What are the different types of water pressure gauge?

13th August 2021

What are the different types of water pressure gauge?


	Shop for Water Pressure Gauges


		There are many different makes and models of water pressure gauge. Many of these gauges can be used not only for measuring water pressure, but for measuring the pressure of gas and oil as well. Always read the manufacturer’s specifications before use.

		Different types of dial
		Bar only dials The dial of a water pressure gauge may have a scale that reads only in bars. The UK uses mainly bar readings for water pressure.

		PSI only dials The dial may have a scale that reads only in PSI (Pounds per Square Inch). The USA uses mainly PSI readings for water pressure.

		Bar and PSI dials Many dials offer the best of both worlds and have bar and PSI scales. It is useful to have a gauge with both scales on because some appliance manufacturers may state recommended guidelines for use in PSI or bar and it will save you having to convert the measurements.

		“Lazy hand” needle dials Dials with a lazy hand needle are useful if you you want to check your system overnight or over a longer period. The lazy hand moves with the needle but remains at the highest point at which the pressure peaked. If you are worried that your water pressure is spiking in the night, attach one of these and you can see how high it goes without having stand over the pressure gauge all night.

		Digital dials Many pressure gauges are available with digital displays for easy reading.

		Liquid-filled dials The two main causes of pressure gauges failing are pipe vibrations and water condensation which, in cold climates, can freeze and cause damage to the gauge’s mechanisms. Liquid-filled dials have a longer working life because they are filled with a viscous substance that reduces needle vibrations and leaves no room for humid or ambient air to enter and cause condensation.

		Duplex dials Duplex dials have two scales which provide the user with dual readings. This particular gauge has one scale for pressure and and a separate scale for temperature.

		Different types of connection
		Back mounted connection The brass connection of a water pressure gauge may be mounted at the back of the dial.

		Bottom mounted connection More commonly the brass connection fitting is mounted at the bottom of the water pressure gauge’s dial. Both connections function in the same way but they may allow you attach the pressure gauge to a fitting in a confined space where the other may not fit.