Pressure gauges

Pressure gauges are used to show the actual pressure of water, heating media, steam, compressed air or process fluids and to detect deviations from the operating range in time. Pipeline networks most often use Bourdon-tube indicating gauges, as well as vacuum gauges and compound gauges. For vibration or pressure pulsation, liquid-filled cases are common; for aggressive media, corrosion-resistant designs are used.

Selection is based on the medium, scale range, accuracy class, case diameter, connection position (bottom/radial or back/axial) and thread size. The system’s working pressure should normally fall in the middle third of the scale, not at the ends. Exact specifications depend on the manufacturer, size and version and must be checked against the datasheet of the specific instrument. Steam service often requires a siphon; pulsating flow may need a snubber or a three-way cock for safe isolation.

A correctly selected gauge helps verify real network pressure before choosing valves by PN class, monitor pump and boiler units, and avoid running the system without reliable readings. To buy or order an instrument for your layout, check the price, accessory cost and availability at Pipeline Systems of Ukraine — a consultant will match the range, connection and operating conditions.