Viscosity And Specific Gravity Limits; Sound Level - Johnson Pump MDR Series Instruction Manual

2.7 Viscosity and specific gravity limits

Impeller
diameter
-1V
1VD

2.8 Sound level

Highest measured sound level for the MDR-pump is 70 dB(A) for pump fitted to standard
electric motor.
MDR/EN (0909) 1.0
Max. viscosity cP Specific gravity kg/dm
10
30
3
1.2
1.8
11