Hazardous Location Pressure Switches

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	Environment Environment	Show

Hazardous

	Environment Environment	Hide

	For Use With For Use With

	Maximum Setpoint Maximum Setpoint

	Pipe Size Pipe Size

	Thread Type Thread Type

NPT

	Minimum Setpoint Minimum Setpoint

	Environmental Rating Environmental Rating

IP65

IP66

IP67

NEC Class I Division 1
Groups A, B, C, D

NEC Class I Division 2
Groups A, B, C, D

NEC Class I Divisions
1, 2 Groups A, B, C, D

NEC Class I Divisions
1, 2 Groups B, C, D

NEC Class I Divisions
1, 2 Groups C, D

NEC Class II Division 1
Groups E, F ,G

NEC Class II Division 2
Groups F, G

NEC Class II Divisions
1, 2 Groups E, F, G

	Operates On Operates On

Pressure

Differential Pressure

	Maximum Continuous Pressure Maximum Continuous Pressure

	Connection Material Connection Material

Brass

Stainless Steel

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

1 On (Normally Closed)

1 Off (Normally Open) or 1
On (Normally Closed)

2 Off (Normally Open) or 2
On (Normally Closed)

	Housing Material Housing Material

Aluminum

Stainless Steel

Brass

	Setpoint Adjustability Setpoint Adjustability

Adjustable

	Connection Style Connection Style

Threaded

	Scale Scale

psi

	For Conduit Trade Size For Conduit Trade Size

1/2

	Gasket Material Gasket Material

Rubber

Stainless Steel

	Industry Designation Industry Designation

SPDT

DPDT

	Adjustment Type Adjustment Type

Internal

	Maximum Switching Current Maximum Switching Current

5 A @ 125 V AC

5 A @ 250 V AC

	Specifications Met Specifications Met

CE Marked

CSA

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

DFARS Specialty Metals
COTS-Exempt

	System of Measurement System of Measurement

Inch

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

RoHS Compliant

RoHS Compliant with
Exemptions

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30 Products

About Pressure Switches

Built with an explosionproof enclosure to meet NEMA 7 and 9 standards for hazardous locations, these switches were tested and verified by UL and CSA for use where explosive liquids, dust, and gas are present. When they reach the set pressure, they power equipment, signal controls, or trigger alarms. They’re single pole, double throw (SPDT) and can be installed to turn one circuit from off to on (normally open) or from on to off (normally closed). In addition to being UL listed and CSA certified, these switches are CE marked, so they also meet European safety standards.

All switches are IP and NEMA rated for use outdoors and protection from some corrosion, dust, and spraying water.

IP67 and NEMA 4X rated switches seal out water from temporary submersion and have increased protection against corrosion, similar to 304 stainless steel.

Wire Leads
	Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Continuous Pressure, psi	Accuracy	Max. Switching Current	Connection Material	For Use With	Environmental Rating		Each
1/4 NPT Male Pipe Connection
A	8-60	5	60	±5%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9	00000000	0000000
A	10-100	9	100	±5%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9	00000000	000000
A	20-200	16	200	±2%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9	00000000	000000
A	50-500	60	500	±2%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9	00000000	000000
A	100-1,000	87	1,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9	00000000	000000
A	200-2,000	165	2,000	±2%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Division 1 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP67 NEMA 4X NEMA 7 NEMA 9	00000000	000000
1/2 NPT Female Pipe Connection
B	6-30	2	30	±1%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G IP66 NEMA 4 NEMA 7 NEMA 9	00000000	000000
B	12-60	2	60	±1%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G IP66 NEMA 4 NEMA 7 NEMA 9	00000000	000000
B	20-100	3.5	100	±1%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G IP66 NEMA 4 NEMA 7 NEMA 9	00000000	000000
B	40-200	6.5	200	±1%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Division 1 Groups E, F ,G IP66 NEMA 4 NEMA 7 NEMA 9	00000000	000000
B	80-400	11	400	±1%	5 A @ 125 V AC 5 A @ 250 V AC	316 Stainless Steel	Air, Diesel Fuel, Gasoline, Hydraulic Fluid, Natural Gas, Water	NEC Class I Divisions 1, 2 Groups A, B, C, D NEC Class II Divisions 1, 2 Groups E, F, G IP66 NEMA 4 NEMA 7 NEMA 9	00000000	000000

Washdown Differential Pressure Switches with Dial Indicator

For Use With: Air, Hydraulic Fluid, Water
Connection Material: Brass
Connection: NPT Female
Switching Current: 0.25A
Switching Voltage: 120V AC

Not only are these switches rated NEMA 4X for protection from dirt, washdowns, and corrosion, they also have an indicator for additional monitoring at the source of your application. Switches operate based on the difference in pressure between two process lines. When the differential pressure exceeds your setpoint, the switch is activated. Use them to automate controls or activate an alarm in your process. Switches are single pole, double throw (SPDT), so they switch one circuit on or off. They can be wired normally open (NO) or normally closed (NC).

					Temperature Range, °F		Conduit		Lens
Setpoint, psi	Approximate Difference Between Setpoint and Reset Point, psi	Max. Pressure, psi	Accuracy	Pipe Size	Environment	Process	For Trade Size	Connection	Dia.	Material	Specifications Met		Each
Brass Housing
3-15	3	5,000	±2%	1/4	-40° to 175°	-40° to 175°	1/2	NPT Female	3"	Glass	CSA Certified	00000000	0000000
6-30	6	5,000	±2%	1/4	-40° to 175°	-40° to 175°	1/2	NPT Female	3"	Glass	CSA Certified	00000000	000000
10-50	10	5,000	±2%	1/4	-40° to 175°	-40° to 175°	1/2	NPT Female	3"	Glass	CSA Certified	00000000	000000

Hazardous Location Flow Switches for Water, Air, and Inert Gas

These switches are UL listed for environments with flammable gases and combustible dust. They activate or deactivate equipment when the flow rate reaches your set point. All are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

Switches with a brass body meet NEC Class I, Divisions 1 and 2, Groups B, C, and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G.

Switches with a 304 stainless steel body are more corrosion resistant than switches with a brass body and meet NEC Class I, Divisions 1 and 2, Groups A, B, C, and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G.

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

			Set Point						Conduit
Pipe Size	Thread Type	Gender	For Water, gpm	For Air and Inert Gas, scfm	Max. Pressure	Temp. Range, °F	Voltage	Current	Trade Size	Thread Type	Gender	End-to-End Lg.		Each
Brass Body
1/2	NPT	Female	1.5	6.5	250 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	2 1/4"	00000000	0000000
3/4	NPT	Female	2	10	250 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	2 3/8"	00000000	000000
1	NPT	Female	3	14	250 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	2 1/2"	00000000	000000
1 1/4	NPT	Female	4	21	250 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	2 5/8"	00000000	000000
1 1/2	NPT	Female	6	33	250 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	2 7/8"	00000000	000000
2	NPT	Female	10	43	250 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	3"	00000000	000000
304 Stainless Steel Body
1/2	NPT	Female	1.5	6.5	2000 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	2 1/4"	00000000	000000
3/4	NPT	Female	2	10	2000 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	2 5/8"	00000000	000000
1	NPT	Female	3	14	2000 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	3"	00000000	000000
2	NPT	Female	10	43	2000 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	4 3/4"	00000000	00000000

Adjustable Hazardous Location Flow Switches for Water, Air, and Inert Gas

For applications with a variable flow rate in environments with flammable gases and combustible dust, these UL-listed switches have an adjustment screw to alter the set point. They activate or deactivate equipment when the flow rate reaches your set point. All are single pole, double throw (SPDT) and can be installed to turn one circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

Switch with a brass body meets NEC Class I, Divisions 1 and 2, Groups B, C, and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G.

Switch with a 304 stainless steel body is more corrosion resistant than the switch with a brass body. It meets NEC Class I, Divisions 1 and 2, Groups A, B, C, and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G.

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

			Set Point						Conduit
Pipe Size	Thread Type	Gender	For Water, gpm	For Air and Inert Gas, scfm	Max. Pressure	Temp. Range, °F	Voltage	Current	Trade Size	Thread Type	Gender	End-to-End Lg.		Each
Brass Body
1/2	NPT	Female	0.04 to 0.75	0.18 to 2.7	1450 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	3 5/8"	00000000	0000000
304 Stainless Steel Body
1/2	NPT	Female	0.04 to 0.75	0.18 to 2.7	1450 psi @ 70° F	-4° to 220°	120V AC/ 240V AC	5 A @ 120 V AC	3/4	NPT	Male	3 5/8"	00000000	000000

Hazardous Location Insertion Flow Switches for Water, Oil, Air, and Inert Gas

For installation in environments with flammable gases and combustible dust, these flow switches are UL listed for hazardous locations. They meet NEC Class I, Divisions 1 and 2, Groups C and D; and NEC Class II, Divisions 1 and 2, Groups E, F, and G. They’re installed in tees or pipe outlets to detect the flow rate of liquid in contact with the sensing paddle. Switches activate or deactivate equipment when the flow rate reaches your set point. All come with five sensing paddles that can be trimmed to fit a range of pipe sizes. The flow rate varies based on the pipe size and paddle used.

SPDT switches control one circuit. They can be installed to turn the circuit from “off” to “on” (normally open) or from “on” to “off” (normally closed).

DPDT switches control two circuits. They can be installed to turn both circuits from “off” to “on” (normally open) or from “on” to “off” (normally closed).

Switches with a 316 stainless steel body are more corrosion resistant than switches with a brass body.

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

				Set Point						Conduit
Pipe Size	Thread Type	Gender	For Pipe Size	For Water and Oil, gpm	For Air and Inert Gas, scfm	Max. Pressure	Temp. Range, °F	Voltage	Current	Trade Size	Thread Type	Gender	Body Ht.		Each
SPDT
Brass Body
1 1/2	NPT	Male	1 1/2 to 20	3 to 2,400	17 to 10,000	1000 psi @ 70° F	-4° to 275°	120V AC 240V AC	10 A @ 120 V AC	3/4	NPT	Female	8"	00000000	0000000
316 Stainless Steel Body
1 1/2	NPT	Male	1 1/2 to 20	3 to 2,400	17 to 10,000	2000 psi @ 70° F	-4° to 275°	120V AC 240V AC	10 A @ 120 V AC	3/4	NPT	Female	8"	00000000	000000
DPDT
Brass Body
1 1/2	NPT	Male	1 1/2 to 20	3 to 2,400	17 to 10,000	1000 psi @ 70° F	-4° to 275°	120V AC 240V AC	10 A @ 120 V AC	3/4	NPT	Female	8"	00000000	000000
316 Stainless Steel Body
1 1/2	NPT	Male	1 1/2 to 20	3 to 2,400	17 to 10,000	2000 psi @ 70° F	-4° to 275°	120V AC 240V AC	10 A @ 120 V AC	3/4	NPT	Female	8"	00000000	000000