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Hydra-Core 6" – 12" Pipe Wall Sampling Kit

The Hydra-Core Pipe Wall Sampling Kit allows a small core sample to be taken from the host pipe prior to completing the final valve insertion line tap. Why is this important?

Fact 1: The inner diameter of a pipe cannot be determined by simply looking at the pipe.

Fact 2: The inner diameter of the same type and nominal size of pipe can vary from manufacturer to manufacturer and from production run to production run.

The puzzling question of “What’s the inner pipe diameter?” often results in an unsettling silence. Inconsistencies found in the inner diameter of some types of pipe — due to manufacturing variances, date of manufacture, material used and more — reveal the importance of knowing not just the outer diameter but also the inner diameter of the pipe where you are planning to install an Insta-Valve 250 Patriot insertion valve.

Knowing the inner diameter of the host pipe permits precision fitting of both the cutter and the Insta-Valve 250 Patriot valve cartridge to be used. Having this information on hand allows for the best possible Insta-Valve 250 Patriot insertion valve shutdown.

At this point, you may be asking, “How can I take a core sample and still proceed with an IV 250 Patriot installation?”

How It Works

Eliminate the guesswork when it comes to inner diameter. The Hydra-Core sampling process consists of a few simple steps, and takes just a few minutes:

  1. Set up the Hydra-Tapper machine with the Hydra-Core sampling cutter.
  2. Make the core sample tap.
  3. Utilizing a simple formula, determine the pipe’s inner diameter, cutter size and cartridge size.
  4. Tap using the core sampling centering tool.
  5. Proceed with valve installation.

Hydra-Core Pipe Wall Sampling Kit Features

  • Centering tool
  • Centering ring
  • Sampling and tapping cutters
  • Attachment hardware

Hydra-Core Pipe Wall Sampling Kit Benefits

  • Allows for accurate pipe inner diameter determination
  • Provides data necessary to determine the best cutter and cartridge combination for your application
  • Saves job site time, which saves job site money


  • How do I order a Hydra-Core?

    Call the Hydra-Stop inside sales team at 800-538-7867 to purchase the Base Coring Kit. Then, purchase cutters and saw mandrels.

  • Do I need to purchase ALL of the cutters?

    If you own a Hydra-Stop Side Tap Kit, you already have some undersized cutters. Simply order the cutters that are not in your kit and you will then have the complete set.

  • Will my saw mandrel work with the Hydra-Core?

    No. Regular saw mandrels included with your Insta-Valve Kit will not work with the Hydra-Core tool set. Contact our inside sales team for additional information.

Need More Information?

Request complete details about the Hydra-Core Pipe Wall Sampling Kit and learn how it can assist you in fine-tuning your insertion valve installations. Call Hydra-Stop inside sales or your regional manager today at 800-538-7867, or follow the link below to fill out our contact form.

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