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Downhole Drilling Equipment
7. Check Valve
Nominal Bore: From 2-1/16" to 4-1/16",
Working Pressure Range: 2,000 to 15,000 PSI,
Temperature Range: -60°C to +121°C (K, U),
Product Specification Level: PSL3 to 4,
Performance Level: PR1 to 2,
Material Class: AA to FF.
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