Piping Class D2A
Piping Class Spec

Ball Valves — Piping Class D2A

The ball valves specification for piping class D2A (ASME Class 600, Sour / H₂S Service - NACE MR0175 Compliant Carbon Steel, Class 600) — body, trim, seat, end connection and rating, ready to quote.

What is the ball valves spec for piping class D2A?

Piping class D2A (ASME Class 600) covers Sour / H₂S Service - NACE MR0175 Compliant Carbon Steel, Class 600 with a Carbon Steel ASTM A352 LCC (Low Temperature CS) with NACE MR0175/ISO 15156 Compliance body material and 3mm corrosion allowance, rated for 99.3 bar (1440 psi) at 38°C (100°F) at -46°C to +425°C (-51°F to +797°F). The ball valves specification for this class is below.

TypeRatingBodyTrimSeatEnd Conn.
Ball ValveClass 600A352 LCC Forged / A182 F60 Duplex if Cl- presentSS316 + ENP, NACE compliantNACE PEEK / Metal seatRTJ Flanged or BW
  • -Ball Valve: API 6D, DBB; NACE MR0175 body + trim; hardness certificate

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

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