[labnetwork] Automatic gas shutoff at the source

[Mark Dye]

Typically gas cabinet and VMB assemblies have PLC or Life Safety controllers that can work either independently and or remotely for critical alarm shutdown.

Sensors installed inside the enclosure can detect via gas sensors or UVIR.  That are connected to the controller.  TGMS / FMS (facility management system) can also remotely monitor and shut down with the remote shutdown function.

Hazardous gases should have panels with pneumatic N/C valves at the minimum for the ESO.  The poly tubing in the event of a fire will melt and the valve(s) will close.

Best Regards,

Mark M. Dye
Director of Marketing and Business Development
SilPac
408-768-1362

On Apr 22, 2026, at 8:54 AM, Iulian Codreanu <codreanu at udel.edu> wrote:

 Hi Kostis,

Here at UDel it has been mandated that a fire alarm input to the TGMS closes all gas valves.

iulian Codreanu, Ph.D.
Director, Nanofabrication Facility
University of Delaware
Harker ISE Lab, Room 163
221 Academy Street
Newark, DE 19716
302-831-2784
https://udnf.udel.edu

On 4/21/2026 3:37 PM, Michelakis, Kostis wrote:
Dear Labnetwork colleagues,

We are reviewing our emergency procedures and I would like to ask, specifically for your hazardous and toxic gases, in the case of a fire alarm being triggered, if you make use of the building's Fire Alarm Control Panel (FACP) respective signal to automatically shutoff gases at the source.

We have at our disposal a range of engineering controls to shutoff gases at the source, but I am specifically interested to learn if the method of using directly the fire alarm signal has been mandated or otherwise chosen in your setting.

Thank you in advance for your consideration,
Kostis
--

Kostis Michelakis, PhD
DMF Lab Manager
kostis at slac.stanford.edu<mailto:kostis at slac.stanford.edu>
SLAC National Accelerator Laboratory
slac.stanford.edu<http://slac.stanford.edu>




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