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ESAB 2.5-Inch Replacement Regulator Gauge - 0-30 PSI Acetylene

$63.05/EA

Usually ships within 3-5 business days

OVERVIEW

ESAB 999437: 2.5-Inch Low Pressure Regulator Gauge

The ESAB 999437 is a specialized replacement pressure gauge designed for industrial welding regulators. Engineered for accuracy and durability, this gauge features a 2.50-inch dial face, providing excellent readability for operators monitoring gas delivery pressures. The unit is calibrated for a range of 0-30 PSI, making it specifically suitable for the low-pressure (delivery) side of fuel gas regulators, particularly Acetylene, where precise low-pressure control is critical for process safety and flame stability.

This model utilizes a Lower Back Mount (LBM) connection configuration. Unlike standard bottom-mount gauges, the LBM design is intended for regulators where the gauge port is oriented to accept a rear-entry thread, or for panel-mounted applications. The "PLA" designation indicates a robust plastic case, which offers resilience against shop environments and resistance to environmental corrosion compared to standard steel cases. The gauge face typically includes a red zone indicator to visually warn operators of pressures exceeding standard safety limits for fuel gases.

Maintaining accurate instrumentation is essential for compliance with safety standards and ensuring optimal equipment performance. The ESAB 999437 serves as an OEM-quality replacement component, ensuring that your gas regulation equipment continues to operate within specified parameters. It is compatible with various ESAB, Victor, and other major brand regulators requiring a 2.5-inch, back-mount, low-pressure gauge.

Technical Specifications

  • SKU: 999437
  • Pressure Range: 0 - 30 PSI
  • Dial Diameter: 2.50 Inches
  • Mounting: Lower Back Mount (LBM)
  • Housing Material: Plastic
  • Application: Fuel Gas Delivery Pressure
Additional Information
Diameter:2.5"
Max Psi:30
Used On A:Regulator
Used On Which Gas:Acetylene
Mount Type:Lower Back Mount (LBM)
Case Material:Plastic
Dial Range:0-30 PSI
Application:Low Pressure Delivery
Packaging Description:pack of 1

INCLUDED

  • 1x 2.5-Inch 30 PSI Pressure Gauge

APPLICATIONS

  • Replacement of damaged low-pressure gauges on welding regulators.
  • Monitoring delivery pressure for Acetylene and other fuel gases.
  • Refurbishing industrial gas regulation equipment.
  • Panel mount gas distribution systems requiring back-mount gauges.

FAQ

This gauge reads up to 30 PSI.

A 0-30 PSI gauge is typically used for the delivery (low pressure) side of Acetylene or other fuel gas regulators.

LBM stands for Lower Back Mount, referring to the position of the threaded connection on the back of the gauge.

The 'PLA' in the description indicates this gauge has a plastic case.

The gauge has a 2.50-inch diameter dial.

Generally, no. Oxygen delivery pressures often exceed 30 PSI (typically up to 100 PSI or more), and oxygen service requires specific cleaning standards. This range is best for fuel gas.

It will fit regulators that accept a 2.5-inch gauge with a Lower Back Mount connection. Always check your regulator's port orientation and thread size before ordering.

On Acetylene gauges, the red area usually starts above 15 PSI to indicate that the pressure is entering an unstable/unsafe range for Acetylene gas.
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