Liquid-Filled Vacuum Gauges

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304 Stainless Steel

ABS

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NPT

Maximum Vacuum, in. Hg

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Accuracy Scale

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Export Control Classification Number (ECCN)

EAR99

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149 Products

About Pressure Gauges

Dual Scale With Bottom Connection

Dual Scale With Center Back Connection

Dual Scale With Center
Back Connection
(Panel Mount)

Dual Scale With Lower Back Connection

Single Scale With Bottom Connection

Single Scale With Center Back Connection

Single Scale With Center
Back Connection
(Panel Mount)

Bottom Connection

Center Back Connection

Center Back Connection (Panel Mount)

Lower Back Connection

Designed for harsh environments prone to vibration, these gauges pair a corrosion-resistant 304 stainless steel case with a glycerin-filled dial that reduces needle flutter. Also known as compound gauges, they measure both pressure and vacuum. Use them with pumps, filters, regulators, compressors, and in suction and process lines.

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

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

For Use With: Air and Water
Accuracy: ±1% Mid Scale (Grade A); except
4" Dial Dia.: ±1% Full Scale (Grade 1A)

Available Pressure Ranges
Pressure Range		Vacuum Range		Graduation Marks			Numeric Increments
psi	kPa	in. of Hg	kPa	psi	in. of Hg	kPa	psi	in. of Hg	kPa
1 1/2" Dial Diameter
0 to 15	0 to 100	30 to 0	0 to -100	0.5	1	5	5	10	50
0 to 15	0 to 100	30 to 0	0 to -100	1	1	5	5	10	50
0 to 30	0 to 200	30 to 0	0 to -100	1	2	5	10	10	50
0 to 30	0 to 200	30 to 0	0 to -100	1	1	5	10	10	50
0 to 60	0 to 400	30 to 0	0 to -100	2	2	10	20	30	100
0 to 60	0 to 400	30 to 0	0 to -100	1	2	10	10	10	100
0 to 100	0 to 700	30 to 0	0 to -100	2	6	10	20	30	100
0 to 100	0 to 700	30 to 0	0 to -100	2	5	20	20	30	100
0 to 150	0 to 1,000	30 to 0	0 to -100	2	7.5	20	30	30	200
0 to 150	0 to 1,000	30 to 0	0 to -100	2	5	20	20	30	200
0 to 300	0 to 2,000	30 to 0	0 to -100	5	15	50	50	30	500
2 1/2" Dial Diameter
0 to 15	0 to 100	30 to 0	0 to -100	0.5	1	5	5	10	50
0 to 30	0 to 200	30 to 0	0 to -100	1	2	5	10	10	50
0 to 60	0 to 400	30 to 0	0 to -100	2	2	10	20	30	100
0 to 100	0 to 680	30 to 0	0 to -100	2	5	10	20	30	200
0 to 160	0 to 1,100	30 to 0	0 to -100	5	10	20	40	30	200
0 to 200	0 to 1,350	30 to 0	0 to -100	5	10	50	50	30	200
0 to 300	0 to 2,050	30 to 0	0 to -100	5	10	50	50	30	500
4" Dial Diameter
0 to 15	0 to 100	30 to 0	0 to -100	0.5	1	2	3	5	20
0 to 30	0 to 205	30 to 0	0 to -100	0.5	1	5	5	10	50
0 to 60	0 to 410	30 to 0	0 to -100	2	2	10	10	10	100
0 to 100	0 to 680	30 to 0	0 to -100	2	5	10	10	30	100
0 to 160	0 to 1,100	30 to 0	0 to -100	5	5	20	20	30	100
0 to 200	0 to 1,360	30 to 0	0 to -100	5	5	20	20	30	200
0 to 300	0 to 2,050	30 to 0	0 to -100	5	10	50	50	30	500

Bottom Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
1 1/2"	1/8	35° to 140°	35° to 140°	Glycerin	00000000	000000
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	0000000	00000
4"	1/4	35° to 140°	35° to 140°	Glycerin	00000000	00000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	00000000	000000
4"	1/4	35° to 140°	35° to 140°	Glycerin	00000000	000000

Center Back Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
1 1/2"	1/8	35° to 140°	35° to 140°	Glycerin	00000000	000000
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	0000000	00000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	00000000	000000

Center Back Connection (Panel Mount)

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type	For Panel Cutout Dia.		Each
1 1/2"	1/8	35° to 140°	35° to 140°	Glycerin	1 39/64"	00000000	000000
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	2 31/64"	00000000	00000

Lower Back Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
4"	1/4	35° to 140°	35° to 140°	Glycerin	00000000	000000
NPT Male with Calibration Certificate Traceable to NIST
4"	1/4	35° to 140°	35° to 140°	Glycerin	00000000	000000

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

For Use With: Air and Water
Accuracy: ±1.5% Full Scale (Not Graded); except
4" Dial Dia.: ±1% Full Scale (Grade 1A)

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
0 to 15	30 to 0	0.5	1	5	10
0 to 30	30 to 0	1	2	10	30
0 to 30	30 to 0	0.5	1	5	10
0 to 60	30 to 0	2	5	20	30
0 to 60	30 to 0	1	2	10	10
0 to 100	30 to 0	2	5	20	30
0 to 160	30 to 0	2	5	20	30
0 to 160	30 to 0	4	10	40	30
0 to 300	30 to 0	5	10	50	30

Bottom Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
2 1/2"	1/4	-40° to 140°	-40° to 210°	Glycerin	0000000	0000000
4"	1/2	-40° to 140°	-40° to 210°	Glycerin	0000000	000000

Center Back Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
2 1/2"	1/4	-40° to 140°	-40° to 210°	Glycerin	0000000	0000000

Center Back Connection (Panel Mount)

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type	For Panel Cutout Dia.		Each
2 1/2"	1/4	-40° to 140°	-40° to 210°	Glycerin	2 29/64"	0000000	0000000

Vibration-Resistant Pressure and Vacuum Gauges

Bottom Connection

Center Back Connection

Bottom Connection

Center Back Connection

A glycerin-filled dial reduces needle flutter for precise readings in high-vibration applications. Also known as compound gauges, these measure both pressure and vacuum. Use them with pumps, filters, regulators, compressors, and in suction and process lines.

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

ABS Plastic Case with Brass Connection—Dual Scale (psi/in. of Hg, kPa)

For Use With: Air
Accuracy: ±1.5% Full Scale (Not Graded)

Available Pressure and Vacuum Ranges
Pressure Range		Vacuum Range		Graduation Marks			Numeric Increments
psi	kPa	in. of Hg	kPa	psi	in. of Hg	kPa	psi	in. of Hg	kPa
0 to 15	0 to 100	30 to 0	0 to -100	0.5	1	5	5	10	50
0 to 30	0 to 200	30 to 0	0 to -100	1	2	10	10	30	100
0 to 60	0 to 400	30 to 0	0 to -100	2	5	20	20	30	200
0 to 100	0 to 680	30 to 0	0 to -100	2	5	20	20	30	200

						Bottom Connection		Center Back Connection
Dial Dia.	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Liquid Type		Each		Each
NPT Male
2 1/2"	1/4	0° to 140°	0° to 140°	Black	Glycerin	00000000	000000	00000000	000000

Vibration- and Corrosion-Resistant Vacuum Gauges

Single Scale With Bottom Connection

Single Scale With Center Back Connection

Single Scale With Center
Back Connection
(Panel Mount)

Dual Scale With Bottom Connection

Dual Scale With Center Back Connection

Dual Scale With Center
Back Connection
(Panel Mount)

Dual Scale With Lower Back Connection

Bottom Connection

Center Back Connection

Center Back Connection (Panel Mount)

Lower Back Connection

Designed for harsh environments prone to vibration, these gauges pair a corrosion-resistant 304 stainless steel case with a glycerin-filled dial to reduce needle flutter. Use them with vacuum pumps, packaging equipment, and in suction lines to measure and display vacuum.

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

304 Stainless Steel Case with 316 Stainless Steel Connection—Single Scale (in. of Hg)

For Use With: Air
Accuracy:
2" Dial Dia.: ±1% Mid Scale (Grade A)
2 1/2" Dial Dia.: ±1.5% Full Scale (Not Graded)
4" Dial Dia.: ±1% Full Scale (Grade 1A)

Available Vacuum Ranges
Vacuum Range, in. of Hg	Graduation Marks, in. of Hg	Numeric Increments, in. of Hg
30 to 0	0.5	5

Bottom Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
2 1/2"	1/4	-40° to 140°	-40° to 210°	Glycerin	00000000	0000000
4"	1/2	-40° to 140°	-40° to 210°	Glycerin	00000000	000000

Center Back Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
2"	1/8	0° to 140°	0° to 210°	Glycerin	000000000	0000000
2 1/2"	1/4	-40° to 140°	-40° to 210°	Glycerin	00000000	000000

Center Back Connection (Panel Mount)

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type	For Panel Cutout Dia.		Each
2"	1/8	0° to 140°	0° to 210°	Glycerin	2 5/64"	000000000	0000000
2 1/2"	1/4	-40° to 140°	-40° to 210°	Glycerin	2 29/64"	000000000	000000

304 Stainless Steel Case with Brass Connection—Dual Scale (in. of Hg, kPa)

For Use With: Air
Accuracy: ±1% Mid Scale (Grade A); except
4" Dial Dia.: ±1% Full Scale (Grade 1A)

		Available Vacuum Ranges
		Gauges				Gauges with NIST Certificate
Vacuum Range		Graduation Marks		Numeric Increments		Graduation Marks		Numeric Increments
in. of Hg	kPa	in. of Hg	kPa	in. of Hg	kPa	in. of Hg	kPa	in. of Hg	kPa
1 1/2" Dial Diameter
30 to 0	0 to -100	0.5	2	5	20	__	__	__	__
2 1/2" Dial Diameter
30 to 0	0 to -100	0.5	2	5	10	0.5	2	5	10
4" Dial Diameter
30 to 0	0 to -100	0.5	1	5	10	0.5	1	5	10

Bottom Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
1 1/2"	1/8	35° to 140°	35° to 140°	Glycerin	00000000	000000
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	000000000	00000
4"	1/4	35° to 140°	35° to 140°	Glycerin	000000000	00000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	000000000	000000
4"	1/4	35° to 140°	35° to 140°	Glycerin	000000000	000000

Center Back Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
1 1/2"	1/8	35° to 140°	35° to 140°	Glycerin	00000000	000000
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	000000000	00000
NPT Male with Calibration Certificate Traceable to NIST
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	000000000	000000

Center Back Connection (Panel Mount)

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type	For Panel Cutout Dia.		Each
1 1/2"	1/8	35° to 140°	35° to 140°	Glycerin	1 39/64"	000000000	000000
2 1/2"	1/4	35° to 140°	35° to 140°	Glycerin	2 31/64"	000000000	00000

Lower Back Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Liquid Type		Each
4"	1/4	35° to 140°	35° to 140°	Glycerin	000000000	000000
NPT Male with Calibration Certificate Traceable to NIST
4"	1/4	35° to 140°	35° to 140°	Glycerin	000000000	000000

Vibration-Resistant Vacuum Gauges

Bottom Connection

Center Back Connection

Bottom Connection

Center Back Connection

A glycerin-filled dial reduces needle flutter for precise readings in high-vibration applications. Gauges can be used with vacuum pumps, packaging equipment, and in suction lines to measure and display vacuum.

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

ABS Plastic Case with Brass Connection—Dual Scale (in. of Hg, kPa)

For Use With: Air
Accuracy: ±1.5% Full Scale (Not Graded)

Available Vacuum Ranges
Vacuum Range		Graduation Marks		Numeric Increments
in. of Hg	kPa	in. of Hg	kPa	in. of Hg	kPa
30 to 0	0 to -100	0.5	2	5	20

						Bottom Connection		Center Back Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Liquid Type		Each		Each
NPT Male
2 1/2"	1/4	0° to 140°	0° to 140°	Black	Glycerin	00000000	000000	00000000	000000

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About Pressure Gauges

Vibration- and Corrosion-Resistant Pressure and Vacuum Gauges

Vibration-Resistant Pressure and Vacuum Gauges

Vibration- and Corrosion-Resistant Vacuum Gauges

Vibration-Resistant Vacuum Gauges