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Can pneumatic actuator ball valves operate in high-pressure steam applications

2025-06-16

High-Pressure Steam Ball Valve Guide

Technical specifications for extreme conditions

ASME B16.34 540°C 420 bar

Metal-seated designs (Inconel/Stellite) required for temperatures above 260°C

10 bar SS Diaphragm

Spring-return models with double-acting cylinders needed to overcome steam pressure

API 607 Graphite Seals

Blowout-proof stems and pressure relief vents prevent catastrophic failure

Steam Tracing Expansion Loops

Jacketing maintains temperature to prevent condensate buildup

Power Plants Refineries

Hydrostatic testing at 1.5x design pressure (API 598) mandatory for reliability

Non-compliant designs (plastic components/PTFE seats) risk failure in steam service

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