[labnetwork] Fwd: N2 Pressure Builder

[David Wolff]

> Keep in mind that if you use nitrogen cylinders from their 2400 psig pressure (as delivered) and use them down to just over 500-750 or 1500 psig for one application that requires high pressure, you can then move that cylinder to another application and use it down to the normal return pressure of ~250 psig or thereabouts.  Although the high pressure requirement is an inefficient use of a nitrogen cylinder, you can move the cylinder to a lower pressure requirement application and use up the balance.
> 
> David Wolff
> Wolff Engineering
> Wolff_Eng at icloud.com
> 860-604-3282
> From: labnetwork <labnetwork-bounces at mtl.mit.edu <mailto:labnetwork-bounces at mtl.mit.edu>> on behalf of Dennis Schweiger <schweig at umich.edu <mailto:schweig at umich.edu>>
> Sent: Thursday, August 7, 2025 11:05 AM
> To: Travis Venables <venables at seas.upenn.edu <mailto:venables at seas.upenn.edu>>
> Cc: Fab Network <labnetwork at mtl.mit.edu <mailto:labnetwork at mtl.mit.edu>>
> Subject: Re: [labnetwork] N2 Pressure Builder
>  
> Travis,
> 
> Good morning.  Here at UofMichigan, we were using a pressure booster (see attached photo) for a nano-imprinter application where we needed 1500PSI N2.  This worked ok, and we used a cylinder as the storage tank so that we had some volume.  However after having to rebuild this pressure builder unit twice in the span of 12 months (bad seals), it became easier to just use a cylinder of N2 gas, and swap the cylinders out as needed.
> 
> Haskel makes some good stuff, when I was looking to do 15,000PSI Helium testing, but I've never actually worked with any of their equipment.
> 
> Thanks,
> 
> Dennis Schweiger
> University of Michigan/LNF
> Facilities
>  
> 734.647.2055 Ofc
> 
> 
> On Wed, Aug 6, 2025 at 11:40 AM Travis Venables <venables at seas.upenn.edu <mailto:venables at seas.upenn.edu>> wrote:
> Hello everyone,
> 
> Here at QNF we have a need to bring our house N2 pressure (sitting at 100psi) up to 500-750psi for a Nanonex NX2600 Nanoimprint tool. We currently utilize a Maximator system which is controlled pneumatically with house CDA. We are having a lot of issues with o-rings drying up and needing regular regreasing which becomes labor intensive. I am curious what everyone uses for N2 pressure builders in their facilities. Thanks!
> -- 
> Travis Venables
> 
> Lead Cleanroom Equipment Engineer
> Quattrone Nanofabrication Facility
> University of Pennsylvania
> https://www.nano.upenn.edu <https://www.nano.upenn.edu/>
> P: 215-898-1787
> 
> 
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