Bleach Indicators | McMaster-Carr

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	Pipe Size Pipe Size

1/4

1/2

	Thread Type Thread Type

NPT

	For Use With For Use With	Show

Bleach

	For Use With For Use With	Hide

Warning: Products have one, but not necessarily all, of the selected characteristics.

	System of Measurement System of Measurement

Inch

	Dial Diameter Dial Diameter

2 1/2"

	Connection Location Connection Location

	Bottom

	Scale Scale

kg/cm²

kPa

psi

	Dial Type Dial Type


Dry	Liquid Filled

	Connection Material Connection Material

Stainless Steel

Plastic

	Measures Measures

Pressure

	Case Material Case Material

Stainless Steel

Steel

	Connection Style Connection Style

Threaded

	Scale Type Scale Type

	Dual

	Maximum Process Temperature Maximum Process Temperature

140° F

190° F

210° F

	Gender Gender

Female

	Display Type Display Type

	Dial

	Connection Type Connection Type

	Pipe

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Maximum Environment Temperature Maximum Environment Temperature

140° F

190° F

	Lens Material Lens Material

Plastic

	Accuracy Grade Accuracy Grade

Not Graded

	Guard Material Guard Material

28 Products

About Pressure Gauges

About Pipe Size

With 316 Stainless Steel Guard

With PVC Guard

With CPVC Guard

Bottom Connection (Steel Guard)

Bottom Connection (Plastic Guard)

A plastic or stainless steel guard, also known as an isolator, protects the gauge from damage caused by corrosive chemicals. Use them with pumps, filters, regulators, and in process lines to measure and display pressures.

Polypropylene and 316 stainless steel guards are more chemical resistant than PVC and CPVC guards.

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

304 Stainless Steel Case with 316 Stainless Steel Connection—Dual Scale (psi, kPa)

For Use With: Air, Water, Hydraulic Fluid, Ammonia, Bleach, Boric Acid, Gasoline, Diesel Fuel, and Natural Gas
Accuracy: ±1.6% Full Scale (Not Graded)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa
2 1/2" Dial Diameter
0 to 15	0 to 100	0.2	2	3	20
0 to 30	0 to 200	0.5	5	5	50
0 to 60	0 to 400	1	10	10	100
0 to 100	0 to 700	2	10	20	100
0 to 160	0 to 1,100	2	20	20	200
4" Dial Diameter
0 to 15	0 to 100	0.1	2	2	20
0 to 30	0 to 200	0.5	5	5	50
0 to 60	0 to 400	1	10	10	100
0 to 100	0 to 700	2	10	20	100
0 to 160	0 to 1,100	2	20	20	200

						Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Mounting Orientation	Guard Material		Each
NPT Female
2 1/2"	1/4	-40° to 140°	0° to 210°	Any	316 Stainless Steel	0000000	0000000
2 1/2"	1/2	-40° to 140°	0° to 210°	Any	316 Stainless Steel	0000000	000000
4"	1/4	-40° to 140°	0° to 210°	Any	316 Stainless Steel	0000000	000000
4"	1/2	-40° to 140°	0° to 210°	Any	316 Stainless Steel	0000000	000000

Painted Steel Case with PVC Plastic Connection—Dual Scale (psi, kg/cm²)

For Use With: Water, Salt Water, Hydraulic Fluid, Bleach, Boric Acid, and Carbon Dioxide
Accuracy: ±2% Mid Scale (Grade B)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	kg/cm²	psi	kg/cm²	psi	kg/cm²
0 to 30	0 to 2.1	0.5	0.05	5	0.5
0 to 60	0 to 4.2	1	0.1	10	1
0 to 150	0 to 11.2	2	0.2	20	2

							Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Guard Material	Guard Color		Each
NPT Female
2"	1/4	40° to 140°	40° to 140°	Black	PVC Plastic	Gray	0000000	0000000
2"	1/2	40° to 140°	40° to 140°	Black	PVC Plastic	Gray	0000000	000000

Painted Steel Case with CPVC Plastic Connection—Dual Scale (psi, kg/cm²)

For Use With: Water, Salt Water, Hydraulic Fluid, Bleach, Boric Acid, and Carbon Dioxide
Accuracy: ±2% Mid Scale (Grade B)

Available Pressure Ranges
Pressure Range		Graduation Marks		Numeric Increments
psi	kg/cm²	psi	kg/cm²	psi	kg/cm²
0 to 30	0 to 2.1	0.5	0.05	5	0.5
0 to 60	0 to 4.2	1	0.1	10	1
0 to 150	0 to 11.2	2	0.2	20	2

							Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Case Color	Guard Material	Guard Color		Each
NPT Female
2"	1/4	40° to 190°	40° to 190°	Black	CPVC Plastic	Gray	0000000	0000000
2"	1/2	40° to 190°	40° to 190°	Black	CPVC Plastic	Gray	0000000	000000

Vibration-Resistant Pressure Gauges for Chemicals

Bottom Connection

These gauges have a glycerin-filled dial that reduces needle flutter for precise readings in high-vibration applications reaching 2,000 psi. A 316 stainless steel guard, also known as an isolator, protects the gauge from damage caused by corrosive chemicals. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.

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

304 Stainless Steel Case with 316 Stainless Steel Connection—Dual Scale (psi, kPa)

For Use With: Air, Water, Hydraulic Fluid, Ammonia, Bleach, Boric Acid, Gasoline, Diesel Fuel, and Natural Gas
Accuracy: ±1.6% Full Scale (Not Graded)

Available Pressure Gauges
Pressure Range		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa
2 1/2" Dial Diameter
0 to 15	0 to 100	0.2	2	3	20
0 to 30	0 to 200	0.5	5	5	50
0 to 60	0 to 400	1	10	10	100
0 to 100	0 to 700	2	10	20	100
0 to 160	0 to 1,100	2	20	20	200
0 to 200	0 to 1,400	5	20	40	200
0 to 300	0 to 2,000	5	50	50	400
0 to 400	0 to 2,800	10	100	50	500
0 to 600	0 to 4,000	10	100	100	1,000
0 to 1,000	0 to 7,000	20	100	200	1,000
0 to 2,000	0 to 14,000	50	200	400	2,000
4" Dial Diameter
0 to 15	0 to 100	0.1	2	2	20
0 to 30	0 to 200	0.5	5	5	50
0 to 60	0 to 400	1	10	10	100
0 to 100	0 to 700	2	10	20	100
0 to 160	0 to 1,100	2	20	20	200
0 to 200	0 to 1,400	5	50	50	200
0 to 300	0 to 2,000	5	50	50	500
0 to 400	0 to 2,800	10	100	50	500
0 to 600	0 to 4,000	10	100	100	800
0 to 1,000	0 to 7,000	20	100	200	1,000
0 to 2,000	0 to 14,000	50	200	400	2,000

						Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Guard Material	Mounting Orientation		Each
NPT Female
2 1/2"	1/4	35° to 140°	0° to 210°	316 Stainless Steel	Any	000000	0000000
2 1/2"	1/2	35° to 140°	0° to 210°	316 Stainless Steel	Any	000000	000000
4"	1/4	35° to 140°	0° to 210°	316 Stainless Steel	Any	000000	000000
4"	1/2	35° to 140°	0° to 210°	316 Stainless Steel	Any	000000	000000

High-Pressure Gauges for Chemicals

Bottom Connection

A 316 stainless steel guard, also known as an isolator, protects the gauge from damage caused by corrosive chemicals. Gauges are commonly used with pumps, filters, regulators, and in process lines to measure and display pressures up to 2,000 psi.

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

304 Stainless Steel Case with 316 Stainless Steel Connection—Dual Scale (psi, kPa)

For Use With: Air, Water, Hydraulic Fluid, Ammonia, Bleach, Boric Acid, Gasoline, Diesel Fuel, and Natural Gas
Accuracy: ±1.6% Full Scale (Not Graded)

Pressure Range		Graduation Marks		Numeric Increments
psi	kPa	psi	kPa	psi	kPa
2 1/2" Dial Diameter
0 to 200	0 to 1,400	5	20	40	200
0 to 300	0 to 2,000	5	50	50	400
0 to 400	0 to 2,800	5	50	50	500
0 to 600	0 to 4,000	10	100	100	1,000
0 to 1,000	0 to 7,000	20	100	200	1,000
0 to 2,000	0 to 14,000	50	200	400	2,000
4" Dial Diameter
0 to 200	0 to 1,400	5	50	50	200
0 to 300	0 to 2,000	5	50	50	500
0 to 400	0 to 2,800	5	50	50	500
0 to 600	0 to 4,000	10	100	100	800
0 to 1,000	0 to 7,000	20	100	200	1,000
0 to 2,000	0 to 14,000	50	200	400	2,000

						Bottom Connection
Dial Diameter	Pipe Size	Environment Temp. Range, °F	Process Temp. Range, °F	Guard Material	Mounting Orientation		Each
NPT Female
2 1/2"	1/4	-40° to 140°	0° to 210°	316 Stainless Steel	Any	000000	0000000
2 1/2"	1/2	-40° to 140°	0° to 210°	316 Stainless Steel	Any	000000	000000
4"	1/4	-40° to 140°	0° to 210°	316 Stainless Steel	Any	000000	000000
4"	1/2	-40° to 140°	0° to 210°	316 Stainless Steel	Any	000000	000000

Gauge Guards

316 Stainless Steel Guard

316 Stainless Steel Guard With Drain Port

Plastic Guard

Also known as isolators or diaphragm seals, these protect gauges from corrosive process media. Fill guards with ISO Grade 32 hydraulic oil (not included) before use.

316 stainless steel guards provide excellent corrosion and chemical resistance and can handle higher temperatures and pressures than plastic guards.

Polypropylene and PVDF guards are more chemical resistant than PVC and CPVC guards.

Guards with drain port allow you to remove process media.

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

Pipe Connections
Inlet	Outlet	Gasket Material	For Use With	Min. Pressure, psi	Max. Pressure	Max. Temp., °F	Ht.		Each
316 Stainless Steel Body
1/4 NPT Female	1/4 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	1 1/2"	0000000	0000000
1/2 NPT Female	1/4 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	1 1/2"	0000000	000000
1/2 NPT Female	1/2 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	1 1/2"	0000000	000000
316 Stainless Steel Body with 1/4 NPT Female Drain Port
1/4 NPT Female	1/4 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	2"	0000000	000000
1/2 NPT Female	1/4 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	2"	0000000	000000
1/2 NPT Female	1/2 NPT Female	316 Stainless Steel	Acetylene, Air, Ammonia, Argon, Bleach, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydrogen, Liquid Nitrogen, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Steam, Water	60	2,500 psi @ 72° F	300°	2"	0000000	000000
PVC Plastic Body
1/4 NPT Female	1/4 NPT Female	Fluoroelastomer Rubber	Bleach, Boric Acid, Hydraulic Fluid, Salt Water, Water	__	150 psi @ 72° F	140°	2 3/4"	0000000	000000
1/2 NPT Female	1/4 NPT Female	Fluoroelastomer Rubber	Bleach, Boric Acid, Hydraulic Fluid, Salt Water, Water	__	150 psi @ 72° F	140°	2 3/4"	0000000	000000
CPVC Plastic Body
1/4 NPT Female	1/4 NPT Female	Fluoroelastomer Rubber	Bleach, Boric Acid, Hydraulic Fluid, Salt Water, Water	__	150 psi @ 72° F	190°	2 3/4"	0000000	000000
1/2 NPT Female	1/4 NPT Female	Fluoroelastomer Rubber	Bleach, Boric Acid, Hydraulic Fluid, Salt Water, Water	__	150 psi @ 72° F	190°	2 3/4"	0000000	000000
Polypropylene Plastic Body
1/4 NPT Female	1/4 NPT Female	Fluoroelastomer Rubber	Bleach, Boric Acid, Carbon Dioxide, Hydraulic Fluid, Salt Water, Water	__	150 psi @ 72° F	240°	2 3/4"	0000000	000000
PVDF Plastic Body
1/2 NPT Female	1/4 NPT Female	Fluoroelastomer Rubber	Bleach, Boric Acid, Carbon Dioxide, Hydraulic Fluid, Salt Water, Water	__	150 psi @ 72° F	300°	2 3/4"	0000000	000000

Email Us

About Pressure Gauges

About Pipe Size

Low-Pressure Gauges for Chemicals

Vibration-Resistant Pressure Gauges for Chemicals

High-Pressure Gauges for Chemicals

Gauge Guards