Citadel / all-metal aerospace platforms

Type I Aerospace Pressure Vessels

All-metal aluminum pressure-vessel platforms for aerospace systems where straightforward construction, corrosion resistance, packaging and program-specific interfaces matter.

  • Aluminum pressure-retaining architecture
  • Four aerospace platforms
  • Program-specific interfaces
Steelhead citadel family; representative configurations, not to scale.
Citadel / Rampart, Keep & Sentry Individual source photographs. Representative configurations, not to scale.

A Proven All-Metal Architecture.

Not every aerospace application requires a composite overwrap. Citadel provides an all-metal option for compatible pressure ranges and applications, with four platforms evaluated around volume, envelope, ports, mounting and qualification requirements.

Rampart long, black-coated Type I aerospace pressure vessel, with its original product label and end fitting.

Rampart

6-inch-class Type I platform

Compact all-metal architecture for gas accumulation, buffering, pneumatic and test applications.

Platform

6-inch class

Public aerospace rating

Confirm with engineering

Original black-coated aerospace hardware is shown. Commercial Atlas ratings are not transferred to Rampart.

Discuss Rampart

Keep Type I aluminum pressure vessel showing the textured metallic shell and machined port.

Keep

10.5-inch Type I platform

A mid-diameter aerospace platform for applications needing greater volume while retaining an all-aluminum architecture.

Platform

10.5-inch class

Pressure, volume & ports

Confirm configuration

Discuss Keep

Sentry compact Type I aluminum vessel with a red protective port cap.

Sentry

2.2 L Type I platform

Small-volume pressure storage for compact aerospace gas-storage and pneumatic applications where a composite overwrap is not required.

Volume platform

2.2 L

Construction

All-metal aluminum

Discuss Sentry

Fortress pressure vessel and mounting fixture on a laboratory test table.

Fortress

15-inch Type I platform

A large-diameter platform for higher-volume accumulation, buffering, ground support or program-specific gas storage.

Platform

15-inch class

Specifications

Confirm configuration

Fortress test-fixture reference. Contact Steelhead for configuration details.

Discuss Fortress

Compare the Starting Points.

Use the platform sizes to narrow the conversation. Final pressure, volume, port and qualification details are specific to the aerospace configuration.

Citadel platform overview
PlatformSize referenceProgram starting pointConfiguration review
Rampart6-inch classAccumulation, buffering, pneumatic & test dutiesConfirm aerospace pressure, volume and interfaces
Keep10.5-inch classMid-diameter all-metal gas storageConfirm pressure, volume, ports and qualification
Sentry2.2 LCompact gas storage & pneumaticsConfirm pressure and system interfaces
Fortress15-inch classHigher-volume accumulation & program storageConfirm exact configuration and requirements

Vessel architecture

When Type I Makes Sense

Aluminum construction offers a straightforward pressure-retaining architecture for compatible aerospace applications. Vessel choice should account for the pressure range, thermal behavior, available envelope and inspection or integration requirements.

  • All-metal pressure-retaining architecture
  • Corrosion-resistant aluminum construction
  • Straightforward inspection and integration
  • Compatible lower-pressure accumulation and buffering duties
  • Ports, valves and mounting reviewed around the application
Keep Type I aluminum pressure vessel showing the textured metallic shell and machined port.
Keep aluminum aerospace vessel; original shell texture and port geometry retained.

Start with the requirement

Bring the Pressure, Envelope & Interface Requirements.

Steelhead can help evaluate the appropriate Type I platform and the engineering path for the aerospace configuration.

Talk with an Aerospace Engineer