-41

吸入压力被限制为-13千帕（英寸汞柱真空3.94）。
normal because of strength of the flanges
fluids are used. (Prefix
"F-" to the pipe flange
kit number when ordering.the
socket welding flanges are used.
在使用插座焊接法兰，存在这样的情况，
操作压力应设定为比低的情况下
径的电动球阀小很多。工作压差是否不合适→
there is a case where the operatin
g pressure should be set lower than
如果PV2R3-116被用在转速高于1700转/分，