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639422 - ESAB Fuel Gas Test Gauge 0-100 PSI B-Size Fitting

Packaging: pack of 1
$346.21/EA $271.09/pack of 1 only $271.09/EASave 22%

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SKU: ESB639422 Categories: ,

OVERVIEW

Precision Pressure Verification for Industrial Safety

The ESAB 639422 Fuel Gas Test Gauge is a critical maintenance and safety tool designed for industrial environments utilizing oxy-fuel cutting and welding systems. Accurate pressure management is fundamental to the safe operation of fuel gas equipment, and this specialized test gauge provides facility managers and MRO technicians with a reliable means to verify system performance. Calibrated to measure pressures ranging from 0 to 100 PSI, it is ideally suited for the operating ranges of common fuel gases, including Acetylene, Propane, Propylene, and Natural Gas.

Engineered with a standard B-Size (9/16"-18) Left-Hand threaded connection, this gauge integrates seamlessly with existing industrial gas infrastructure. It can be attached directly to regulator outlets to verify gauge accuracy or connected to the end of hose lines to measure pressure drop across the system. This capability is essential for diagnosing flow restrictions, identifying faulty regulators, and ensuring that downstream equipment receives the manufacturer-specified pressure for optimal combustion.

Constructed with durable materials to withstand the rigors of the shop floor, the ESAB 639422 features a clear, high-contrast dial that ensures readability even in low-light conditions. Regular use of a test gauge is a recommended practice in safety compliance protocols, allowing for the early detection of pressure anomalies that could lead to equipment failure or safety hazards. By incorporating this tool into your regular maintenance schedule, you ensure the integrity of your gas distribution system and the consistency of your thermal processing operations.

Technical Specifications

  • Pressure Range: 0-100 PSI
  • Connection: B-Size 9/16"-18 Left-Hand (CGA 023 compatible)
  • Gas Compatibility: All standard fuel gases
  • Application: Line pressure testing, regulator verification
Additional Information
Brand:ESAB
Gas Type:Fuel Gas
Pressure Range:0-100 PSI
Connection Type:B-Size (9/16"-18 LH)
Thread Direction:Left Hand
Gauge Type:Test Gauge
Application:Pressure Verification, Troubleshooting
Packaging Description:pack of 1

INCLUDED

  • 1x 100 PSI Fuel Gas Test Gauge
  • 1x B-Size (9/16"-18 LH) Fitting (Pre-installed)

APPLICATIONS

  • Verifying regulator outlet pressure accuracy
  • Measuring pressure drop at the end of long hose runs
  • Troubleshooting flame instability in oxy-fuel torches
  • HVAC and plumbing system purging/testing
  • Industrial gas system maintenance and auditing

FAQ

This gauge features a B-Size connection, which is 9/16"-18 threads. It is Left-Hand threaded, indicated by the notch on the nut, specifically for fuel gas connections.

No. This gauge is designed for fuel gas service only and has Left-Hand threads. Oxygen equipment uses Right-Hand threads to prevent cross-connection, which is a critical safety feature.

Yes, it is suitable for Acetylene as well as other fuel gases like Propane, Propylene, and Natural Gas. However, always remember that Acetylene should never be used above 15 PSI.

No, this is a test gauge intended for temporary connection to verify pressure or troubleshoot. It is not designed to permanently replace the gauges built into your regulator body.

Green hoses are for Oxygen and use Right-Hand threads. This gauge is for fuel (red hoses) and uses Left-Hand threads. Never force a connection; if it doesn't thread easily, it's the wrong gas line.

Attach the gauge to the end of your hose where the torch usually connects. Open the regulator to your working pressure and read the gauge. Compare this to the regulator gauge to see how much pressure is lost through the hose.

The dial reads up to 100 PSI. This covers the working range for almost all oxy-fuel cutting and heating applications.

Yes, as long as your equipment uses standard B-Size fittings (which most industrial Victor, Harris, Smith, and ESAB equipment does), this gauge will fit perfectly.