Low Vacuum Gauges | McMaster-Carr

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17 Products

About Pressure Gauges

Find a gauge with the right connection material and dial type—many with traceable calibration certificates.

3-in-1 Pressure and Vacuum Gauges


	Bottom Connection

These portable gauges have three different dials to display pressure and vacuum measurements on a low, medium, and high scale. Also known as compound gauges, they measure both pressure and vacuum in hydraulic applications.

			Left Gauge									Bottom Connection
	Dial Dia.	Pipe Size	Pressure Range	Vacuum Range	Middle Gauge Pressure Range	Right Gauge Pressure Range	Environment Temp. Range, ° F	Process Temp. Range, ° F	Overall Dia.	For Use With	Accuracy		Each
Steel Case with Steel Connection—Dual Scale (Centimeters of Mercury, Inches of Mercury, Kilograms per Square Centimeter, Pounds per Square Inch)







				NPTF Male

				2"	1/8	0 psi to 150 psi, 0 kg/cm² to 10 kg/cm²	0 in. Hg to 30 in. Hg, 0 cm Hg to 76 cm Hg	0 psi to 5,000 psi; 0 kg/cm² to 350 kg/cm²	0 psi to 600 psi, 0 kg/cm² to 42 kg/cm²	-40 to 120	-40 to 190	6 7/16"	Air, Hydraulic Fluid	±2% Midscale (Grade B)	4054K64	0000000

Ultra-Low Vacuum Gauges

Accommodate applications with very low vacuum with these gauges. Use them with vacuum pumps, packaging equipment, and in suction lines to measure and display vacuum.

Painted Steel Case with Brass Connection—Single Scale (Inches of Water)


Bottom Connection	Bottom Connection

						Available Vacuum Ranges, in. H₂O					Bottom Connection
	Dial Dia.	Pipe Size	Environment Temp. Range, ° F	Process Temp. Range, ° F	Case Color	Vacuum Range	Graduations	Pressure Numeric Increments	For Use With	Accuracy		Each
NPT Male



		2 1/2"	1/4	0 to 140	0 to 175	Black	-100 to 0	2	20	Air	±1.6% Full Scale (Not Rated)	4106K15	000000


		2 1/2"	1/4	0 to 140	0 to 175	Black	-60 to 0	1	10	Air	±1.6% Full Scale (Not Rated)	4106K14	00000
		2 1/2"	1/4	0 to 140	0 to 175	Black	-30 to 0	0.5	5	Air	±1.6% Full Scale (Not Rated)	4106K13	00000
		2 1/2"	1/4	0 to 140	0 to 175	Black	-15 to 0	0.2	3	Air	±1.6% Full Scale (Not Rated)	4106K12	00000


		NPT Male with Calibration Certificate Traceable to NIST



				2 1/2"	1/4	0 to 140	0 to 175	Black	-100 to 0	2	20	Air	±1.6% Full Scale (Not Rated)	3843K34	000000


				2 1/2"	1/4	0 to 140	0 to 175	Black	-60 to 0	1	10	Air	±1.6% Full Scale (Not Rated)	3843K33	000000
				2 1/2"	1/4	0 to 140	0 to 175	Black	-30 to 0	0.5	5	Air	±1.6% Full Scale (Not Rated)	3843K32	000000
				2 1/2"	1/4	0 to 140	0 to 175	Black	-15 to 0	0.2	3	Air	±1.6% Full Scale (Not Rated)	3843K31	000000

304 Stainless Steel Case with Brass Connection—Single Scale (Inches of Water)


Bottom Connection	Bottom Connection

Gauges with a 304 stainless steel case have better corrosion resistance than gauges with a steel case.

					Available Vacuum Ranges, in. H₂O					Bottom Connection
	Dial Dia.	Pipe Size	Environment Temp. Range, ° F	Process Temp. Range, ° F	Vacuum Range	Graduations	Pressure Numeric Increments	For Use With	Accuracy		Each
NPT Male



		4"	1/4	0 to 140	0 to 175	-100 to 0	2	20	Air	±1% Full Scale (Not Rated)	4106K25	0000000


		4"	1/4	0 to 140	0 to 175	-60 to 0	1	10	Air	±1% Full Scale (Not Rated)	4106K24	000000
		4"	1/4	0 to 140	0 to 175	-30 to 0	0.5	5	Air	±1% Full Scale (Not Rated)	4106K23	000000
		4"	1/4	0 to 140	0 to 175	-15 to 0	0.2	3	Air	±1% Full Scale (Not Rated)	4106K22	000000


		NPT Male with Calibration Certificate Traceable to NIST



				4"	1/4	0 to 140	0 to 175	-100 to 0	2	20	Air	±1% Full Scale (Not Rated)	3843K44	000000


				4"	1/4	0 to 140	0 to 175	-60 to 0	1	10	Air	±1% Full Scale (Not Rated)	3843K43	000000
				4"	1/4	0 to 140	0 to 175	-30 to 0	0.5	5	Air	±1% Full Scale (Not Rated)	3843K42	000000
				4"	1/4	0 to 140	0 to 175	-15 to 0	0.2	3	Air	±1% Full Scale (Not Rated)	3843K41	000000