API Thread Gauges for Oil Country Tubular Goods (OCTG)

Product Description

Ensure Downhole Integrity with Certified, Precision-Ground Gauges

In the high-pressure environment of oil and gas exploration and production, the integrity of every threaded connection is critical. A single out-of-spec thread on a drill pipe, casing, or tube can lead to catastrophic downhole failures, resulting in costly downtime, lost equipment, and significant safety risks.

Yile Machinery is a manufacturer of high-precision API-compliant thread gauges. Our ring and plug gauges are the certified standard used by manufacturers and inspection teams to ensure that every thread is machined to the exact specifications required for safe and reliable performance.

Key Features & Benefits:

  • Full API Compliance: Our gauges are manufactured in strict accordance with API Specifications 5B and 7-2. This guarantees that any connection you inspect will be fully interchangeable and meet global industry standards.

  • Unmatched Accuracy: Precision ground from high-hardness, stabilized tool steel, our gauges provide the ultimate in dimensional accuracy and stability. The working surfaces are lapped to a fine finish for maximum sensitivity.

  • Long-Lasting Durability: Made from premium tool steel and properly heat-treated, our gauges are highly resistant to wear, ensuring a long service life and reliable measurements over thousands of inspection cycles.

  • Traceable Calibration: Every gauge is delivered with a calibration certificate traceable to a national metrology institute, providing the auditable documentation your quality system requires.

The Standard for Thread Inspection

Our gauges are used to qualify the critical elements of a tapered thread, ensuring a perfect, high-pressure seal and strong mechanical joint.

We supply a full range of gauges for common API threads, including:

  • Casing (LTC, STC, BTC)

  • Tubing (EUE, NUE)

  • Drill Pipe Rotary Shouldered Connections (REG, IF, FH, NC)

Each set includes both a Ring Gauge (to inspect the male pin thread) and a Plug Gauge (to inspect the female box thread), allowing for a complete functional inspection of the connection.

Don't compromise on safety. Verify your threads with gauges you can trust.


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