Model 7725i Rheodyne Manual Injection Valve

Its the industry standard.

Unless you need a PEEK valve or a preparative valve, its pointless to buy anything else.

• Wider port spacing. Much easier to attach tubing and tighten nuts

• No "zero" position. This means that the flow path is not interrupted when switching from LOAD to INJECT and hence there is no pressure surge. Rheodyne call this "Make before Break" (MBB) Technology

• Built in contact closure. The valve can be used to start the data system or gradient automatically.

• Central valve tensioning. Not often required but this means that the valve tensioning adjustment is quick, requires no tools and is impossible to get out of balance.

• Patented Rheodyne needle port design connects the tip of the syringe to the sample loop, ensuring zero sample loss.

• Mounting bracket available to mount the valve on any HPLC system.