Piping Class A6A
Piping Class Spec

Needle Valves — Piping Class A6A

The needle valves specification for piping class A6A (ASME Class 2500, Extreme High Pressure - Ultra-HP Wellhead, HP Instrument & Test Systems to 412 bar) — body, trim, seat, end connection and rating, ready to quote.

What is the needle valves spec for piping class A6A?

Piping class A6A (ASME Class 2500) covers Extreme High Pressure - Ultra-HP Wellhead, HP Instrument & Test Systems to 412 bar with a Carbon Steel ASTM A216 WCB / A182 F22 Forged (2¼Cr-1Mo) body material and 3mm corrosion allowance, rated for 412 bar (5975 psi) at Up to 400°C (752°F). The needle valves specification for this class is below.

TypeRatingBodyTrimSeatEnd Conn.
Needle ValveClass 2500A182 F22 / F316L ForgedSS 316 / Alloy 625SS 316 hardenedNPT/SW forged
  • -Needle Valve: HP instrument root valve; HP block & bleed manifold

Vajra Needle Valves

Precision needle valves for accurate flow control in instrumentation and sampling systems.

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Other valves in piping class A6A

Needle Valves in other piping classes

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

Connected Engineering

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