Piping Class A1A
Piping Class Spec
Butterfly Valves — Piping Class A1A
The butterfly 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 butterfly 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 butterfly valves specification for this class is below.
| Type | Rating | Body | Trim | Seat | End Conn. |
|---|---|---|---|---|---|
| Butterfly Valve | Class 150 | A216 WCB / Ductile Iron | SS 316 disc | EPDM | Lug/Wafer (ASME B16.5) |
- -Butterfly Valve: Resilient seat, concentric
Vajra Butterfly Valves
Compact and efficient butterfly valves for large-scale flow control and isolation.
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Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
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