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Pumps

Peristaltic Pumps

Peristaltic Pumps andTubing

The pumps presented on pages 94 – 108 require peristaltic tubing

to operate. Flow rate of a given fluid through a peristaltic tubing

pump depends on two variables:

1. The speed of the pump, measured in revolutions per minute (rpm)

2. The volume held within the internal diameter (ID) of the selected tubing

Variable Speed Pump Flow Rates

For a variable speed pump, such as the products on pages 94 – 100,

112 – 115, and 118 – 119, the fow rate of a channel can be changed

by varying the pump rpm, or by using tubing with different IDs, or a

combination of both.

Fixed Speed Pump Flow Rates

For a simple inexpensive fxed speed pump, such as the MS/CA line

on page 108, the only variable is the tubing ID. Therefore, to change

the fow rate of a fxed speed pump channel, the operator must use

tubing with a different ID.

Single-channel andmultichannel peristaltic tubing pumps are available

in this catalog. The number of channels refers to how many pieces

of tubing that can be used simultaneously. Tubing with different IDs

can be used in each channel to deliver varying fow rates at any given

pump speed.

All microprocessor controlled drives are LabVIEW

™

compatible and can easily

be integrated into process control systems. The LabVIEW drivers can be

downloaded from the website: www.idex-hs.com/ismatec

Note

Treat the liquid gently (e.g. living cells)

Improve the delivery stability

Increase the repeatability

Guarantee optimum tube centering

The tube is progressively closed,

starting from the center outwards.

Convex Rollers and Concave Tube-Bed

Connectors and adapters for peristaltic tubing are on pages 59, 60 and 61.