ASME B40.1 Level IV Pressure Gauges

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For Use With

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Maximum Pressure

1,000 psi to 1,999.9 psi

2,000 psi to 9,999.9 psi

Dial Type

Material

Thread Type

Measurement Unit

Pounds per Square Inch

Measures

Pressure

Pressure Numeric Increments

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Threaded

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Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

Specifications Met

NACE MR0175/ISO 15156

OSHA Compliant 29 CFR 1910.177

UL Standard

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

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50 Products

About Pressure Gauges

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

About Pipe Size

Single Scale With Bottom Connection

Dual Scale With Bottom Connection

Dual Scale With Center Back Connection

Dual Scale With Lower Back Connection

Bottom Connection

Center Back Connection

Lower Back Connection

Use these gauges with pumps, filters, regulators, and in process lines to monitor the pressure of compressed gas. Mount them with the dial face upright. Gauges for use with acetylene can also be used in welding applications.

Gauges with brass case are cleaned to meet ASME B40.1, Level IV for oxygen service.

Gauges with 304 stainless steel case are cleaned and bagged to meet ASME B40.1, Level IV for oxygen service.

Brass Case with Brass Connection—Single Scale (psi)

For Use With: Air, Acetylene, Carbon Dioxide, and Oxygen
Accuracy: ±2% Mid Scale (Grade B)

Available Pressure Ranges
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
0 to 30	1	5
0 to 60	1	10
0 to 100	2	20
0 to 200	5	40
0 to 400	10	50
0 to 600	10	100
0 to 1,000	20	200
0 to 2,000	50	400
0 to 3,000	50	500
0 to 4,000	100	500

					Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Mounting Orientation		Each
NPT Male
2"	1/4	-40° to 140°	-40° to 140°	Upright	32255K7	000000
2 1/2"	1/4	-40° to 140°	-40° to 140°	Upright	32255K6	00000

304 Stainless Steel Case with Brass Connection—Dual Scale (psi, kPa)

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

		Available Pressure Ranges
		Bottom and Center Back Connections				Lower Back Connection
Pressure Range		Graduation Marks		Numeric Increments		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa	psi	kPa	psi	kPa
2 1/2" Dial Diameter
0 to 15	0 to 102	0.2	2	3	20	__	__	__	__
0 to 30	0 to 205	0.5	5	5	50	__	__	__	__
0 to 100	0 to 680	2	10	20	100	__	__	__	__
0 to 200	0 to 1,350	5	50	50	200	__	__	__	__
0 to 300	0 to 2,050	5	50	50	500	__	__	__	__
0 to 600	0 to 4,100	10	100	100	1,000	__	__	__	__
4" Dial Diameter
0 to 15	0 to 103	0.2	1	3	10	0.2	1	3	10
0 to 30	0 to 206	0.5	2	5	20	0.5	2	5	20
0 to 100	0 to 680	1	10	10	100	1	10	10	100
0 to 200	0 to 1,360	2	20	20	200	2	20	20	200
0 to 300	0 to 2,060	5	20	50	200	5	20	50	200
0 to 600	0 to 4,100	10	50	100	500	10	100	100	1,000

Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Mounting Orientation		Each
NPT Male
2 1/2"	1/4	-40° to 140°	-40° to 140°	Upright	9816T11	000000
4"	1/4	-40° to 140°	-40° to 140°	Upright	9816T12	000000
Center Back Connection
NPT Male
2 1/2"	1/4	-40° to 140°	-40° to 140°	Upright	9816T21	00000
Lower Back Connection
NPT Male
4"	1/4	-40° to 140°	-40° to 140°	Upright	9816T22	000000

About Pipe Size

Gas Pressure Gauges