Piping Class A1A
Piping Class Spec

Gate Valves — Piping Class A1A

The gate valves specification for piping class A1A (ASME Class 150, General Service - Water, Air, Steam up to 16 bar) — body, trim, seat, end connection and rating, ready to quote.

What is the gate valves spec for piping class A1A?

Piping class A1A (ASME Class 150) covers General Service - Water, Air, Steam up to 16 bar with a Carbon Steel ASTM A216 WCB body material and 3mm corrosion allowance, rated for 16 bar (232 psi) at Up to 200°C (392°F). The gate valves specification for this class is below.

TypeRatingBodyTrimSeatEnd Conn.
Gate ValveClass 150A216 WCB13Cr13Cr hard-facedRF Flange (ASME B16.5)
  • -Gate Valve: OS&Y, rising stem, 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 A1A

Globe Valves — A1ACheck Valves — A1ABall Valves — A1AButterfly Valves — A1AStrainers — A1A

Gate Valves in other piping classes

Gate Valves — A2AGate Valves — A3AGate Valves — B1AGate 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
A216 WCB Carbon Steel
Products
Gate Valves
Comparisons
Gate vs Ball Valve

Need gate valves to piping class A1A?

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Relevant Products
Vajra Gate Valves

Engineering references

Piping Class A1AFull valve schedule & specPiping Class Quick ReferenceAll classes comparedVajra Gate ValvesFull range, specs & standards