Swagelok EN837-3 Pressure Gauge 1/4in NPT Port

Swagelok EN837-3 Pressure Gauge with a 1/4 in NPT end connection is designed for low-pressure vacuum readings in industrial and process lines, covering a -60 to 0 inH2O range. This EN837-3 instrument is part of Swagelok’s PGI Series and provides EN 837-3 Class 1.6 accuracy, suitable for applications where precise negative-pressure monitoring is required. The end connection is 1/4 in NPT, male, intended to thread into a matching female NPT gauge port on the system. Common uses include vacuum monitoring in gas sampling lines, laboratory test rigs, HVAC testing, and instrumentation panels that require a compact, low-range vacuum gauge. The device adheres to the EN 837-3 standard, offering a calibrated readout for negative pressures in equipment and process environments.