Piping Class B3A
Piping Class Spec

Gate Valves — Piping Class B3A

The gate valves specification for piping class B3A (ASME Class 600, High-Pressure Stainless - Corrosive Process, Sour Hydrocarbons with SS316 Body) — body, trim, seat, end connection and rating, ready to quote.

What is the gate valves spec for piping class B3A?

Piping class B3A (ASME Class 600) covers High-Pressure Stainless - Corrosive Process, Sour Hydrocarbons with SS316 Body with a Stainless Steel ASTM A351 CF8M (Cast SS316) / A182 F316 Forged body material and 0mm (stainless, no corrosion allowance) corrosion allowance, rated for 99.3 bar (1440 psi) at 38°C (100°F) at -29°C to +540°C (-20°F to +1004°F). The gate valves specification for this class is below.

TypeRatingBodyTrimSeatEnd Conn.
Gate ValveClass 600A351 CF8M (SS316)SS316 (Trim 12)SS316 HFRTJ Flanged (ASME B16.5) or BW (ASME B16.25)
  • -Gate Valve: API 603, OS&Y, flexible wedge; IBR Form III-C if steam

Vajra Gate Valves

Robust gate valves for full-flow isolation and on-off service in various industrial systems.

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Other valves in piping class B3A

Gate Valves in other piping classes

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

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