# How does a multi-port syringe pump + selection valve (e.g., J-KEM suite) combo work?

**URL:** <https://accelerated-discovery.org/t/how-does-a-multi-port-syringe-pump-selection-valve-e-g-j-kem-suite-combo-work/173>\
**Category:** Tools\
**Created:** [May 15, 2024, 9:06pm UTC](https://accelerated-discovery.org/t/how-does-a-multi-port-syringe-pump-selection-valve-e-g-j-kem-suite-combo-work/173 "2024-05-15T21:06:03Z")\
**Posts on this page:** 1\
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**Author:** ![sgbaird](https://yyz1.discourse-cdn.com/flex003/user_avatar/accelerated-discovery.org/sgbaird/32/341_2.png) [@sgbaird](https://accelerated-discovery.org/u/sgbaird)\
**Post date:** [April 12, 2025, 7:55pm UTC](https://accelerated-discovery.org/t/how-does-a-multi-port-syringe-pump-selection-valve-e-g-j-kem-suite-combo-work/173/5 "2025-04-12T19:55:53Z")

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Nice to see the use of servos to control standard three-way valves (i.e., no differences in chemical compatibility with the automated system) in this recent article:

[https://pubs.acs.org/doi/full/10.1021/acsaenm.5c00084](https://pubs.acs.org/doi/full/10.1021/acsaenm.5c00084)

 ![Screenshot_20250412-155301](https://canada1.discourse-cdn.com/flex003/uploads/accelerated_discovery/original/1X/40d215ee733c81827f5ffd6fb5bad2afe13962af.jpeg)  
 ![Screenshot_20250412-155251](https://canada1.discourse-cdn.com/flex003/uploads/accelerated_discovery/original/1X/921ee3ba2fed52d1be203b5323622d4bd4eb45b6.jpeg)  
 ![Screenshot_20250412-155348](https://canada1.discourse-cdn.com/flex003/uploads/accelerated_discovery/original/1X/4a17bb377dae0dd7b73490f2c0746dc2de7bf87b.jpeg)

Full system:

 ![Screenshot_20250412-155455](https://canada1.discourse-cdn.com/flex003/uploads/accelerated_discovery/original/1X/43ca87242c678896a4ba07cb142cdd7d48f8ba64.jpeg)

Also nice that they validated it with a bimetallic (Co and Ni) synthesis workflow with characterization afterward.

Hoping to see a video: [Possible to see video? · Issue #1 · Materials-Informatics-Group/Robot\_FLUID\_3D-Parts · GitHub](https://github.com/Materials-Informatics-Group/Robot_FLUID_3D-Parts/issues/1)

EDIT: here’s a short video of the system (one syringe pump, I think the second from the right) in action:

[![](https://canada1.discourse-cdn.com/flex003/uploads/accelerated_discovery/original/1X/0a88aaf65073444b57c8255075cbd5a570ba88c6.jpeg "FLUID (Flowing Liquid Utilizing Interactive Device) in operation") ](https://www.youtube.com/watch?v=lG3MJm9WmCY)

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