BSPT Thread Pressure Gauges

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Less than 1,000 psi

1,000 psi to 1,999.9 psi

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120° F

140° F

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REACH

DFARS Specialty Metals

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Export Control Classification Number (ECCN)

EAR99

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133 Products

About Pipe Size

About Pressure Gauges

About Air Preparation

Dual Scale With Center Back Connection

Bottom Connection

Center Back Connection

These are the most commonly used pressure gauges. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.

Gauges with 304 stainless steel case or ABS plastic case have better corrosion resistance than gauges with brass or steel case.

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

For Use With: Air, Water, Hydraulic Fluid, Carbon Dioxide, and Natural Gas
Accuracy: ±2% Mid Scale (Grade B)
Mount with the dial face upright

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa
0 to 30	0 to 200	1	5	5	50
0 to 60	0 to 400	2	10	10	100
0 to 100	0 to 700	2	20	20	100
0 to 160	0 to 1,100	5	20	20	200
0 to 200	0 to 1,400	5	50	40	200
0 to 300	0 to 2,000	10	50	50	500
0 to 600	0 to 4,000	20	100	100	1,000
0 to 1,000	0 to 7,000	20	200	200	1,000

						Bottom Connection		Center Back Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Mounting Orientation		Each		Each
BSPT Male
1 5/8"	1/8	-40° to 120°	-40° to 120°	Black	Upright	0000000	000000	0000000	000000
2"	1/4	-40° to 120°	-40° to 120°	Black	Upright	0000000	00000	0000000	00000
2 1/2"	1/4	-40° to 120°	-40° to 120°	Black	Upright	0000000	00000	0000000	00000

Miniature Pressure Gauges

Center Back Connection

The small dial on these gauges allows for installation in tight spaces. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.

Gauges with ABS plastic case are more corrosion resistant than brass-case gauges.

ABS Plastic Case with Nylon Connection—Single Scale (psi)

For Use With: Air, Water, Hydraulic Fluid, Ethyl Alcohol, Nitrogen, and Natural Gas
Accuracy: ±4% Full Scale (Not Graded)

Available Pressure Ranges
Pressure Range, psi	Graduation Marks, psi	Numeric Increments, psi
0 to 60	2	10
0 to 100	2	20
0 to 160	4	40

						Center Back Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Mounting Orientation		Each
BSPT Male
1"	1/8	32° to 140°	0° to 140°	Black	Any	000000000	000000

Compressed Air Regulators

Adjust and maintain the pressure of your compressed air. Install regulators in your air line after filters.

Relieving regulators exhaust when the downstream pressure exceeds the set pressure.BSPT threads are also known as R threads.

Mounting brackets allow you to attach the regulator to a wall or equipment.

Relieving with Knob

Regulators
Pipe Size				Overall							Mounting Brackets
Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Wd.	Ht.	Max. Temp., °F	Regulating Accuracy	Pressure Regulating Range, psi		Each		Each
Aluminum Housing—BSPT Female Inlet and Outlet
1/4	1/4	53 scfm @ 100 psi	145	2 1/16"	4 9/16"	140°	±2.9%	7.25-123	0000000	000000	00000000	00000
3/8	3/8	53 scfm @ 100 psi	145	2 1/16"	4 9/16"	140°	±2.9%	7.25-123	0000000	00000	00000000	0000
1/2	1/2	106 scfm @ 100 psi	145	2 3/4"	5"	140°	±2.9%	7.25-123	0000000	00000	00000000	0000

Parker Modular Compressed Air Regulators

P33 Series

Adjust and maintain the pressure of your compressed air. These regulators connect to other Parker units of the same series with joiner clamps (sold separately), so you can customize your air preparation system. All are relieving style, so they exhaust when the downstream pressure exceeds the set pressure. Install them in your air line after filters.

Mounting brackets (sold separately) allow you to attach the regulator to a wall or equipment.

Joiner clamps (sold separately) connect these regulators to other Parker modular components with the same series number, even if the pipe sizes are slightly different. They create compact, airtight connections that are easy to swap out. All joiner clamps come with mounting brackets, except those for P3Y series regulators.

Regulators
	Pipe Size					Overall							Mounting Brackets		Joiner Clamps
Manufacturer Series	Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Max. Temp., °F	Regulating Accuracy	Choose a Pressure Regulating Range, psi		Each		Each		Each
Aluminum Housing
Series No. P33—BSPT Female Inlet and Outlet
P33	1/2	1/2	233 scfm @ 100 psi	300	Yes	2 7/8"	5 7/8"	150°	±3 psi	0-60, 0-125, 0-250	0000000	000000	0000000	000000	00000000	000000

SMC Modular Compressed Air Regulators

Adjust and maintain the pressure of your compressed air. These regulators use joiner clamps (sold separately) to connect to other SMC units of the same series so you can customize your air preparation system. Install them in your air line after filters.

Relieving regulators exhaust when the downstream pressure exceeds the set pressure. Nonrelieving regulators don’t exhaust any downstream pressure. They’re often used to conserve air or to avoid contaminating a controlled area. To prevent pressure buildup, manually vent them or add a relief valve.

Mounting brackets (sold separately) allow you to attach the regulator to a wall or equipment.

Joiner clamps (sold separately) connect these regulators to other SMC modular components with the same series number, even if the pipe sizes are slightly different. They create compact, airtight connections that are easy to swap out. They come with mounting brackets.

Regulators

Regulators
	Pipe Size		Thread Size					Overall								Replacement Mounting Brackets		Joiner Clamps
Manufacturer Series	Inlet	Outlet	Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Max. Temp., °F	Includes	Regulating Accuracy	Choose a Pressure Regulating Range, psi		Each		Each		Each
Relieving—Zinc Housing
Series No. 10—Metric Female Inlet and Outlet
AR10-A	__	__	M5	M5	5 scfm @ 100 psi	145	Yes	1"	2 3/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-100	00000000	000000	000000	00	0000000	00000
Relieving—Aluminum Housing
Series No. 20—BSPT Female Inlet and Outlet
AR20-D	1/8	1/8	__	__	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	00000000	00000	0000000	00000	00000000	0000
AR20-D	1/4	1/4	__	__	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	00000000	00000	0000000	0000	00000000	0000
Series No. 30—BSPT Female Inlet and Outlet
AR30-D	1/4	1/4	__	__	141 scfm @ 100 psi	145	Yes	2 1/8"	4 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	00000000	00000	0000000	0000	00000000	0000
AR30-D	3/8	3/8	__	__	141 scfm @ 100 psi	145	Yes	2 1/8"	4 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	00000000	00000	0000000	0000	00000000	0000
Series No. 40—BSPT Female Inlet and Outlet
AR40-D	1/4	1/4	__	__	247 scfm @ 100 psi	145	Yes	2 3/4"	5"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	00000000	00000	0000000	0000	00000000	0000
AR40-D	3/8	3/8	__	__	247 scfm @ 100 psi	145	Yes	2 3/4"	5"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	00000000	00000	0000000	0000	00000000	0000
AR40-D	1/2	1/2	__	__	247 scfm @ 100 psi	145	Yes	2 3/4"	5"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	00000000	00000	0000000	0000	00000000	0000
Series No. 50—BSPT Female Inlet and Outlet
AR50-D	3/4	3/4	__	__	706 scfm @ 100 psi	145	Yes	3 1/2"	6 5/8"	140°	Mounting Bracket	±3 psi	7.25-123	0000000	00000	0000000	0000	00000000	00000
AR50-D	1	1	__	__	706 scfm @ 100 psi	145	Yes	3 1/2"	6 5/8"	140°	Mounting Bracket	±3 psi	7.25-123	0000000	00000	0000000	0000	00000000	00000
Nonrelieving—Zinc Housing
Series No. 10—Metric Female Inlet and Outlet
AR10-A	__	__	M5	M5	5 scfm @ 100 psi	145	Yes	1"	2 3/8"	140°	Mounting Bracket	±3 psi	7.25-100	00000000	00000	000000	00	0000000	0000

Replacement Pressure Gauges for Regulators with Aluminum Housing

Pressure Range, psi		Each
3-29	0000000	000000
7.25-123	0000000	00000

Easy-Set Compressed Air Regulators

A pressure-calibrated dial on these regulators allows for easy adjustments to outlet pressure in high-flow applications. They are relieving regulators, so they exhaust when the downstream pressure exceeds the set pressure. Install them in your air line after filters.

BSPP threads are also known as G threads.

Mounting brackets (sold separately) let you attach the regulator to a wall or equipment.

Regulators
Pipe Size					Overall								Mounting Brackets
Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Housing Material	Max. Temp., °F	Regulating Accuracy	Pressure Regulating Range, psi		Each		Each
Zinc Housing
BSPP Female Inlet and Outlet
1/4	1/4	117 scfm @ 100 psi	300	No	3 1/4"	4 1/8"	Zinc	150°	±3 psi	0-160	0000000	0000000	0000000	000000

Compressed Air Regulators for Double-Acting Cylinders

When your double-acting cylinder sends high-speed air in reverse, a check valve inside these regulators blocks it. They maintain compressed air at the pressure you set, even when the exhaust ports on your control valve can’t keep up with reverse flow. Install them in your air line after filters.

Relieving regulators exhaust when the downstream pressure exceeds the set pressure.

Nonrelieving regulators do not exhaust excess downstream pressure.

Pipe Size					Overall
Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Housing Material	Max. Temp., °F	Features	Includes	Regulating Accuracy	Pressure Regulating Range, psi		Each
Relieving
BSPP Female Inlet and Outlet
1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	0000000	000000
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	0000000	00000
3/8	3/8	141 scfm @ 100 psi	145	Yes	2 1/8"	4 5/8"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	0000000	00000
BSPT Female Inlet and Outlet
1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	0000000	00000
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	0000000	00000
3/8	3/8	141 scfm @ 100 psi	145	Yes	2 1/8"	4 5/8"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	0000000	00000
Nonrelieving
BSPP Female Inlet and Outlet
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	00000000	00000
3/8	3/8	141 scfm @ 100 psi	145	Yes	2 1/8"	4 5/8"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	00000000	00000
BSPT Female Inlet and Outlet
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	00000000	00000
3/8	3/8	141 scfm @ 100 psi	145	Yes	2 1/8"	4 5/8"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	00000000	00000

Clean Room Precision Compressed Air Regulators

When precision and cleanliness are critical—such as semiconductor manufacturing and food processing—these regulators are cleaned and bagged in an ISO Class 3 clean room to prevent contamination. They deliver steady air pressure to generate precise, repeatable movement. A locking adjustment knob secures your settings to prevent accidental changes. All are relieving regulators, so they exhaust when the downstream pressure exceeds the set pressure. Install them in your air line after filters.

Regulators
Pipe Size					Overall									Mounting Brackets
Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Housing Material	Max. Temp., °F	Environmental Rating	Features	Choose a Pressure Regulating Range, psi		Each		Each
BSPT Female Inlet and Outlet
±1% Regulating Accuracy
1/4	1/4	21 scfm @ 100 psi	100	Yes	2 1/8"	4 5/8"	Aluminum	140°	Fed. Std. Class 1, ISO Class 3	Locking Adjustment Knob	1-29, 2-87	000000	000000	0000000	00000

SMC Modular Compressed Air Regulator Manifolds

Four Manifolds (Each Sold Separately)

Connect two or more of these manifold regulators to meet multiple pressure requirements from a single air supply—set a different output pressure with each regulator. Use joiner clamps (sold separately) to connect them to other SMC units of the same series, so you can customize your air preparation system. These regulators come with one regulated outlet on their back and one unregulated outlet. All are relieving regulators, so they exhaust when the downstream pressure exceeds the set pressure. Install them in your air line after filters.

Joiner clamps (sold separately) create compact, airtight connections between components. These clamps come with mounting brackets.

End block sets (sold separately) allow you to swap out filter/regulator/lubricator components without unthreading your air line connections. The blocks remain connected to your pipe while you replace components between them.

End caps (sold separately) seal off any unused pipe ports on SMC modular systems. They attach with a joiner clamp (not included).

Mounting brackets (sold separately) allow you to attach these regulators to a wall or equipment.

Regulator Manifolds
						Overall							Joiner Clamps		End Block Sets		End Caps		Mounting Brackets
Manufacturer Series	Inlet Pipe Size	Outlet Pipe Size (No. of Outlets)	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Housing Material	Max. Temp., °F	Pressure Regulating Range, psi		Each		Each		Each		Each		Each
Series No. 20
BSPT Female Inlet and Outlets
AR20M-D	1/8	1/8 (1 Unregulated), 1/8 (1 Regulated)	52 scfm @ 100 psi	145	Yes	2 3/16"	3 11/16"	Aluminum	140°	7.25-123	0000000	000000	00000000	00000	0000000	000000	0000000	00000	0000000	00000
AR20M-D	1/4	1/4 (1 Unregulated), 1/4 (1 Regulated)	52 scfm @ 100 psi	145	Yes	2 3/16"	3 11/16"	Aluminum	140°	7.25-123	0000000	00000	00000000	0000	0000000	00000	0000000	0000	0000000	0000
Series No. 30
BSPT Female Inlet and Outlets
AR30M-D	1/4	1/4 (1 Unregulated), 1/4 (1 Regulated)	70 scfm @ 100 psi	145	Yes	2 1/16"	4 5/8"	Aluminum	140°	7.25-123	0000000	00000	00000000	0000	0000000	00000	0000000	0000	0000000	0000
AR30M-D	3/8	3/8 (1 Unregulated), 1/4 (1 Regulated)	70 scfm @ 100 psi	145	Yes	2 1/16"	4 5/8"	Aluminum	140°	7.25-123	0000000	00000	00000000	0000	0000000	00000	0000000	0000	0000000	0000
Series No. 40
BSPT Female Inlet and Outlets
AR40M-D	3/8	3/8 (1 Unregulated), 3/8 (1 Regulated)	141 scfm @ 100 psi	145	Yes	2 3/4"	5"	Aluminum	140°	7.25-123	0000000	00000	00000000	0000	0000000	00000	0000000	0000	0000000	0000
AR40M-D	1/2	1/2 (1 Unregulated), 3/8 (1 Regulated)	141 scfm @ 100 psi	145	Yes	2 3/4"	5"	Aluminum	140°	7.25-123	0000000	00000	00000000	0000	0000000	00000	0000000	0000	0000000	0000

SMC Modular Compressed Air Filter/Regulators for Particle Removal

Clear Bowl

A filter and regulator joined top-to-bottom, these filter/regulators trap particles and maintain pressure in your compressed air line. They connect to other SMC units of the same series with joiner clamps (sold separately), so you can customize your air preparation system. The regulator is relieving, so it will exhaust when the downstream pressure exceeds the set pressure.

Joiner clamps create compact, airtight connections between components, even if the pipe sizes are slightly different. They come with mounting brackets.

Series No. 20—BSPT Female Inlet and Outlet

Filter/Regulators
	Pipe Size								Overall				Joiner Clamps		Replacement Filter Bowls
Manufacturer Series	Inlet	Outlet	Max. Flow Rate	Pressure Regulating Range, psi	Max. Pressure, psi	Max. Temp., °F	Removes Particle Size Down To, microns	Includes	Ht.	Wd.		Each		Each		Each
Polycarbonate Plastic Bowl—Clear with Automatic Drain
AW20-D	1/8	1/8	52 scfm @ 100 psi	7.25-123	145	140°	5	Mounting Bracket	7"	1 5/8"	00000000	000000	00000000	00000	00000000	000000
AW20-D	1/4	1/4	52 scfm @ 100 psi	7.25-123	145	140°	5	Mounting Bracket	7"	1 5/8"	00000000	00000	00000000	0000	00000000	00000

Replacement Mounting Bracket	0000000	Each	00000
Replacement Pressure Gauge	0000000	Each	00000
Replacement Filter Element	000000	Each	0000
Replacement O-Ring	0000000	Each	0000

Series No. 30—BSPT Female Inlet and Outlet

Filter/Regulators
	Pipe Size								Overall				Joiner Clamps		Replacement Filter Bowls
Manufacturer Series	Inlet	Outlet	Max. Flow Rate	Pressure Regulating Range, psi	Max. Pressure, psi	Max. Temp., °F	Removes Particle Size Down To, microns	Includes	Ht.	Wd.		Each		Each		Each
Polycarbonate Plastic Bowl—Clear with Automatic Drain
AW30-D	1/4	1/4	88 scfm @ 100 psi	7.25-123	145	140°	5	Mounting Bracket	9 5/8"	2 1/8"	0000000	000000	00000000	00000	00000000	000000
AW30-D	3/8	3/8	88 scfm @ 100 psi	7.25-123	145	140°	5	Mounting Bracket	9 5/8"	2 1/8"	0000000	00000	00000000	0000	00000000	00000

Replacement O-Ring	0000000	Each	00000
Replacement Pressure Gauge	0000000	Each	00000
Replacement Mounting Bracket	0000000	Each	0000
Replacement Filter Element	000000	Each	0000

Series No. 40—BSPT Female Inlet and Outlet

Filter/Regulators
	Pipe Size								Overall				Joiner Clamps		Replacement Filter Bowls
Manufacturer Series	Inlet	Outlet	Max. Flow Rate	Pressure Regulating Range, psi	Max. Pressure, psi	Max. Temp., °F	Removes Particle Size Down To, microns	Includes	Ht.	Wd.		Each		Each		Each
Polycarbonate Plastic Bowl—Clear with Automatic Drain
AW40-D	3/8	3/8	141 scfm @ 100 psi	7.25-123	145	140°	5	Mounting Bracket	11"	2 3/4"	00000000	0000000	00000000	00000	00000000	000000
AW40-D	1/2	1/2	141 scfm @ 100 psi	7.25-123	145	140°	5	Mounting Bracket	11"	2 3/4"	00000000	000000	00000000	0000	00000000	00000
AW40-D	3/4	3/4	141 scfm @ 100 psi	7.25-123	145	140°	5	Mounting Bracket	11 1/8"	2 3/4"	00000000	000000	00000000	00000	00000000	00000

Replacement O-Ring	0000000	Each	00000
Replacement Pressure Gauge	0000000	Each	00000
Replacement Filter Element	000000	Each	0000
Replacement Mounting Bracket	0000000	Each	0000