NQ CHUCK VALVE BODY FOR INNER TUBE HEAD
NQ Chuck Valve Body for Inner Tube Head
Description:
The NQ Chuck Valve Body is a precision-engineered component designed for use in the inner tube head assembly of NQ wireline core barrel systems. It functions as the main housing for the check (non-return) valve, ensuring one-way fluid flow and preventing backflow during core retrieval operations. Built for durability and accuracy, this valve body plays a crucial role in maintaining fluid control, pressure stability, and the protection of core samples during drilling.
Description
Key Features:
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Suitable for NQ wireline core barrel systems
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Forms the housing for the check valve mechanism (ball, spring, and seat)
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Prevents reverse flow and maintains pressure balance while lifting the inner tube
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Manufactured from high-strength alloy steel for long service life in demanding drilling environments
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Precision-machined for exact fit and reliable sealing performance
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Designed to meet OEM standards for compatibility and performance
Specifications:
| Parameter | Details |
|---|---|
| Product Name | NQ Chuck Valve Body |
| Application | Inner Tube Head – NQ Wireline Core Barrel |
| Function | Controls one-way drilling fluid flow and prevents backflow |
| Material | Alloy Steel, Heat Treated |
| Finish | Precision Machined |
| Approx. Weight | 0.17 kg |
| Compatibility | NQ / NQ2 Inner Tube Head Assemblies |
Applications:
Used in mineral exploration, geotechnical drilling, and wireline core drilling systems to ensure safe, efficient, and contamination-free core recovery by maintaining directional fluid control inside the inner tube head.




