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KSB Forged Lift Check Class 4500 Ultra High Pressure

Up to 776 bar (11,250 psi). All materials: A105, F22, F91, F304, F316. Seal-welded cover. NPS ½–2.

All Grades Class 4500Class 4500NPS ½–2

Specifications

ParameterSpecification
SeriesSICCA 4500 PCF
Body MaterialA105/F22/F91/F304/F316
Pressure ClassClass 4500
Size RangeNPS ½–2
Max Temperature816°C (F304/F316)
Max Pressure776 bar (11250 psi)
Design StandardASME B16.34
End ConnectionsSocket Weld, Butt Weld
ConstructionSeal-welded cover, spring-loaded disc
Trim / SealingIntegral ST6 seat
✓ ASME B16.34

Material & Applications

Why All Grades Class 4500: One of the highest rated forged check valves available. Weights 4.6 kg (NPS 1/2) to 19.6 kg (NPS 2).

Typical applications: Extreme HP: chemical injection, HP test manifolds, supercritical boiler drains, hydraulic systems.

Pressure/Temperature Ratings

RatingPressure at Temperature
A105 4500766 bar @ 38°C587 bar @ 316°C426 bar @ 425°C
F91 4500776 bar @ 38°C625 bar @ 316°C376 bar @ 538°C149 bar @ 650°C
F316 4500745 bar @ 38°C467 bar @ 316°C376 bar @ 538°C43 bar @ 816°C

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Other Variants

CS/Alloy 800-4500 SS 800-4500 All Check Valves →

Service Area

Pune, Ahmednagar & Beed.

All Grades Class 4500 Check Valve FAQs

Max pressure?
776 bar (11,250 psi) carbon/alloy at ambient. 745 bar stainless. Among the highest-rated forged check valves from any manufacturer.

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