Piping Class D1A
Piping Class Spec

Ball Valves — Piping Class D1A

The ball valves specification for piping class D1A (ASME Class 150, Sour Service - H₂S Containing Hydrocarbons, NACE MR0175) — body, trim, seat, end connection and rating, ready to quote.

What is the ball valves spec for piping class D1A?

Piping class D1A (ASME Class 150) covers Sour Service - H₂S Containing Hydrocarbons, NACE MR0175 with a Carbon Steel WCB / ASTM A216 with NACE MR0175 hardness control body material and 3mm + NACE hardness limit corrosion allowance, rated for 16 bar (232 psi) at Up to 200°C (392°F). The ball valves specification for this class is below.

TypeRatingBodyTrimSeatEnd Conn.
Ball ValveClass 150A216 WCB (NACE)SS 316 (NACE)PTFE / RPTFERF Flange
  • -Ball Valve: API 6D, fire-safe, antistatic, NACE MR0175

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Other valves in piping class D1A

Ball Valves in other piping classes

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

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