SMC AR20-D Compressed Air Regulators

Regulators
Pipe Size					Overall								Mounting Brackets
Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Housing Material	Max. Temp., °F	Regulating Accuracy	Choose a Pressure Regulating Range, psi		Each		Each
NPT Female Inlet and Outlet
1/4	1/4	52 scfm @ 100 psi	145	No	1 5/8"	3 11/16"	Aluminum	140°	±3 psi	3-29, 7.25-123	41735K523	000000	8812K61	00000
BSPP Female Inlet and Outlet
1/4	1/4	52 scfm @ 100 psi	145	No	1 5/8"	3 11/16"	Aluminum	140°	±3 psi	7.25-123	8357N111	00000	8812K61	0000

Relieving with Gauge and Knob

Regulators
Pipe Size					Overall									Mounting Brackets
Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Housing Material	Max. Temp., °F	Includes	Regulating Accuracy	Choose a Pressure Regulating Range, psi		Each		Each
NPT Female Inlet and Outlet
1/8	1/8	52 scfm @ 100 psi	145	Yes	1 5/8"	3 11/16"	Aluminum	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	8812K442	000000	8812K61	00000
1/4	1/4	52 scfm @ 100 psi	145	Yes	1 5/8"	3 11/16"	Aluminum	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	8812K443	00000	8812K61	0000
BSPP Female Inlet and Outlet
1/4	1/4	52 scfm @ 100 psi	145	Yes	1 5/8"	3 11/16"	Aluminum	140°	Mounting Bracket	±3 psi	7.25-123	3250T741	00000	8812K61	0000

SMC Modular Compressed Air Regulators

Adjust and maintain the pressure of your compressed air. These regulators connect to other SMC units of the same series with joiner clamps (sold separately)—even if the pipe sizes are slightly different—so you can customize your air preparation system. They have a pressure gauge that's recessed into the body to protect it from accidental bumps. Attach them to a wall or equipment with the included mounting brackets. Install these regulators in your air line after filters.

Relieving regulators exhaust when the downstream pressure exceeds the set pressure. Nonrelieving regulators do not exhaust excess downstream pressure. They’re often used to conserve air or to avoid contaminating a controlled area. To prevent pressure buildup, manually vent them or add a relief valve.

Joiner clamps (sold separately) create compact, airtight connections between components. These clamps come with mounting brackets.

Padlockable covers (sold separately) clamp over the regulator knob to prevent unauthorized pressure changes.

Regulators

Regulators
	Pipe Size					Overall								Replacement Mounting Brackets		Joiner Clamps		Tamper-Resistant Padlockable Covers
Manufacturer Series	Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Max. Temp., °F	Includes	Regulating Accuracy	Choose a Pressure Regulating Range, psi		Each		Each		Each		Each
Relieving—Aluminum Housing
Series No. 20—NPT Female Inlet and Outlet
AR20-D	1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	8847N111	000000	8812K61	00000	8210N111	00000	9239N11	00000
AR20-D	1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	8847N112	00000	8812K61	0000	8210N111	0000	9239N11	0000
Series No. 20—BSPT Female Inlet and Outlet
AR20-D	1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	8847N115	00000	8812K61	0000	8210N111	0000	9239N11	0000
AR20-D	1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	8847N116	00000	8812K61	0000	8210N111	0000	9239N11	0000
Series No. 20—BSPP Female Inlet and Outlet
AR20-D	1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	8847N113	00000	8812K61	0000	8210N111	0000	9239N11	0000
AR20-D	1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	3-29, 7.25-123	8847N114	00000	8812K61	0000	8210N111	0000	9239N11	0000
Nonrelieving—Aluminum Housing
Series No. 20—NPT Female Inlet and Outlet
AR20-D	1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	7.25-123	9926N332	00000	8812K63	0000	8210N112	0000	______	00
AR20-D	1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 5/8"	140°	Mounting Bracket	±3 psi	7.25-123	9926N333	00000	8812K63	0000	8210N112	0000	______	00

Replacement Pressure Gauges for Regulators with Aluminum Housing

Pressure Range, psi		Each
3-29	8847N83	000000
7.25-123	8847N84	00000

Compressed Air Regulators for Double-Acting Cylinders

When your double-acting cylinder sends high-speed air in reverse, a check valve inside these regulators blocks it. They maintain compressed air at the pressure you set, even when the exhaust ports on your control valve can’t keep up with reverse flow. Install them in your air line after filters.

Relieving regulators exhaust when the downstream pressure exceeds the set pressure.

Nonrelieving regulators do not exhaust excess downstream pressure.

Pipe Size					Overall
Inlet	Outlet	Max. Flow Rate	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Housing Material	Max. Temp., °F	Features	Includes	Regulating Accuracy	Pressure Regulating Range, psi		Each
Relieving
NPT Female Inlet and Outlet
1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	8095N22	000000
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	8095N23	00000
BSPP Female Inlet and Outlet
1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	8095N28	00000
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	8095N29	00000
BSPT Female Inlet and Outlet
1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	8095N32	00000
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	8095N33	00000
Nonrelieving
NPT Female Inlet and Outlet
1/8	1/8	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	9271N777	00000
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	9271N778	00000
BSPP Female Inlet and Outlet
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	9271N784	00000
BSPT Female Inlet and Outlet
1/4	1/4	70 scfm @ 100 psi	145	Yes	1 5/8"	3 3/4"	Aluminum	140°	Internal Check Valve	Mounting Bracket	±3%	7.25-123	9271N786	00000

Tamper-Resistant Padlockable Covers for
SMC Modular Compressed Air Regulators

Shown Installed (Padlock Not Included)

Cover

Cover Shown Open

Guard against accidental or unauthorized pressure changes to your SMC regulators and filter/regulators. Clamp these covers over the regulator knob and secure them with a padlock.

			Overall
For Manufacturer Series	For Max. Shackle Dia.	For Max. No. of Padlocks	Wd.	Ht.	Material	Color	Temp. Range, °F		Each
AR20-D, AR20M-D, AW20-D, AWD20-D, AWM20-D	5/16"	1	2 1/8"	1 1/4"	Plastic	White	25° to 140°	9239N11	00000

Compressed Air Regulators

SMC Modular Compressed Air Regulators

Compressed Air Regulators for Double-Acting Cylinders

Tamper-Resistant Padlockable Covers forSMC Modular Compressed Air Regulators

Tamper-Resistant Padlockable Covers for
SMC Modular Compressed Air Regulators