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950731 - ESAB 12.3mm Single Ear Hose Clamp with Insert Ring

Packaging: pack of 5
$9.40/EA $28.15/pack of 5 only $5.63/EASave 40%

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OVERVIEW

Keep Your Gas Lines Leak-Free and Secure

As a welder, you know that a gas leak isn't just an annoyance—it's a quality killer and a safety hazard. If you are hearing a hiss from your regulator connection or noticing porosity in your welds despite good settings, it might be time to check your hose connections. The ESAB 1-Ear Clamp with Insert (12.3mm) is the professional solution for securing your gas lines. Forget about those bulky worm-gear clamps that shred your hose and catch on everything in the shop. These crimp-style ear clamps are designed to be put on once and stay on, giving you peace of mind that your shielding gas is going exactly where it needs to go: the weld pool.

What makes this clamp special is the metal insert ring inside the band. If you've ever crimped a standard clamp too hard and cut your hose, you know the frustration. The insert in this ESAB clamp protects the soft rubber of your MIG or TIG hose, ensuring that when you crimp it down, you get a tight seal without damaging the line. This is especially useful for older hoses that might be a bit softer or for high-quality silicone or rubber lines that need extra care. The 12.3mm size is a common fit for many standard gas hoses found on welding machines and torch leads.

Installation is quick and satisfying. simply slide the clamp over the hose and barb, position it correctly, and use a pair of pincers (end nippers or specialized clamp pliers) to squeeze the ear shut. The clamp tightens uniformly around the hose, creating a seal that won't vibrate loose, no matter how much you drag your leads around the shop floor. It's a small part that makes a big difference in the reliability of your rig. Whether you are fixing a splice, replacing a fitting, or building a custom gas purge setup, keep a handful of these ESAB clamps in your toolbox to ensure your equipment is always ready to arc.

Why Welders Prefer Ear Clamps:

  • No Snags: The smooth, small profile doesn't catch on edges or other cables like screw clamps do.
  • Permanent Fix: Once it's crimped, it's done. No need to constantly retighten it with a screwdriver.
  • Professional Look: Gives your equipment repairs a clean, factory-finished appearance.
  • Gas Savings: Eliminates those tiny leaks that drain your tank over the weekend.
Additional Information
Brand:ESAB
Product Type:Hose Clamp
Clamp Style:1-Ear with Insert
Size:12.3 mm
Material:Steel
Application:Gas Hose Repair, Welding Hose Connection
Installation Method:Crimp / Pincer
Packaging Description:pack of 5

INCLUDED

  • 1 x 1-Ear Clamp with Insert (12.3mm)

APPLICATIONS

  • Securing shielding gas hoses for MIG and TIG welders
  • Repairing oxy-fuel twin hoses
  • Attaching hoses to regulators and flowmeters
  • Custom gas manifold construction
  • Water cooler line connections for TIG torches

FAQ

You need a pair of pincers or ear clamp pliers. Slide the clamp over the hose and fitting, then squeeze the 'ear' (the raised U-shaped section) firmly until it is compressed. This tightens the band around the hose.

The insert ring bridges the gap under the ear of the clamp. It ensures a full 360-degree seal and prevents the metal band from pinching or cutting into soft hose materials during compression.

No, ear clamps are designed for single use. To remove them, you typically have to cut the ear or pry the band apart, which destroys the clamp. You will need a new one for re-installation.

It is designed for hoses with an outer diameter (OD) close to 12.3mm. It is important to measure the OD of your hose while it is pushed onto the fitting to ensure the correct fit.

These clamps are generally suitable for low-to-medium pressure applications typical of welding gas and water lines. For extremely high-pressure hydraulic applications, different clamping methods are usually recommended.

While you might manage with standard dull end-nippers, it is highly recommended to use proper ear clamp pincers. They ensure the ear is crimped squarely and fully without damaging the top of the ear.

Most ESAB clamps are made from zinc-plated or stainless steel to resist corrosion, making them suitable for typical shop environments.

Ear clamps provide a more uniform seal, are less likely to loosen from vibration, have a lower profile that doesn't snag, and are tamper-evident.