Hazardous Location Flow Switches

Choose a Category

	For Use With For Use With

Air

Inert Gas

Water

Oil

	Pipe Size Pipe Size

	Body Material Body Material

Brass

Stainless Steel

	Shape Shape


Straight	90° Elbow

	Set Point Set Point

0.04-0.75 gpm

0.18-2.7 scfm

3-2,400 gpm

17-10,000 scfm

	Set Point Configuration Set Point Configuration

Nonadjustable

Adjustable

	Maximum Pressure Maximum Pressure

	Mounting Location Mounting Location

Inline

Insertion

	Gender Gender

Female

Male

	Current Current

5 A @ 120 V AC

10 A @ 120 V AC

	Voltage Voltage

120V AC

240V AC

	Industry Designation Industry Designation

SPDT

DPDT

	Number of Circuits Controlled Number of Circuits Controlled

	Specifications Met Specifications Met

CSA

	Environmental Rating Environmental Rating

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

NEMA 4

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

NEC Class I Divisions 1,
2 Groups C, D

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

	Maximum Temperature Maximum Temperature

-4° F

220° F

275° F

	Conduit Gender Conduit Gender

Male

Female

	Switch Starting Position Switch Starting Position

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

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

	Wire Lead Length Wire Lead Length

18"

	End-to-End Length End-to-End Length

	Set Point Adjustment Method Set Point Adjustment Method

Trimmable Paddles

Adjustment Screw

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16 Products

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

These switches are UL listed and CSA certified 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.

			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	000000

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.

			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.

				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

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Hazardous Location Flow Switchesfor Water, Air, and Inert Gas

Adjustable Hazardous Location FlowSwitches for Water, Air, and Inert Gas

Hazardous Location Insertion FlowSwitches for Water, Oil, Air, and Inert Gas

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

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

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