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Hydrogen regulator for the Aerostak A-2000

Shipping today: original HDRX-R450 line — configured platform: quotations open · qualification units planned 2027 Q2

The H3 Dynamics / HES Aerostak A-2000 (2 kW) specifies a hydrogen inlet of 0.6 – 0.8 bar in its manufacturer datasheet. There is no universal fuel-cell regulator — outlet pressure and flow must be fitted to the stack. This is the MEYER configuration fitted for it:

What regulator does the Aerostak A-2000 need?

A two-stage regulator fitted to 0.6 – 0.8 bar at the stack inlet — held to ±0.1 bar as standard — with flow sized at 30 SLPM, rated for 350–500 bar cylinder supply. Single-stage units drift as the cylinder empties; the HDRX-R's second stage works from a near-constant intermediate pressure, so the Aerostak A-2000's inlet window holds from full cylinder to reserve. Build it in the configurator — the part number compiles as you go.

HDRX-R350-070-30-P… · ports set in the configurator
Fitted outlet setpoint0.7 barg — inside the Aerostak A-2000 window, held to ±0.1 bar as standard
Fitted flow30 SLPM (sized)
Supply classes350 / 400 / 450 / 500 bar
ConstructionTwo-stage · 316 stainless steel (no hydrogen embrittlement) · Ø 65 mm · ~245 g target · M18×1.5 cylinder connection

Inlet window per manufacturer datasheet — verified July 2026.

Configure & request a quotation →Matching cylinders

Frequently asked questions

What regulator does the Aerostak A-2000 need?
The Aerostak A-2000 specifies a hydrogen inlet of 0.6 – 0.8 bar per its manufacturer datasheet. The fitted MEYER configuration is HDRX-R350-070-30: outlet set inside that window and held to ±0.1 bar as standard, flow sized at 30 SLPM (sized).
Can I use it with cylinder pressures above 350 bar?
Yes — the same fitted outlet and flow are available in 400, 450 and 500 bar supply classes (HDRX-R400/R450/R500); select the supply class in the configurator.
Is the regulator available now?
The original HDRX-R450 450-bar drone regulator line is available today. The next-generation configured HDRX-R platform is in its development programme: configuration quotations are open now, and qualification units are planned for 2027 Q2. Your quotation carries your exact configuration.

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