Watson-Marlow 701S/R - Manual (Page 10)

Part 4: Appendices
Flow rates
These flow rates were obtained using Marprene tubing pumping water at 20C
with zero suction and delivery pressures (unless otherwise stated). Where an
application is critical, the flow rate should be determined under operating
conditions. The important factors are suction and delivery pressures,
temperature, fluid viscosity and tube material.
Flow rates 701S/R (litres/hr) Minimum flows 2% of rates given
Tube # 193 88 189 191 92
Tube bore 9.6mm 12.7m
m
15.9m
m
19.0m
m
25.4m
m
3/8" 1/2" 5/8" 3/4" 1"
360rpm 420 780 1080 1500 2000
Tubing range
Pump performance depends upon the accuracy and consistency of the
tubing. Watson-Marlow tubing is specially formulated for peristaltic pumping
and it is manufactured and quality controlled to our own specifications. We
recommend Marprene tubing whenever it is chemically suitable.
701S/R Tubing range product codes
Bore Tube
# Marprene Silicone
9.6 mm 3/8" 193 902.0096.048 910.0096.048
12.7mm 1/2” 88 902.0127.048 910.0127.048
15.9mm 5/8” 189 902.0159.048 910.0159.048
19.0mm 3/4” 191 902.0190.048 910.0190.048
25.4mm 1” 92 902.0254.048 910.0254.048
Bore Tube # Neoprene Bioprene
9.6mm 3/8" 193 920.0096.048 903.0096.048
12.7mm 1/2”
88 920.0127.048 903.0127.048
15.9mm 5/8” 189 920.0159.048 903.0159,048
19.0mm 3/4” 191 920.0190.048 903.0190.048
25.4mm 1” 92 920.0254.048 903.0254.048
Bore Tube # Butyl* Viton
19.0mm 3/4” 191 930.0190.048 970.0190.048
25.4mm 1” 92 930.0254.048
* Butyl tubing should not be used at pumphead speeds greater than 200rpm.
Page 10