Watson-Marlow MR-Series - Manual (Page 8)

Revision 1.4 / August 2013 Visit our website at www.masosine.com 8
Operation Guidelines, cont.
6. Be certain that all suction and discharge valves lines, etc. in the system are open and clear of
any clogs. This will prevent over pressurization of the pump. Warning: The MasoSine Pump is
not supplied with a relief valve and the maximum discharge pressure rating is 150 psi.
Exceeding this maximum pressure rating could result in severe personal injury.
7. The maximum MasoSine Pump operating speeds are:
MR-120
MR-125 MR-130 MR-135/MR-135RF MR-150/MR150RF
800 RPM 800 RPM 800 RPM 600 RPM 600 RPM
Warning: Exceeding the maximum speed rating for your MasoSine Pump could result in
severe personal injury or loss of life. Since some pumpages may be adversely affected by
operation at high rotor speeds, we recommend that you contact Watson-Marlow MasoSine
with pertinent application information before running at or near these speeds.
8. It is recommended that the MasoSine Pump wet end be fully disassembled for cleaning after
every use per the instructions in the Wet End Disassembly section of this manual. Sanitizing
the MasoSine Pump in a Clean-In-Place (CIP) system with a common disinfecting or rinsing
solution may not fully clean the wet end of the pump.
9. Warning: When pumping explosive, flammable or hazardous fluids, please contact the factory
for application assistance.
10. The MasoSine Pump airborne noise emissions do not exceed 70 dB(A).
Wet End Disassembly
Reference the isometric drawing below for parts identification while following the wet end disassembly
and assembly steps.