Watson-Marlow 501RL User Manual

Page 16

Flow rates

The flow rates given below were obtained using silicone tubing, with the

pumphead rotating clockwise, 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, and fluid viscosity.
Tube life will be reduced when pumping against pressure.
The flow rates shown are the combined flow using the Watson-Marlow

Double-Y tubing elements. Flows for two separate channels are each

approximately half that given.

505L flow rates (ml/min)

Tube #

119

16 25

122

Tube bore

1.6mm 3.2mm 4.8mm

6.4mm

8.0mm 9.6mm*

Drive rpm

1/16"

1/8" 3/16"

1/4"

5/16"

3/8"

504S/U

505Di

125 230

385

495

685

505S/U

505Du

220

155

500 925

1540

1980

2750

505Di 300*

245

800 1500

2450

3150

4375

ml/revolution 0.7

2.3

4.2

7.0

9.0

12.5

* 9.6mm bore through pumphead and to delivery; 12.7mm bore to source

Tubing range

Double-Y tubing elements for 505L

Product codes

Tube bore

mm "

Silicone

Marprene

1.6

1/16

910.E016.024 902.E016.024

3.2

1/8

910.E032.024 902.E032.024

4.8

3/16

910.E048.024 902.E048.024

6.4

1/4

910.E064.024 902.E064.024

8.0

5/16

910.E080.024 902.E080.024

9.6*

3/8

910.E096.024 902.E096.024

* 9.6mm bore through pumphead and to delivery; 12.7mm bore to source. An

MNA 0345A twin tube clamp assembly, available from Watson-Marlow or its

distributors, must be purchased to enable the 9.6mm high-flow Double-Y

tubing element to be used.

This manual is related to the following products:

505BA