Pneumatic Relays | McMaster-Carr

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Inlet Pipe Size

For Use With

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

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DFARS Specialty Metals

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Export Control Classification Number (ECCN)

EAR99

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C-UL Recognized Component

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Output Flow Rate @ 90 psi

29.2 ft³/min

35 ft³/min to 65 ft³/min

37 ft³/min to 79 ft³/min

42 ft³/min

62 ft³/min

155 ft³/min

155 ft³/min to 250 ft³/min

200 ft³/min to 400 ft³/min

325 ft³/min

330 ft³/min to 520 ft³/min

380 ft³/min to 840 ft³/min

615 ft³/min

700 ft³/min to 1,200 ft³/min

Flow Control Type

Length

Inlet Gender

Maximum Input Pressure

Maximum Temperature

Maximum Particle Size

15 Products

Air-Actuated Relays

Also known as an air-to-electric switch, this relay converts an air signal to an electric signal. Use it to actuate solenoid valves and other electric components from your pneumatic control system.

					Air Connection						Conduit Connection
	No. of Terminals	Switching Current @ Voltage	Max. Switching Voltage, V AC	Air Pressure, psi	Pipe Size	Thread Type	Gender	Ht.	Wd.	Dp.	Trade Size	Thread Type	Gender		Each
1 Circuit Controlled with 1 Off or 1 On—SPDT



		3	15 amp @ 240V AC	250	8 to 100	1/8	NPT	Female	3.6"	1"	3.1"	1/2	NPSM	Female	49145K51	0000000

Compressed Air Flow Boosters


Adjustable	Fixed	Fixed with Flange

Create a high-flow air stream from your compressed air supply. Flow boosters draw in ambient air, which amplifies compressed air flow. To maximize performance and service life, install a filter inline before the booster to remove particles down to the maximum particle size. Use hose clamps (not included) to connect hose or duct to the inlet or outlet. Boosters with flange mount easily near your equipment.

Adjustable—Adjustable boosters allow you to fine-tune the flow—rotate the knurled ring to change the amount of ambient air drawn into the booster.

		Input				Ambient Air Inlet		Outlet		Overall		Flange		Mounting Holes
	Flow Input to Output Ratio	Flow Rate @ 90 psi, ft³/min	Pressure, psi	Output Flow Rate @ 90 psi, ft³/min	Max. Particle Size, μm	Connection	For Tube ID	Connection	Outlet Tube OD	Lg.	Wd.	Ht.	Lg.	No. of	Dia.	Mounting Fasteners Included		Each
Adjustable







				1/8 NPT Male Inlet

				1:6	13	5 to 150	35 to 65	20	Clamp On	0.75"	Clamp On	0.75"	2 9/16"	1"	—	—	—	—	—	19075K93	000000


				1:8	13	5 to 150	37 to 79	20	Clamp On	0.75"	Clamp On	0.75"	2 9/16"	1 1/8"	—	—	—	—	—	19075K94	00000
				1:12	25	5 to 150	155 to 250	20	Clamp On	1.125"	Clamp On	1.125"	2 5/8"	1 1/2"	—	—	—	—	—	19075K95	000000




						1/4 NPT Male Inlet

						1:15	28	5 to 150	200 to 400	20	Clamp On	1.5"	Clamp On	1.5"	3 1/4"	2"	—	—	—	—	—	19075K86	000000


						1:20	29	5 to 150	330 to 520	20	Clamp On	2"	Clamp On	2"	3 1/4"	2 1/2"	—	—	—	—	—	19075K87	000000
						1:22	40	5 to 150	380 to 840	20	Clamp On	2.5"	Clamp On	2.5"	4 5/8"	3"	—	—	—	—	—	19075K88	000000




								3/8 NPT Male Inlet

								1:25	51	5 to 150	700 to 1,200	20	Clamp On	3.5"	Clamp On	3.5"	5 1/4"	4"	—	—	—	—	—	19075K89	000000


								Fixed







												1/8 NPT Female Inlet

												1:4	8	10 to 200	29.2	5	Clamp On	0.75"	Clamp On	0.75"	2 1/2"	1 3/8"	—	—	—	—	—	5205K28	000000


												1:4	8	10 to 200	29.2	5	Clamp On	1.33"	Clamp On	0.75"	2 1/8"	1 3/8"	—	—	—	—	—	5205K27	000000
												1:4	17	10 to 200	62	5	Clamp On	1.33"	Clamp On	0.5"	2 5/8"	1 3/8"	—	—	—	—	—	5205K29	000000
												1:10	6.5	5 to 150	42	20	Clamp On	0.98"	Clamp On	0.73"	2 3/16"	2 5/16"	1.3"	2.3"	2	0.2"	No	5571K9	000000




														1/4 NPT Female Inlet

														1:15	11	5 to 150	155	20	Clamp On	1.5"	Clamp On	1.22"	2 3/4"	3"	1.9"	3"	2	0.27"	No	5571K11	000000




																3/8 NPT Female Inlet

																1:16	21	5 to 150	325	20	Clamp On	2.95"	Clamp On	2"	3 3/4"	4 1/8"	3.2"	4.1"	2	0.27"	No	5571K12	000000




																1/2 NPT Female Inlet

		1:17	42													5 to 150	615	20	Clamp On	4.92"	Clamp On	4"	7"	8 1/2"	5.9"	8.5"	2	0.53"	No	5571K13	000000