Technical data sheets
Scientific name IWATA NK-2 cup
Int. vertical height (mm) 430±0.1
Int. orifice (mm) Φ3.81±0.05
Ext. orifice (mm) Φ6.0±0.5
Centistokes range 70-370
Efflux time (sec) 20-105±0.2s
Details of IWATA Cup
Int. diameter (mm) 50±0.05
Ext. diameter (mm) 86±0.1
Int. orifice length (mm) 10±0.1
Operating Temperature (℃) 0-50±0.2