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KSB Swing Check Valve Alloy Steel WC6 Class 150/300/600

A217 WC6 for high-temperature backflow prevention up to 593°C. BS 1868, IBR.

Alloy Steel WC6Class 150, 300, 600NPS 2–24IBR

Specifications

ParameterSpecification
SeriesSICCA 150-600 SCC
Body MaterialA217 WC6
Pressure ClassClass 150, 300, 600
Size RangeNPS 2–24
Max Temperature593°C
Max Pressure103 bar
Design StandardBS 1868
End ConnectionsFlanged, Butt Weld
ConstructionBolted cover
Trim / SealingStellite
✓ IBR✓ BS 1868

Material & Applications

Why Alloy Steel WC6: WC6 extends check valve service to 593°C. Standard upgrade from WCB.

Typical applications: High-temp steam systems, power plant feedwater, boiler recirculation.

Pressure/Temperature Ratings

RatingPressure at Temperature
Cl 600103 bar @ 38°C83 bar @ 316°C70 bar @ 427°C13 bar @ 593°C

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Other Variants

CS WCB PS Alloy 900+ All Check Valves →

Service Area

Pune, Ahmednagar & Beed.

Alloy Steel WC6 Check Valve FAQs

When WC6 check instead of WCB?
When pump discharge temperature exceeds 425°C. Common on BFP discharge in power plants.

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