2 questions “Funnel the Spec” to one product type.
Start at the top, follow the path down, end on the recommendation. Designed for distributors to send a customer ahead of a quote call.
Question 1
Where does the nitrogen have to leave the system — at plant pressure, in cylinders, or on a remote site with no building?
Plant pressure · standard industrial demand
Question 2a
Is there an indoor location with space, power, and a building to house the equipment?
If Yes · permanent indoor install
Recommend
PSA Generator — Standard
The workhorse. Standard plant pressure, 95% to 99.999%+ purity, sized on a specific purity-and-flow pair. Available as skid, cabinet, or compact — and as a portable chassis variant when the demand needs to move.
If No · remote site, no indoor space, or rapid deployment
Recommend
Containerized System
The full chain — generator, feed compressor, dryer, filter, buffer — inside an ISO container. Set on a pad, connect power, run in days. Also the right answer for asset- relocation optionality.
Cylinder pressure · 2,200 PSIG and above
Question 2b
Is this aviation, defense, munitions, or specialty cylinder filling?
If Yes · mission-critical fill operations
Recommend
High-Pressure Generator
PSA core plus a gas booster and a cylinder-fill stand — the only format engineered to fill bottles. Deployable wheeled package or stationary fill skid. South-Tek is the anchor brand for this segment.
If Industrial gas-charging (accumulators, gas springs, refrigeration)
Recommend
High-Pressure Generator
Same fill-system format — booster + fill stand — sized to the customer's cylinder demand. Clean payback against bottled-gas deliveries for any customer running these operations at volume.
Three structural rules behind the tree: feed-air treatment is not optional — a desiccant dryer to ‑40°F PDP plus a coalescing filter upstream of every PSA install, on every format (refrigerated dryers destroy CMS beds). Size to peak, never average — the buffer vessel smooths swings but does not erase them, and a generator that can't hit peak ends in supplemental cylinder deliveries that erode the payback case. Quote the system, not the generator — every PSA install needs the dryer, the coalescing filter, the buffer vessel, and the on-line purity analyzer; selling the generator alone leaves the customer with capital that can't hit spec.
The format is decided by where the nitrogen leaves the system — plant pressure, cylinder pressure, or remote site. After that, every PSA sizing conversation is the same three numbers: purity, peak flow, monthly spend.
SPC distributor playbook Nitrogen Generation · how to qualify in one call
