21868 - ESAB 2-Inch High Pressure Regulator Gauge 4000 PSI 1/8 NPT

Precision High-Pressure Monitoring for Industrial Regulators

The ESAB 21868 High Pressure Gauge is a critical component for maintaining the safety and efficiency of your oxy-fuel or MIG/TIG welding setups. Designed as a direct replacement for damaged or worn-out gauges on industrial gas regulators, this instrument provides accurate readings of cylinder contents up to 4000 PSI. The ability to accurately monitor high-pressure inputs is essential for preventing unexpected gas run-outs during critical welding passes and ensuring that cylinder changeovers are managed effectively.

Constructed with a durable 2-inch dial, this gauge strikes the perfect balance between readability and compactness. The 2-inch footprint ensures it does not protrude excessively from the regulator body, reducing the risk of accidental impact damage—a common occurrence in busy fabrication shops. The face of the gauge features a stark white background with crisp, dark numerals, offering superior contrast. This design consideration is particularly important in welding environments where lighting may be suboptimal or where smoke and fume might obscure visibility. Operators can quickly glance at the regulator and ascertain the remaining gas pressure without squinting or using auxiliary lighting.

The connection is a standard 1/8-inch NPT (National Pipe Taper) thread, which is the industry standard for the gauge ports on the majority of medium- to heavy-duty welding regulators. This universality makes the ESAB 21868 a versatile stock item for maintenance departments, capable of servicing regulators for Oxygen, Argon, Helium, Nitrogen, and CO2 mixtures. The internal mechanism is engineered to handle the rigors of high-pressure gas service, providing stable readings and resisting the mechanical vibrations often transmitted through cylinder carts and manifold systems.

Safety is paramount when dealing with compressed gases. A functioning high-pressure gauge is the first line of defense in identifying system anomalies. By ensuring your regulators are equipped with reliable instrumentation like the ESAB 21868, you maintain compliance with safety standards and protect both personnel and equipment. Whether you are refurbishing an older regulator or replacing a gauge smashed during transport, this ESAB component delivers the reliability and accuracy professional fabricators demand.