Valves

Useful links

Here is the link to the liquid handling page. Here is the link to the syringe pump page.

Automating the Hamilton Valve

The photo on the left shows a Hamilton manual valve connected to a servo motor. The motor can change the fluid path, to connect the center port to either of the two other ports. This choice can be dictated by a computer controlled microcontroller.

Parts of the automated valve

The valve itself needs to be held in a housing that includes a 3d printed plastic part and an aluminum channel. There is also a 3D printed spacer, a Servo motor (source), a servo connector (source) and a brass adapter to make the connector fit the shaft of the valve.

Hamilton 3 port, two way valve

This link will take you to the Hamilton Valve page where you can purchase this valve. In October 2024, the price was $125. The ports are threaded for 1/4 x 28 fittings such as those found here.

Fluid path

The center port can be connected to either a port on the left or one on the right.

6-6 valve

Here is a link to the Hamilton 6-6 valve. The October 2024 price was $190.