4-1/16" 10M 1/2" Tapped API 6A Blind Flange – Oil & Gas Flowline Fitting

The 4-1/16" 10M Tapped Blind Flange is a highly versatile isolation component engineered to securely terminate high-pressure flowlines while simultaneously providing a dedicated access port for pressure monitoring, venting, or fluid injection. Rated for a severe cold working pressure of 10,000 PSI (10M), this specialized flange blanks off open 4-1/16" connections while the integrated 1/2-inch threaded tap enables operators to safely install pressure gauges, needle valves, or bleed-off lines without compromising structural integrity.

Manufactured from premium high-strength forged alloy steel in strict accordance with API 6A standards, this tapped blind flange is built to withstand the extreme internal stresses of demanding upstream oil and gas environments. Its robust face provides maximum pressure containment against abrasive fluids and hydrocarbons, while the precision-machined center tap ensures a leak-free, vibration-resistant connection for essential instrumentation or hydrostatic test pumps.

Whether utilized for monitoring wellhead pressure, safely bleeding off a heavy-duty choke and kill manifold, or conducting system pressure tests, the 4-1/16" 10M 1/2" Tapped Blind Flange delivers a dependable, field-proven solution for combined flow termination and system diagnostics.

Features & Benefits

• Integrated 1/2" Tap: Features a precision-machined 1/2-inch threaded port (typically NPT or LP) for direct installation of pressure gauges, test lines, or bleed valves.

• 10,000 PSI Rating (10M): Engineered to safely contain extreme high-pressure upstream environments during operations and testing.

• API 6A Compliant: Manufactured to recognized industry standards to ensure universal compatibility and rigorous operational safety.

• Forged Alloy Steel Construction: Provides exceptional durability and resistance against high-pressure stresses, heavy vibrations, and harsh weather conditions.

• Dual-Purpose Utility: Essential for securely blanking off manifold ports or capping wellheads while maintaining active pressure monitoring capabilities.

• Dependable Sealing Face: Precision-machined ring groove ensures a perfect, leak-free seal with standard API ring joint gaskets.

Specifications & Technical Details

Applications

This 10M tapped blind flange is essential for extreme high-pressure upstream operations requiring both reliable flowline termination and diagnostic access. Typical applications include capping wellhead assemblies with gauge attachments, blanking off and monitoring pressure on choke and kill manifolds, installing bleed-off valves during maintenance, and serving as a secure port for high-capacity hydrostatic pressure testing.

Quality Assurance

Each tapped blind flange undergoes strict quality control protocols, including dimensional verification, precision thread and ring groove inspection, and material traceability (MTRs), ensuring full compliance with API 6A and API Q1 standards for safe, reliable high-pressure field performance.

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