Temperature Pressure Gauges

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17 Products

About Pipe Size

About Flowmeters and Totalizers

Flowmeters measure the rate of flow for a liquid or a gas. Totalizers measure the cumulative flow volume. Flowmeter/totalizers display both the flow rate and the cumulative flow volume.

About Pressure Gauges

Bottom Connection

Center Back Connection

Designed for use with boilers, these gauges have a dual scale that displays pressure in psi and feet of H₂O and displays temperature in °F/°C.

Painted Steel Case with Brass Connection—Dual Scale (psi/ft. of H₂O, Fahrenheit/Celsius)

For Use With: Steam and Water
Accuracy: ±2.5% Full Scale (Grade B)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	ft. of H₂O	psi	ft. of H₂O	psi	ft. of H₂O
2 1/2" Dial Dia.
0 to 75	0 to 170	5	10	20	50
3 1/4" Dial Dia.
0 to 100	0 to 230	2	10	20	50
0 to 200	0 to 460	5	20	40	100

		Display Temp. Range
Dial Diameter	Pipe Size	°F	°C	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Mounting Orientation	Stem Lg.	Shoulder Lg.		Each
Bottom Connection
NPT Male
3 1/4"	1/2	70° to 320°	20° to 160°	-40° to 140°	70° to 320°	Black	Any	2"	__	0000000	000000
Center Back Connection
NPT Male
2 1/2"	1/4	70° to 320°	20° to 160°	-40° to 140°	70° to 320°	Black	Any	1"	__	0000000	00000
2 1/2"	1/4	70° to 320°	20° to 160°	-40° to 140°	70° to 320°	Black	Any	1"	2"	0000000	00000
2 1/2"	1/4	70° to 320°	20° to 160°	-40° to 140°	70° to 320°	Black	Any	1 1/2"	2"	0000000	00000
3 1/4"	1/2	70° to 320°	20° to 160°	-40° to 140°	70° to 320°	Black	Any	2"	__	0000000	00000

Refrigeration Pressure and Vacuum Gauges

Bottom Connection

Often used with chillers and in refrigeration systems, these gauges display the temperature of ammonia relative to the pressure measurement. Also known as compound gauges, these measure both pressure and vacuum.

For technical drawings and 3-D models, click on a part number.

304 Stainless Steel Case with 316 Stainless Steel Connection—Dual Scale (psi/in. of Hg, Fahrenheit)

For Use With: Air, Ammonia, and Refrigerant
Accuracy: ±1.6% Full Scale (Grade B)

Available Pressure and Vacuum Ranges
		Graduation Marks		Numeric Increments
Pressure Range, psi	Vacuum Range, in. of Hg	psi	in. of Hg	psi	in. of Hg	Display Temp. Range, °F
0 to 150	30 to 0	5	5	20	30	-60° to 84°
0 to 300	30 to 0	5	5	25	30	-60° to 125°

				Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F		Each
NPT Male
2 1/2"	1/4	-40° to 200°	-40° to 250°	0000000	000000
4"	1/4	-40° to 200°	-40° to 250°	0000000	000000

Flow, Pressure, and Temperature Transmitters for Gases

Measure and transmit flow rate, pressure, and temperature of industrial gases, such as air, argon, CO2, and nitrogen, flowing through your system. These transmitters are ideal for applications where temperature and pressure can fluctuate. To calculate flow rate, they generate a small amount of heat, then measure the cooling effect your gas has on it. Also known as transducers, these transmitters convert measurements to an electrical signal that can be interpreted by receiving devices, such as remote displays and programmable logic controllers (PLCs). As flow, temperature, and pressure increases, the output signal increases. For your receiving device to interpret the signal, you will need to calibrate it for the measurement range and output signal of the transmitter. They only give accurate readings within the rated measurement range. Mount them directly inline with your system. They measure correctly no matter their mounting orientation.

A digital display makes it easy to read measurements and adjust settings based on your gas. These transmitters have two configurable outputs, and each output can only be wired for one measurement (flow rate, pressure, or temperature). Outputs configured as digital pulse send flow data using spikes of voltage that match the input voltage of the transmitter. One of the outputs can be wired for IO-Link, so you can change settings and receive error messages remotely from your PLC or computer. You’ll need an IO Link controller (not included) to connect to your interface.

These transmitters are calibrated with air but still measure accurately when used with other gases.