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999434 - ESAB 2.5-inch Replacement Regulator Gauge 0-100 PSI LBM

Packaging: pack of 1
$60.01/EA $39.22/pack of 1 only $39.22/EASave 35%

Usually ships within 3-5 business days

OVERVIEW

Get Your Regulator Back in Action

A broken gauge on your regulator isn't just an annoyance; it's a safety hazard and a quality control issue. If you can't read your pressure, you can't weld consistently. The ESAB 999434 Replacement Gauge is the fix you need to get your rig back up and running. With a 0-100 PSI range, this gauge is perfect for monitoring your delivery pressure, ensuring you are pushing the right amount of gas to your puddle every time.

We know that shop tools take a beating. That's why this gauge is built with a tough plastic case that can handle the knocks and scrapes of daily use without denting like metal cases might. The 2.5-inch face is a nice upgrade if you're squinting at smaller dials—the numbers are big, clear, and easy to read even when your helmet is flipped up and the lighting isn't perfect. The "Red" designation likely indicates high-visibility markings or specific application coding to keep you aware of your settings at a glance.

Swapping it out is easy. It features a standard Lower Back Mount connection that screws right into the port of most compatible regulators. Don't guess your flow rates or risk blowing a hose because of a faulty indicator. Pop this ESAB gauge on, check your connections, and get back to laying beads with confidence. It's a small part that makes a big difference in how your day goes.

Key Features

  • Easy to Read: Large 2.5" face helps you check pressure instantly.
  • Standard Fit: Lower Back Mount fits common regulator bodies.
  • Durable: Plastic housing resists shop grime and corrosion.
  • Accurate: 0-100 PSI range for precise delivery settings.
Additional Information
Diameter:2.5"
Pressure Range:0-100 PSI
Mount Type:Lower Back Mount
Case Material:Plastic
Display Type:Analog
Scale:PSI
Application:Gas Regulator Replacement
Packaging Description:pack of 1

INCLUDED

  • 1 x 2.5-inch Pressure Gauge (0-100 PSI)

APPLICATIONS

  • Replacement of broken delivery gauges on welding regulators
  • Monitoring output pressure for MIG/TIG welding gases
  • General industrial pressure monitoring applications (0-100 PSI)
  • Maintenance and repair of gas distribution manifolds

FAQ

While the specific thread pitch isn't listed in the short description, 2.5-inch gauges typically use a 1/4" NPT connection. However, some may use 1/8" NPT. Please verify your regulator's port size before ordering.

Gauges must be specifically cleaned for oxygen service to prevent combustion. Unless the product packaging explicitly states 'Cleaned for Oxygen Service', treat it as a general-purpose or inert gas gauge.

LBM stands for Lower Back Mount. This means the threaded connection stem comes out of the back of the gauge, near the bottom edge, rather than the center or the bottom of the circle.

Yes, as long as the pressure does not exceed 100 PSI and the wetted parts (brass/copper alloy usually) are compatible with the water source. However, it is primarily designed for gas regulators.

Ensure the system is depressurized. Remove the old gauge using a wrench on the brass stem (never twist the case). Apply Teflon tape or paste to the threads of the new gauge (ensure none enters the opening) and tighten it into the port until snug and oriented correctly.

Plastic cases (PLA) are lightweight, resist corrosion from humidity or chemicals, and are often more impact-resistant to minor bumps than thin metal cases which can dent and bind the needle.

It often refers to the color of the dial markings or a 'Red Line' danger zone on the scale. In some contexts, it might refer to the specific product series or compatibility with fuel gases, though 100 PSI is a delivery range.

No, based on the description 'PLA' and standard regulator gauge specs, this is a dry gauge. Liquid-filled gauges are typically used for high-vibration environments like hydraulic pumps.