6 Inch Pressure Gauges | McMaster-Carr

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Dial Diameter

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Maximum Pressure

1,000 psi to 1,999.9 psi

2,000 psi to 9,999.9 psi

10,000 psi to 19,999.9 psi

Pipe Size

For Use With

Scale Type

Pressure Numeric Increments

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Pounds per Square Inch

Measures

Graduations

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Case Material

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Accuracy Grade

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Fitting Connection

Accuracy Scale

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REACH

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Export Control Classification Number (ECCN)

2B999

EAR99

DFARS Specialty Metals

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178 Products

About Pipe Size

About Pressure Gauges

Bottom Connection (Flange Mount)

Keep tabs on liquid levels in pump and tank applications with these gauges—a dual scale displays pressure in feet of H₂O and psi. They are suitable for critical processes that require high accuracy, such as hydraulic and laboratory applications. Mount them with the face dial upright.

Aluminum Case with Brass Connection—Dual Scale (psi, ft. of H₂O)

For Use With: Air, Water, and Hydraulic Fluid
Accuracy: ±1% Full Scale (Grade 1A)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	ft. of H₂O	psi	ft. of H₂O	psi	ft. of H₂O
6" Dial Diameter
0 to 15	0 to 35	0.25	0.5	1	5
0 to 30	0 to 70	0.5	1	5	10
0 to 60	0 to 140	1	2.5	5	10
0 to 100	0 to 230	1	5	10	50
0 to 160	0 to 370	2.5	5	20	50
0 to 200	0 to 460	2	5	20	50
0 to 300	0 to 690	5	10	50	100

				Mounting		Bolt			Flange		Bottom Connection (Flange Mount)
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Orientation	Fasteners Included	Circle Dia.	Hole Dia.	No. of Holes	Location	OD		Each
NPT Male
6"	1/4	-40° to 150°	-40° to 150°	Upright	No	6 3/4"	13/64"	3	Back	7 1/2"	0000000	0000000

High-Accuracy Vibration- and Corrosion-Resistant Pressure Gauges

Bottom Connection

Lower Back Connection

Lower Back Connection (Flange Mount)

Bottom Connection

Lower Back Connection

Lower Back Connection (Flange Mount)

Built for harsh environments prone to vibration, these gauges pair a corrosion resistant stainless steel case and connection threads with a glycerin-filled dial to reduce needle flutter. Use them with pumps, filters, regulators, and in process lines to measure and display pressure. They are suitable for critical processes that require high accuracy, such as hydraulic and laboratory applications. Mount gauges with the dial face upright.

304 Stainless Steel Case with 316 Stainless Steel Connection—Single Scale (psi)

For Use With: Air, Water, and Hydraulic Fluid
Accuracy: ±1% Full Scale (1A); except
6" Dial. Dia.: ±0.5% Full Scale (2A)

	Available Pressure Ranges
	6" Dial Diameter
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
0 to 15	0.25	3
0 to 30	0.5	5
0 to 60	1	10
0 to 100	1	10
0 to 160	2	20
0 to 200	2	20
0 to 300	5	30
0 to 400	5	50
0 to 600	10	100
0 to 1,000	10	100
0 to 1,500	25	300
0 to 2,000	20	200
0 to 3,000	50	500
0 to 5,000	50	500
0 to 10,000	100	1,000

Bottom Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Mounting Orientation		Each
6"	1/4	0° to 155°	0° to 140°	Upright	000000	0000000

Lower Back Connection

NPT Male
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Mounting Orientation		Each
6"	1/4	0° to 155°	0° to 140°	Upright	000000	0000000

Lower Back Connection (Flange Mount)

					Flange			Bolt
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Mounting Orientation	Location	OD	Mounting Fasteners Included	Circle Dia.	Hole Dia.	No. of Holes		Each
NPT Male
6"	1/4	0° to 155°	0° to 140°	Upright	Front	7 3/4"	No	7"	15/64"	3	000000	0000000

Corrosion-Resistant Vacuum Gauges

Bottom Connection

Lower Back Connection

Bottom Connection

Lower Back Connection

The case and connection threads are stainless steel for protection in corrosive environments. Use these gauges with vacuum pumps, packaging equipment, and in suction lines to measure and display vacuum.

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

For Use With: Air
Accuracy: See Table

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

NPT Male
Dial Diameter	Pipe Size	Accuracy	Environment Temp. Range, °F	Process Temp. Range, °F		Each
Bottom Connection
6"	1/2	±1% Full Scale (Grade 1A)	-40° to 200°	-20° to 250°	00000000	0000000
Lower Back Connection
6"	1/2	±1% Full Scale (Grade 1A)	-40° to 200°	-20° to 250°	00000000	000000

Test Gauges for Pressure

Dual Scale with Bottom Connection (Flange Mount)

Bottom Connection

Test and calibrate transmitters, gauges, and other equipment that measures pressure.

Aluminum Case with Brass Connection—Dual Scale (psi, kPa)

For Use With: Air, Hydraulic Fluid, Natural Gas, Water
Accuracy: ±0.5% Full Scale (Grade 2A)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa
1/4 Pipe Size
0 to 15	0 to 100	0.1	1	1	10
0 to 30	0 to 200	0.2	2	5	20
0 to 60	0 to 400	0.5	5	5	50
0 to 100	0 to 690	1	5	10	50
0 to 160	0 to 1,100	1	10	20	100
0 to 200	0 to 1,380	2	10	20	200
0 to 300	0 to 2,000	2	20	50	200
0 to 400	0 to 2,700	5	20	50	500
0 to 600	0 to 4,000	5	50	50	500
0 to 1,000	0 to 6,900	10	50	100	1,000
1/2 Pipe Size
0 to 15	0 to 100	0.2	1	1	10
0 to 30	0 to 200	0.5	5	5	50
0 to 60	0 to 400	1	10	5	50
0 to 100	0 to 700	1	10	10	100
0 to 160	0 to 1,100	2	10	20	100
0 to 200	0 to 1,400	2	20	20	100
0 to 300	0 to 2,000	5	20	25	500
0 to 400	0 to 3,000	5	50	50	500
0 to 600	0 to 4,000	10	100	50	1,000
0 to 1,000	0 to 7,000	10	100	100	1,000

					Bolt			Flange		Bottom Connection (Flange Mount)
Dial Dia.	Pipe Size	Environment Temperature Range, °F	Process Temperature Range, °F	Mounting Fasteners Included	Circle Dia.	Hole Dia.	No. of Holes	Location	OD		Each
NPT Male
6"	1/4	-40° to 150°	-40° to 150°	No	6 3/4"	13/64"	3	Back	7 5/8"	000000	0000000
6"	1/2	-20° to 200°	-20° to 250°	No	7"	1/4"	3	Back	7 9/16"	0000000	000000
NPT Male—Calibration Certificate Traceable to NIST
6"	1/4	-40° to 150°	-40° to 150°	No	6 3/4"	13/64"	3	Back	7 5/8"	0000000	000000
6"	1/2	-20° to 200°	-20° to 250°	No	7"	1/4"	3	Back	7 9/16"	0000000	000000

High-Accuracy Test Gauges for Pressure

Bottom Connection

With an accuracy of ±0.25%, these gauges are designed for testing, calibrating, laboratory applications, and other critical applications that require precision.

Epoxy-Coated Aluminum Case with Brass Connection—Single Scale (psi)

For Use With: Air, Ethyl Alcohol, Hydraulic Fluid, Natural Gas, Nitrogen, Water
Accuracy: ±0.25% Full Scale (Grade 3A)

Available Pressure Ranges
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
6" Dial Dia.
0 to 15	0.05	0.5
0 to 30	0.1	1
0 to 60	0.2	5
0 to 100	0.2	5
0 to 200	0.5	10
0 to 400	1	20

						Bolt			Flange		Bottom Connection (Flange Mount)
Dial Dia.	Pipe Size	Environment Temperature Range, °F	Process Temperature Range, °F	Case Color	Mounting Fasteners Included	Circle Dia.	Hole Thread Size	No. of Holes	Location	OD		Each
NPT Male
6"	1/4	-20° to 200°	-20° to 250°	Black	No	7"	1/4"-20	3	Front	7 9/16"	000000	0000000
NPT Male—Calibration Certificate Traceable to NIST
6"	1/4	-20° to 200°	-20° to 250°	Black	No	7"	1/4"-20	3	Front	7 9/16"	0000000	000000

Epoxy-Coated Aluminum Case with 400 Nickel Connection—Single Scale (psi)

For Use With: Air, Ethyl Alcohol, Hydraulic Fluid, Natural Gas, Nitrogen, Water
Accuracy: ±0.25% Full Scale (Grade 3A)

	Available Pressure Ranges
	Gauges		Gauges with NIST Certificate
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi	Graduation Marks, psi	Numeric Increments, psi
6" Dial Dia.—1/4 Pipe Size
0 to 600	2	50	2	50
6" Dial Dia.—1/2 Pipe Size
0 to 1,000	2	50	2	50
0 to 1,500	5	100	5	100
0 to 3,000	10	200	10	200
0 to 5,000	50	500	10	500
0 to 10,000	100	500	20	500

						Bolt			Flange		Bottom Connection (Flange Mount)
Dial Dia.	Pipe Size	Environment Temperature Range, °F	Process Temperature Range, °F	Case Color	Mounting Fasteners Included	Circle Dia.	Hole Thread Size	No. of Holes	Location	OD		Each
NPT Male
6"	1/4	-20° to 200°	-20° to 250°	Black	No	7"	1/4"-20	3	Front	7 9/16"	00000000	0000000
6"	1/2	-20° to 200°	-20° to 250°	Black	No	7"	1/4"-20	3	Front	7 9/16"	0000000	000000
NPT Male—Calibration Certificate Traceable to NIST
6"	1/4	-20° to 200°	-20° to 250°	Black	No	7"	1/4"-20	3	Front	7 9/16"	00000000	000000
6"	1/2	-20° to 200°	-20° to 250°	Black	No	7"	1/4"-20	3	Front	7 9/16"	0000000	000000

Corrosion-Resistant Test Gauges for Pressure

Bottom Connection

Lower Back Connection

Bottom Connection

Lower Back Connection

All-stainless steel construction makes these gauges suitable for testing and calibrating in corrosive environments.

Heat-treated gauges have a yellow tint.

304 Stainless Steel Case with Heat-Treated 316 Stainless Steel Connection—Single Scale (psi)

For Use With: Air, Hydraulic Fluid, Water
Accuracy: ±0.5% Full Scale (Grade 2A)

Available Pressure Ranges
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
0 to 15	0.1	1
0 to 30	0.2	5
0 to 60	0.5	5
0 to 100	1	10
0 to 160	2	20
0 to 200	2	20
0 to 300	2	50
0 to 400	5	50
0 to 600	5	50
0 to 1,000	10	100

				Bottom Connection		Lower Back Connection
Dial Dia.	Pipe Size	Environment Temperature Range, °F	Process Temperature Range, °F		Each		Each
NPT Male
6"	1/2	-20° to 150°	-20° to 250°	0000000	0000000	0000000	0000000
NPT Male—Calibration Certificate Traceable to NIST
6"	1/2	-20° to 150°	-20° to 250°	0000000	000000	0000000	000000

Test Gauges for Vacuum

Bottom Connection (Flange Mount)

Lower Back Connection (Flange Mount)

Bottom Connection

Lower Back Connection

Test and calibrate transmitters, gauges, and other equipment that measures vacuum.

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

For Use With: Air
Accuracy: ±0.25% Full Scale (Grade 3A)

	Available Vacuum Ranges
	Vacuum Range		Graduation Marks		Numeric Increments
Dial Dia.	in. of Hg	kPa	in. of Hg	kPa	in. of Hg	kPa
6"	30 to 0	0 to 0	0.1	0.5	1	10

					Bolt			Flange
Dial Dia.	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Mounting Fasteners Included	Circle Dia.	Hole Thread Size	No. of Holes	Location	OD		Each
Bottom Connection (Flange Mount)
NPT Male
6"	1/4	-20° to 200°	-20° to 250°	No	7"	1/4"-20	3	Front	7 9/16"	0000000	0000000
NPT Male—Calibration Certificate Traceable to NIST
6"	1/4	-20° to 200°	-20° to 250°	No	7"	1/4"-20	3	Front	7 9/16"	0000000	000000
Lower Back Connection (Flange Mount)
NPT Male
6"	1/4	-20° to 200°	-20° to 250°	No	7"	1/4"-20	3	Front	7 9/16"	0000000	000000
NPT Male—Calibration Certificate Traceable to NIST
6"	1/4	-20° to 200°	-20° to 250°	No	7"	1/4"-20	3	Front	7 9/16"	0000000	000000

Email Us

About Pipe Size

About Pressure Gauges

High-Accuracy Pressure Gauges for Pumps

High-Accuracy Vibration- and Corrosion-Resistant Pressure Gauges

Corrosion-Resistant Vacuum Gauges

Test Gauges for Pressure

High-Accuracy Test Gauges for Pressure

Corrosion-Resistant Test Gauges for Pressure

Test Gauges for Vacuum