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Welch

®

Peristaltic Pump Features

5 3 3 4 4 2 Kit 3200K-01 included with pump. 1 Model 3100Model 3200 1 Complete system - pump head, tubing & drive•Order with just one catalog number• Ready out of the box 22 Lok-n-Flow cartridges – easily replaceable tubing cartridge•Economizes the use of expensive tubing•Tubing waste dramatically reduced3•No tools necessary – changing tubing is as easy as 1, 2, 3 (see page 2) •Reduce maintenance time with fast tubing changes 3 Bi-directional (reversible) flow control& max flow button•Clean up and priming made easy 4 Variable speed• Digital and analog flow control 5 Console drive•Stackable & portable•Power supply within housing...a wide selection of tubing materials and pump accessories.
A B C D Figures A, B, C and D illustrate the basic operating principle of Welch’s peristaltic pumps. As the Lok-n-Flowrollers rotate and compress the cartridge tubing a vacuum is created drawing fluid into the pump head. The continuous alternating cycle between compression and rotation of the roller moves the solution at a controlled flow rate. Since the solution only comes in contact with the tubing, clean up and cross contamination control from application to application is easy by just changing the tubing.Welch model 3100 and 3200 peristaltic pumps are designed with today’s end user in mind. The days of tubingcreep, special tools, and disposing of tubing before you need to are in the past. With Welch’s Lok-n-Flow head and cartridge design, just use and replace what is needed (Refer to page 2, "Changing tubing is as easy as 1, 2, 3”). Welch brand tubing and Lok-n-Flow cartridge assemblies are made of the highest quality materials - silicone,Santoprene
® rubber, PVC, and Viton
® . Chemical compatibilitycharts for these materials are available on pages 10through 12 or visit our web site at www.welchvacuum.com.

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