Alfa Laval MR-166S, -185S, -200S, -300 Liquid-Ring Pump

 

 

Application
MR is a liquid-ring pump specially designed for pumping liquids containing air or gas.
The pump is for use in food, chemical, pharmaceutical and similar industries.
The pump is mainly used for CIP-return application.

Standard design
All product wetted parts, i.e. pump casing, casing cover and impeller are made of acid-resistant steel AISI 316L. Seals are made of EPDM rubber.
Cap nuts, legs, leg brackets and shroud are made of stainless steel AISI 304. The shroud has noise absorbing lining inside. MR-166S, 185S and 200S: Adaptor is in cast iron which is zinc coated and lacquered making it highly corrosion resistant.

Shaft seal
On MR-166S, -185S and 200S, the mechanical single seals have stationary seal rings of acid-resistant steel AISI 329 and rotating seal rings of carbon.
The MR-300 has mechanical single seal with stationary seal rings of carbon and rotating seal rings of acid-resistant steel AISI 329.

Technical data
Max. inlet pressure: . . . . . . . . . . . . .400 kPa (4 bar).
Temperature range: . . . . . . . . . . . . . .-10°C to +140°C (EPDM).

Motor
Standard foot-flanged motor acc. to IEC metric standard 4 pol = 1500/1800 rpm. at 50/60 Hz.
IP55 (with drain holes with labyrinth plug), insulation class F.

Voltage and frequency (MR-166S )
3~, 50 Hz, 220-240V /380-420VY
3~, 60 Hz, 250-280V /440-480VY

Voltage and frequency (MR-185S, -200S and -300)
3~, 50 Hz, 380-420V /660-690VY
3~, 60 Hz, 440-480V 

 

Note! *S for pumps with ABB motor