Piping Class B1A
Piping Class Spec

Gate Valves — Piping Class B1A

The gate valves specification for piping class B1A (ASME Class 150, Stainless Steel - Chemical, Corrosive, Pharmaceutical Service) — body, trim, seat, end connection and rating, ready to quote.

What is the gate valves spec for piping class B1A?

Piping class B1A (ASME Class 150) covers Stainless Steel - Chemical, Corrosive, Pharmaceutical Service with a Stainless Steel ASTM A351 CF8M (SS 316) body material and Nil (SS service) corrosion allowance, rated for 19.6 bar (285 psi) at Up to 300°C (572°F). The gate valves specification for this class is below.

TypeRatingBodyTrimSeatEnd Conn.
Gate ValveClass 150CF8M (SS 316 cast)SS 316SS 316 HF or PTFERF Flange (ASME B16.5)
  • -Gate Valve: OS&Y, bolted bonnet

Vajra Gate Valves

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

See the full Gate Valves range

Other valves in piping class B1A

Globe Valves — B1ABall Valves — B1AButterfly Valves — B1ADiaphragm Valves — B1ACheck Valves — B1A

Gate Valves in other piping classes

Gate Valves — A1AGate Valves — A2AGate Valves — A3AGate Valves — B2AGate Valves — C1AGate Valves — D1AGate Valves — E1AGate Valves — A4AGate Valves — A5AGate Valves — A6A
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

Connected Engineering

Standards
API 6DASME B16.34
Materials
A351 CF8M (SS316)
Products
Gate Valves
Comparisons
Gate vs Ball Valve

Need gate valves to piping class B1A?

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Relevant Products
Vajra Gate Valves

Engineering references

Piping Class B1AFull valve schedule & specPiping Class Quick ReferenceAll classes comparedVajra Gate ValvesFull range, specs & standards