Piping Class C1A
Piping Class Spec

Globe Valves — Piping Class C1A

The globe valves specification for piping class C1A (ASME Class 150, Alloy Steel - High Temperature Steam and HP Service) — body, trim, seat, end connection and rating, ready to quote.

What is the globe valves spec for piping class C1A?

Piping class C1A (ASME Class 150) covers Alloy Steel - High Temperature Steam and HP Service with a 1¼Cr-½Mo (ASTM A217 WC6) or 2¼Cr-1Mo (A217 WC9) body material and 3mm corrosion allowance, rated for 19.6 bar (285 psi) at ambient; derated per P-T tables above 400°C at Up to 565°C (1050°F). The globe valves specification for this class is below.

TypeRatingBodyTrimSeatEnd Conn.
Globe ValveClass 300–600A217 WC6 / WC9Stellite-6Stellite-6 HFRF or BW
  • -Globe Valve: Y-pattern for HP steam throttling

Vajra Globe Valves

Precision globe valves for throttling, flow regulation, and frequent operation.

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Other valves in piping class C1A

Globe Valves in other piping classes

Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

Connected Engineering

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