3.5 psi Pressure Gauges | McMaster-Carr

Filter by

For Use With

System of Measurement

Minimum Pressure

Pipe Size

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

20,000 psi or greater

Less than 10,000 kPa

10,000 kPa to 19,999 kPa

20,000 kPa to 29,999 kPa

30,000 kPa to 99,999 kPa

100,000 kPa or greater

Not Rated

Measures

Differential Pressure

Case Material

Glass-Filled Nylon

Measurement Unit

Pounds per Square Inch

Fitting Connection

Threaded

Display Type

Color Band

Panel Cutout Diameter

Thread Type

Maximum Temperature

Material

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

Minimum Temperature

Color

Depth

Finish

Accuracy Grade

Accuracy Scale

Lens Material

RoHS

REACH

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

Forward

How can we improve?

6 Products

Low-Pressure Differential Gauges with Color Indicator

A band of green, yellow, and red provides a clear indication of changes in differential pressure. Gauges are commonly used to indicate clogged filters.

Glass-Filled Nylon Case with Anodized Aluminum Connections (Pounds per Square Inch)

Image of Product. Front orientation. Differential Pressure Gauges. Low-Pressure Differential Gauges with Color Indicator.

	Pressure Range, psi
	Green Band	Yellow Band	Red Band	Max. Pressure, psi	Environment Temp. Range, ° F	Process Temp. Range, ° F	Ht.	Wd.	Dp.	Case Color	For Use With	Accuracy		Each
1/4 NPT Female Threaded Pipe Connection



		0 to 2	2 to 2.5	2.5 to 3.5	300	-40 to 200	-40 to 200	3 1/4"	3 1/4"	1 1/2"	Black	Air, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, Acetylene	±5%	0000000	0000000

Panel-Mount Back-Pressure-Regulating Valves for Air and Inert Gas

Threads below the adjustment knob and an included panel-mount nut allow you to add these valves to your instrument panel. Often used in systems running on air compressors, they're installed after pressure-sensitive equipment to obstruct flow and maintain a consistent operating pressure. If the system pressure exceeds the set pressure, they exhaust through the outlet. Adjust the set pressure within the range.

	Inlet				Outlet
	Pipe Size	Thread Size	Location	Max. Pressure, psi	Pipe Size	Thread Size	Location	Pressure Adjustment Method	End-to-End Lg.	Panel Cutout Dia.	For Use With	Temp. Range, ° F	Outlet Pressure, psi		Each
NPT Female







				Polysulfone Body—Buna-N Diaphragm and Silicone Seal

				1/8	—	Side	100	1/8	—	Side	Knob	1 1/8"	9/16"	Air, Inert Gas	40 to 150	0.5 to 3.5	00000000	000000


				UNF Female







								Polysulfone Body—Buna-N Diaphragm and Silicone Seal

								—	10-32	Side	100	—	10-32	Side	Knob	1 1/8"	9/16"	Air, Inert Gas	40 to 150	0.5 to 3.5	00000000	00000

Plastic Panel-Mount Pressure-Regulating Valves for Air

Regulate pressure in air systems from your instrument panel—these valves have threads below the adjustment knob and come with a panel-mount nut. All automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Body is polysulfone, which is lightweight and corrosion resistant.

	Inlet				Outlet
	Pipe Size	Thread Size	Location	Max. Pressure, psi	Pipe Size	Thread Size	Location	Pressure Adjustment Method	End-to-End Lg.	Panel Cutout Dia.	For Use With	Temp. Range, ° F	Outlet Pressure, psi		Each
NPT Female







				Polysulfone Body—Buna-N/EPDM Diaphragm and Polyurethane Rubber Seal

				1/8	—	Side	150	1/8	—	Side	Knob	1 9/16"	9/16"	Air	40 to 150	0.5 to 3.5	00000000	000000


				UNF Female







								Polysulfone Body—Buna-N/EPDM Diaphragm and Polyurethane Rubber Seal

								—	10-32	Side	150	—	10-32	Side	Knob	1 1/8"	9/16"	Air	40 to 150	0.5 to 3.5	00000000	00000

Plastic Panel-Mount Pressure-Regulating Valves for Water

For easy panel mounting in your water system, these valves have threads below the adjustment knob and come with a panel-mount nut. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Body is polysulfone, which is lightweight and corrosion resistant.

	Inlet			Outlet
	Thread Size	Location	Max. Pressure, psi	Thread Size	Location	Pressure Adjustment Method	End-to-End Lg.	Panel Cutout Dia.	For Use With	Temp. Range, ° F	Outlet Pressure, psi		Each
UNF Female







				Polysulfone Body—Buna-N/EPDM Diaphragm and Polyurethane Rubber Seal

				10-32	Side	150	10-32	Side	Knob	1 1/8"	9/16"	Water	40 to 150	0.5 to 3.5	00000000	000000