Description
A Carbon Steel Safety Valve is a mechanical device designed to automatically release pressure from a vessel, pipeline, or equipment when the internal pressure exceeds a preset limit. It ensures protection of equipment and personnel by preventing over-pressure conditions in steam, gas, liquid, or air systems.
Construction & Materials
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Body / Bonnet: Carbon Steel (ASTM A216 WCB)
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Trim (Disc/Seat/Stem): Stainless Steel / Hardened Steel / Stellite (depending on service)
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Spring Material: Alloy Steel / Stainless Steel
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Gasket / Seal: Graphite / PTFE / Spiral Wound (as required)
Design Standards
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ASME Section I / VIII / API 526 / API 527
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ASME B16.34 (valve dimensions & rating conformity)
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ANSI / BS / ISO compliant versions available
Key Features
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Set Pressure Range: Custom-set per system design (factory pre-set as required)
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Pressure Class: Typically Class 150 to Class 2500 (industry dependent)
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Outlet Connection: Flanged (ASME B16.5) / Screwed / Nozzle
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Lift Type Options:
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Full Lift (fast opening, higher capacity)
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Partial Lift (smoother performance for some services)
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Operation: Spring-loaded with lever / weight / pilot-assisted designs
Performance & Capabilities
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Rapid response to over-pressure
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Accurate set pressure and reseating
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Low leakage & reliable reseal
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Suitable for repeated duty
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Handles steam, gas, and liquid applications
Typical Applications
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Steam Boilers & Steam Lines
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Pressure Vessels & Heat Exchangers
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Compressors & Air Receivers
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Chemical & Petrochemical Plants
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Refineries & Power Stations
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Process & Utility Piping
Why Use a CS Safety Valve?
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Protects equipment integrity by preventing over-pressure failure
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Offers fast acting safety response
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Built for high temperature and high pressure environments
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Carbon steel gives excellent mechanical strength and durability
