Piping Class A4A
Piping Class Spec
Globe Valves — Piping Class A4A
The globe valves specification for piping class A4A (ASME Class 900, Very High Pressure - HP Gas Injection, HP Wellhead, Sour Gas to 148 bar) — body, trim, seat, end connection and rating, ready to quote.
What is the globe valves spec for piping class A4A?
Piping class A4A (ASME Class 900) covers Very High Pressure - HP Gas Injection, HP Wellhead, Sour Gas to 148 bar with a Carbon Steel ASTM A216 WCB / A105N Forged body material and 3mm corrosion allowance, rated for 148 bar (2149 psi) at Up to 400°C (752°F). The globe valves specification for this class is below.
| Type | Rating | Body | Trim | Seat | End Conn. |
|---|---|---|---|---|---|
| Globe Valve | Class 900 | A216 WCB | Stellite-6 HF | Stellite-6 HF | RTJ Flange |
- -Globe Valve: Y-pattern preferred; pressure-seal bonnet
Vajra Globe Valves
Precision globe valves for throttling, flow regulation, and frequent operation.
See the full Globe Valves rangeOther valves in piping class A4A
Globe Valves in other piping classes
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
Connected Engineering
Need globe valves to piping class A4A?
Send your valve schedule — we supply all globe valves to A4A specification (body, trim, seat, rating) with full certification and a 24-hour quote.
Relevant Products