SIHI 真空泵
Liquid ring vacuum pumps 液环式真空泵
With motor carrier design 带电机托架设计
LELC 90, 125, 150, 250, 325, 425
PRESSURE RANGE:
入口压力范围： 33 - 1013 mbar
SUCTION VOLUME:
入口流量： 32 - 470 m³/h
CONSTRUCTION TYPE
结构形式
SIHI liquid ring vacuum pumps are displacement pumps of
uncomplicated and robust construction with the following
particular features:
SIHI液环式真空泵是结构简单使用可靠的容积变化式泵，具
有如下特点：
nearly isothermal compression
几乎等温压缩
oil-free, as no lubrication in the working chamber
therefore non-polluting
在工作腔内无需润滑，因而无油，无污染
Capable of handling of nearly all gases and vapours
可处理几乎所有的气体和蒸汽
small quantities of entrained liquid can be handled
可处理少量的夹带液体
easy maintenance and reliable operation
易维护，高可靠性
low noise and nearly free from vibration
低噪音，几乎无振动
wide choice of materials, therefore applicable nearly
everywhere
广泛的材质选择，基本上可用于所有场合
shaft not in contact with the medium
轴不接触介质
protection against cavitation as standard
气蚀保护作为标准配置
incorporated dirt drain
一体式排污
no metallic contact of the rotating parts
旋转部件没有金属接触
During operation the pump must be supplied continuously
with service liquid, normally water, in order to eliminate the
heat resulting from the gas compression and to replenish the
liquid ring, because part of the liquid is leaving the pump
together with the gas. This liquid can be separated from the
gas in a liquid separator (see last page) and reused.
The pumps are equipped with a connection through which
the contaminated service liquid can be drained continuously
during operation (dirt drain), if necessary.
泵运转期间需连续不断地补充工作液（通常为水），以带走
气体压缩而产生的热量和补充部分随气体排出的工作液。此
部分工作液可在汽液分离器中与气体分开（请见样本附件部
分），以重新利用。
泵可按需要配备一个连接，以保证在运转条件下连续地排放
被污染的工作液。
The direction of rotation is clockwise, when looking from the
motor towards the pump.
从泵的驱动端看，泵的旋转方向为顺时针。
SIHI liquid ring vacuum pumps LELC are single-stage
SIHI LELC 系列液环式真空泵是单级泵。
APPLICATION
应用
Handling and exhausting of dry and humid gases; entrained
liquid can be handled during normal duty. The pumps are
applied in all fields where a pressure of 33 to 900 mbar must be
generated.
干气和湿气的处理和抽除；正常条件下可处理夹带的液体。
此真空泵可用于所有需要33 mbar到900 mbar的场合。