Bơm chân không LEM 325, LEM 425


Bơm chân không (Liquid Ring Vacuum Pumps) SIHI LEM 325, LEM 425 là dạng bơm chân không 1 cánh dùng vòng nước để làm kín, có cấu tạo không phức tạp và kết cấu vững chắc. 

LEMA 325, LEMA 425  có áp suất làm việc từ 33 đến 1013 mbar, lưu lượng hút đạt được từ 100 m3/h đến 470 m3/h

LEMA 325, LEMA 425 là dòng bơm nhỏ gọn bao gồm thân bơm đi chung với động cơ, có 2 loại kích cỡ vỏ bơm là LEM 325 và LEM 425 

CONSTRUCTION TYPE
SIHI liquid ring vacuum pumps are displacement pumps of uncomplicated and robust construction with the following particular features:
non-polluting due to nearly isothermal compression
oil-free, as no lubrication in the working chamber
handling of nearly all gases and vapours
small quantities of entrained liquid can be handled
easy maintenance and reliable operation
low noise and nearly free from vibration
wide choice of material, therefore applicable nearly everywhere
shaft not contact with the medium
protection against cavitation as standard
incorporated dirt drain
incorporated central drain
no metallic contact of the rotating parts
The SIHI liquid ring vacuum pumps LEM are single-stage ones.

APPLICATION
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 created by robust vacuum pumps.

NOTE
During operation the pump must continuously be supplied 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 catalogue part accessories).
It is possible to reuse the service liquid. The pumps are equipped with a device by which the contaminated service liquid can continuously be drained during operation (dirt drain), if necessary.
The direction of rotation is clockwise, when looking from the drive on the pump.

Cut-away diagram LEM 325, LEM 425
Performance Characteristics LEM 325
Performance Characteristics LEM 425

Motor Selection
For our products we offer a lot of different motor types.
To identify the right motor please specify frequency, voltage and protection class.
Example of an Order:
LEM 325 AZ AAE 0B 4 with 7.5 kW AC motor, 50 Hz, 400 V, IP55

Link download catalogue để tham khảo thêm: Catalogue LEM 325 425