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Rheodyne® Model 9725 Injector

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number of ports 6
positions 2


5000 psi max. pressure

General description

The Model 9725 injector is ideal for both HPLC and soft gel LC purification procedures for biomolecules. Performance of this 6-port rotary injector is similar to that of the Model 7725 injector, but no metal contacts the samples. Model 9725 incorporates the patented make-before-break design (see Cat. No. 57620-U).

The 0.25 mm I.D. flow channels provide low dispersion when used with narrow I.D. columns, but prevent excessive flow resistance at flow rates used with larger analytical columns and preparative columns. Use with Rheodyne HPT fittings and high pressure PEEK tubing. Model 9725i includes a position-sensing switch.

Supplied with a 20 μL PEEK sample loop, Tefzel rotor seal, fittings for all ports, 22-gauge luer hub needle, needle port cleaner, two Tefzel vent tubes, wrenches, mounting screws and instructions.

Order additional sample loops separately.

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Legal Information

Rheodyne is a registered trademark of IDEX Health & Science, LLC

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