Festo Compressed Air Regulators

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68 Products

About Air Preparation

Customize your air preparation system with dryers, filters, and other purifying parts.

Festo Modular Compressed Air Regulators

Set and hold the pressure of your compressed air. These regulators connect to other Festo units of the same series with joiner clamps (sold separately), so you can customize your air preparation system. They’re relieving, so they will exhaust when the downstream pressure exceeds the set pressure. Install these regulators on your air line after filters. To prevent unwanted pressure changes, slip a padlock through a hole in the knob.

Relieving Regulators

Image of Product. Front orientation. Compressed Air Regulators. Festo Modular Compressed Air Regulators.

Joiner Clamps—Joiner clamps (sold separately) create compact, airtight connections between components that are easy to swap out—even if the pipe sizes are slightly different. They come with mounting brackets.

End Block Sets—End block sets (sold separately) allow you to swap out components without unthreading your air line connections. The blocks remain connected to your pipe while you replace components between them.

	Regulators														Joiner Clamps		End Block Sets
		Pipe Size					Overall
	Mfr. Series	Inlet	Outlet	Max. Flow Rate @ Pressure	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Max. Temp., ° F	Features	Regulating Accuracy	Pressure Regulation, psi		Each		Each		Each
Aluminum Housing







				4 Series—NPT Female Inlet × NPT Female Outlet

				MS4	1/8	1/8	35 scfm @ 100 psi	203	Yes	1 9/16"	4 5/8"	140	Padlockable Knob	±7 psi	7.25 to 174	3286N211	000000	3250T11	000000	———	0


				MS4	1/4	1/4	65 scfm @ 100 psi	206	Yes	1 9/16"	4 29/32"	140	Padlockable Knob	±7 psi	7.4 to 176	3286N11	00000	3250T11	00000	3293N11	000000




						4 Series—BSPP Female Inlet × BSPP Female Outlet

						MS4	1/8	1/8	40 scfm @ 100 psi	203	Yes	1 5/8"	4 5/8"	140	Padlockable Knob	±7 psi	4.4 to 174	3250T1	00000	3250T11	00000	———	0


						MS4	1/4	1/4	64 scfm @ 100 psi	203	Yes	1 5/8"	4 5/8"	140	Padlockable Knob	±7 psi	4.4 to 174	3250T2	00000	3250T11	00000	———	0




								6 Series—NPT Female Inlet × NPT Female Outlet

								MS6	3/8	3/8	158 scfm @ 100 psi	290	Yes	2 7/16"	7 1/2"	140	Padlockable Knob	±7 psi	7.25 to 174	3286N212	00000	3250T12	00000	———	0


								MS6	1/2	1/2	230 scfm @ 100 psi	294	Yes	2 7/16"	7 13/32"	140	Padlockable Knob	±7 psi	7.4 to 176	3286N13	00000	3250T12	00000	3293N13	00000
								MS6	3/4	3/4	230 scfm @ 100 psi	294	Yes	4 1/2"	7 13/32"	140	Padlockable Knob	±7 psi	7.4 to 176	3286N14	000000	3250T12	00000	3293N14	00000




										6 Series—BSPP Female Inlet × BSPP Female Outlet

										MS6	3/8	3/8	205 scfm @ 100 psi	290	Yes	2 7/16"	7 13/32"	140	Padlockable Knob	±7 psi	4.4 to 232	3250T4	00000	3250T12	00000	———	0


										MS6	1/2	1/2	230 scfm @ 100 psi	290	Yes	2 1/2"	7 1/4"	140	Padlockable Knob	±7 psi	4.4 to 232	3250T5	00000	3250T12	00000	———	0




												9 Series—NPT Female Inlet × NPT Female Outlet

												MS9	1	1	375 scfm @ 100 psi	290	Yes	4 5/16"	8 19/32"	140	Padlockable Knob	±7 psi	7.25 to 174	3286N15	000000	3294N13	00000	3293N15	00000

Festo Modular Compressed Air Filter/Regulators for Particle Removal

A filter and regulator joined top-to-bottom, these filter/regulators provide clean, compressed air at the pressure you need. They connect to other Festo units of these same series with joiner clamps (sold separately)—even if the pipe sizes are slightly different—so you can customize your air preparation system. The regulator is relieving, so it will exhaust when the downstream pressure exceeds the set pressure.

Slip a padlock through a hole in the knob to prevent unwanted pressure changes. Add a safety lockout valve to prevent accidental start-ups during maintenance and comply with OSHA lockout/tagout regulations.

4 Series—NPT Female Inlet × NPT Female Outlet

End Block Sets—End block sets (sold separately) allow you to swap out filter/regulator/lubricator components without unthreading your air line connections. The blocks remain connected to your pipe while you replace components between them.

	Filter/Regulators													End Block Sets
	Pipe Size									Overall
	Inlet	Outlet	For Max. Shackle Dia.	Max. Flow Rate @ Pressure	Pressure Regulation Range, psi	Max. Pressure, psi	Max. Temp., ° F	Removes Particle Size Down To, μm	Features	Ht.	Wd.		Each		Each
MS4 Series







				Polycarbonate Bowl—Clear with Polycarbonate Bowl Guard and Automatic Drain

				1/4	1/4	5/8"	65 scfm @ 100 psi	7.4 to 176	176	140	5	Padlockable Knob	8 1/4"	1 5/8"	3287N11	000000	3293N11	000000


				3/8	3/8	5/8"	65 scfm @ 100 psi	7.4 to 176	176	140	5	Padlockable Knob	8 1/4"	1 5/8"	3287N12	000000	3293N12	00000

Accessories and Replacements for Filter/Regulators

Removes Particle Size Down To, μm		Each
5	4120T21	00000
40	4120T112	0000

		Each
Joiner Clamp with Mounting Bracket	3250T11	000000

6 Series—NPT Female Inlet × NPT Female Outlet

	Filter/Regulators													End Block Sets
	Pipe Size									Overall
	Inlet	Outlet	For Max. Shackle Dia.	Max. Flow Rate @ Pressure	Pressure Regulation Range, psi	Max. Pressure, psi	Max. Temp., ° F	Removes Particle Size Down To, μm	Features	Ht.	Wd.		Each		Each
MS6 Series







				Polycarbonate Bowl—Clear with Polycarbonate Bowl Guard and Automatic Drain

				1/4	1/4	5/8"	130 scfm @ 100 psi	7.4 to 176	176	140	5	Padlockable Knob	11 5/8"	3"	3287N21	0000000	3293N21	000000


				1/2	1/2	5/8"	130 scfm @ 100 psi	7.4 to 176	176	140	5	Padlockable Knob	11 5/8"	3"	3287N13	000000	3293N13	00000
				3/4	3/4	5/8"	130 scfm @ 100 psi	7.4 to 176	176	140	5	Padlockable Knob	11 1/2"	2 1/2"	3287N14	000000	3293N14	00000

Accessories and Replacements for Filter/Regulators

Removes Particle Size Down To, μm		Each
5	4120T22	00000
40	4120T113	0000

Compressed Air Filter Seals, Filter/Regulator/Lubricator Joiner Clamps and Replacement Compressed Air Filter Bowls

		Each
O-Ring	3053N12	00000
Joiner Clamp with Mounting Bracket	3250T12	00000
Replacement Filter Bowl	3052N12	00000

9 Series—NPT Female Inlet × NPT Female Outlet

	Filter/Regulators													End Block Sets
	Pipe Size									Overall
	Inlet	Outlet	For Max. Shackle Dia.	Max. Flow Rate @ Pressure	Pressure Regulation Range, psi	Max. Pressure, psi	Max. Temp., ° F	Removes Particle Size Down To, μm	Features	Ht.	Wd.		Each		Each
MS9 Series







				Aluminum Bowl—Opaque with Sight Glass and Automatic Drain

				1	1	5/8"	560 scfm @ 100 psi	7.25 to 174	174	140	5	Padlockable Knob	17 3/4"	3 1/2"	3287N15	0000000	3293N15	000000

Accessories and Replacements for Filter/Regulators

Removes Particle Size Down To, μm		Each
5	3040N17	000000
40	4120T114	00000

		Each
Joiner Clamp with Mounting Bracket	3294N13	000000

Compressed Air Regulator Manifolds

Style C

Use a single air supply to meet the pressure requirements of multiple applications—connect one of these manifolds to your air line, and then set a different output pressure for each station. All are relieving regulators, so they exhaust when the downstream pressure exceeds the set pressure. Install in your air line after filters.

Style C—Style C manifolds are suitable in the high-pressure systems required for sandblasting, molding and machining operations, and conveying.

		Pipe Size					Overall
	Style	Inlet	Outlet	Max. Flow Rate @ Pressure	Max. Pressure, psi	Gauge Included	Wd.	Ht.	Housing Material	Max. Temp., ° F	Regulating Accuracy	Pressure Regulation Range, psi		Each
NPT Female Inlet and Outlet







				2 Stations

				C	1/4	1/4	65 scfm @ 100 psi	206	Yes	3 1/4"	4 7/8"	Aluminum	140	±7 psi	4.4 to 176	8087T11	0000000


				C	1/2	1/2	230 scfm @ 100 psi	290	Yes	6 1/4"	7 3/8"	Aluminum	140	±7 psi	4.4 to 174	8087T15	000000




						4 Stations

						C	1/4	1/4	65 scfm @ 100 psi	206	Yes	6 3/8"	4 7/8"	Aluminum	140	±7 psi	4.4 to 176	8087T12	000000


						C	1/2	1/2	230 scfm @ 100 psi	290	Yes	12 3/8"	7 3/8"	Aluminum	140	±7 psi	4.4 to 174	8087T16	000000




								6 Stations

								C	1/4	1/4	65 scfm @ 100 psi	206	Yes	9 5/8"	4 7/8"	Aluminum	140	±7 psi	4.4 to 176	8087T13	000000


								C	1/2	1/2	230 scfm @ 100 psi	290	Yes	18 5/8"	7 3/8"	Aluminum	140	±7 psi	4.4 to 174	8087T17	000000




										8 Stations

										C	1/4	1/4	65 scfm @ 100 psi	206	Yes	12 3/4"	4 7/8"	Aluminum	140	±7 psi	4.4 to 176	8087T14	000000


										C	1/2	1/2	230 scfm @ 100 psi	290	Yes	24 3/4"	7 3/8"	Aluminum	140	±7 psi	4.4 to 174	8087T18	000000

Festo Modular Compressed Air Filter/Regulator/Lubricators (FRLs)

Made up of a Festo filter, regulator, and lubricator, these FRLs provide clean, lubricated air at your required pressure. They connect to other Festo 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. The regulator is relieving, so it exhausts when the downstream pressure exceeds the set pressure. Slip a padlock through a hole in the knob to prevent unwanted pressure changes. Add a safety lockout valve to prevent accidental start-ups during maintenance and comply with OSHA lockout/tagout regulations.

Series No. 4—NPT Female Inlet and Outlet


Inline Components	Stacked Components

Inline Components—Inline FRLs are the standard design. Each part can be replaced or repaired on its own, which reduces maintenance costs.

Stacked Components—Stacked FRLs have a filter and regulator joined top-to-bottom and a lubricator on the side. They require less horizontal space than inline FRLs.

Joiner Clamps—Joiner clamps (sold separately) create compact, airtight connections between components that are easy to swap out. They come with mounting brackets to attach FRLs to a wall or equipment.

Compressed Air Filter/Regulator/Lubricators												Joiner Clamps		End Block Sets
	Pipe Size							Overall
Mfr. Series	Inlet	Outlet	Max. Flow Rate @ Pressure	Max. Pressure, psi	Removes Particle Size Down To, μm	Pressure Regulation Range, psi	Lubricant Cap., fl. oz.	Ht.	Wd.		Each		Each		Each







			Inline with Clear Polycarbonate Bowl and Automatic Drain

			MS4	1/4	1/4	65 scfm @ 100 psi	176	5	22 to 174	1	8"	4 3/4"	3291N11	0000000	3250T11	000000	3293N11	000000


			MS4	3/8	3/8	65 scfm @ 100 psi	176	5	22 to 174	1	8"	4 3/4"	3291N12	000000	3250T11	00000	3293N12	00000




					Stacked with Clear Polycarbonate Bowl and Automatic Drain

					MS4	1/4	1/4	65 scfm @ 100 psi	176	5	22 to 174	1	8"	3 1/4"	3291N16	000000	3250T11	00000	3293N11	00000


					MS4	3/8	3/8	65 scfm @ 100 psi	176	5	22 to 174	1	8"	3 1/8"	3291N17	000000	3250T11	00000	3293N12	00000

Replacements for Compressed Air Filter/Regulator/Lubricators

		Each
Replacement Filter Element for Series 4	4120T21	00000
Replacement O-Ring for Series 4	3053N11	0000
Replacement Filter Bowl for Series 4	3052N11	000000

Series No. 6—NPT Female Inlet and Outlet


Inline Components	Stacked Components

Inline Components—Inline FRLs are the standard design. Each part can be replaced or repaired on its own, which reduces maintenance costs.

Stacked Components—Stacked FRLs have a filter and regulator joined top-to-bottom and a lubricator on the side. They require less horizontal space than inline FRLs.

Compressed Air Filter/Regulator/Lubricators												Joiner Clamps		End Block Sets
	Pipe Size							Overall
Mfr. Series	Inlet	Outlet	Max. Flow Rate @ Pressure	Max. Pressure, psi	Removes Particle Size Down To, μm	Pressure Regulation Range, psi	Lubricant Cap., fl. oz.	Ht.	Wd.		Each		Each		Each







			Inline with Clear Polycarbonate Bowl and Automatic Drain

			MS6	1/2	1/2	130 scfm @ 100 psi	176	5	59 to 174	2.5	12"	7 3/8"	3291N13	0000000	3250T12	000000	3293N13	000000


			MS6	3/4	3/4	130 scfm @ 100 psi	176	5	59 to 174	2.5	12"	7 3/8"	3291N14	000000	3250T12	00000	3293N14	00000




					Stacked with Clear Polycarbonate Bowl and Automatic Drain

					MS6	1/2	1/2	130 scfm @ 100 psi	176	5	59 to 174	2.5	12"	7 3/8"	3291N18	000000	3250T12	00000	3293N13	00000


					MS6	3/4	3/4	130 scfm @ 100 psi	176	5	59 to 174	2.5	12"	7 3/8"	3291N19	000000	3250T12	00000	———	0

Replacements for Compressed Air Filter/Regulator/Lubricators

		Each
Replacement Filter Element for Series 6	4120T22	00000
Replacement O-Ring for Series 6	3053N12	0000
Replacement Filter Bowl for Series 6	3052N12	00000

Series No. 9—NPT Female Inlet and Outlet


Inline Components	Stacked Components

Inline Components—Inline FRLs are the standard design. Each part can be replaced or repaired on its own, which reduces maintenance costs.

Stacked Components—Stacked FRLs have a filter and regulator joined top-to-bottom and a lubricator on the side. They require less horizontal space than inline FRLs.

Compressed Air Filter/Regulator/Lubricators												Joiner Clamps		End Block Sets
	Pipe Size							Overall
Mfr. Series	Inlet	Outlet	Max. Flow Rate @ Pressure	Max. Pressure, psi	Removes Particle Size Down To, μm	Pressure Regulation Range, psi	Lubricant Cap., fl. oz.	Ht.	Wd.		Each		Each		Each







			Inline with Opaque Aluminum Bowl with Sight Glass and Automatic Drain

			MS9	1	1	560 scfm @ 100 psi	174	5	22 to 174	16.5	13 5/8"	8 1/4"	3291N15	0000000	3294N13	000000	3293N15	000000




					Stacked with Opaque Aluminum Bowl with Sight Glass and Automatic Drain

					MS9	1	1	560 scfm @ 100 psi	174	5	22 to 174	16.5	13 5/8"	8 1/4"	3291N21	000000	3294N13	00000	3293N15	00000

Replacements for Compressed Air Filter/Regulator/Lubricators

		Each
Replacement Filter Element for Series 9	3040N17	000000
Replacement O-Ring for Series 9	3053N13	0000

Corrosion-Resistant Compressed Air Filter/Regulators for Particle Removal

Opaque

Bowl

Built to resist corrosion, these filter/regulators withstand harsh environments that would cause standard filter/regulators to break down and fail. The filter and regulator are joined top-to-bottom, so they fit in the same space as a filter alone. They provide clean compressed air at your required pressure. The regulator is relieving, so it will exhaust when the downstream pressure exceeds the set pressure.

Stainless Steel Bowl—Stainless steel filter/regulators stand up to harsh chemicals and chlorides, so they're often used in facilities that manufacture semiconductors, chemicals, and paper. Their housing and bowl meet NACE (National Association of Corrosion Engineers) standards for performance in corrosive environments.

	Filter/Regulators													Elements
	Pipe Size								Overall
	Inlet	Outlet	Max. Flow Rate @ Pressure	Max. Pressure, psi	Pressure Adjustment	Pressure Regulation Range, psi	Removes Particle Size Down To, μm	Gauge Included	Wd.	Ht.	Specs. Met		Each		Each
NPT Female Inlet × NPT Female Outlet







				Stainless Steel Bowl—Opaque with Manual Drain

				1/4	1/4	65 scfm @ 100 psi	290	Screw	7.25 to 174	5	No	2 1/2"	9 7/8"	NACE MR0175/ISO 15156	3297N11	0000000	3297N13	000000


				1/2	1/2	130 scfm @ 100 psi	290	Screw	7.25 to 174	5	No	2 1/2"	9 7/8"	NACE MR0175/ISO 15156	3297N12	000000	3297N13	00000

Safety Lockout Valves for Festo Modular Compressed Air Filter/Regulator/Lubricators (FRLs)


Shown Installed

Prevent accidental start-ups while you service air preparation equipment. These lockout valves exhaust downstream pressure and can be locked in the shut-off position using a padlock. They help you comply with OSHA regulations for lockout/tagout procedures.

Joiner Clamps—Joiner clamps (sold separately) connect these valves to another Festo modular unit with the same series number. They create compact, airtight connections that are easy to swap out. These clamps come with mounting brackets to attach the valve to a wall or equipment.

	Safety Lockout Valves												Joiner Clamps
	Pipe Size							Overall
	Inlet	Outlet	Mfr. Series	Max. Flow Rate @ Pressure	Max. Pressure, psi	Max. Temp., ° F	Locking Mechanism Color	Ht.	Wd.	Features		Each		Each
NPT Female Inlet and Outlet







				For 4 Series

				1/4	1/4	MS4	65 scfm @ 100 psi	206	140	Blue	6"	1 5/8"	Silencer	3288N11	000000	3250T11	000000


				3/8	3/8	MS4	65 scfm @ 100 psi	206	140	Blue	6"	2"	Silencer	3288N12	00000	3250T11	00000




						For 6 Series

						1/2	1/2	MS6	130 scfm @ 100 psi	265	140	Blue	10 1/8"	2 1/2"	Silencer	3288N13	00000	3250T12	00000


						3/4	3/4	MS6	130 scfm @ 100 psi	265	140	Blue	10 1/8"	2 3/4"	Silencer	3288N14	00000	3250T12	00000




								For 9 Series

								1	1	MS9	560 scfm @ 100 psi	290	140	Blue	18 1/4"	3 1/2"	Silencer	3288N15	000000	3294N13	00000

Slow-Start Air-Exhaust Valves for Festo Modular Compressed Air Filter/Regulator/Lubricators (FRLs)

Image of Product. Back orientation. Air-Exhaust Valves. Slow-Start Air-Exhaust Valves for Festo Modular Compressed Air Filter/Regulator/Lubricators (FRLs).

Also known as Monday-morning valves, these valves slowly introduce pressure to reduce surge damage during start-up. When the solenoid is shut off, the valve cuts air to your equipment by exhausting downstream pressure. To ensure compatibility, the valve series number should match the series number on your Festo components.

Joiner Clamps—Connect valves to other Festo modular components with the same series number. These clamps come with mounting brackets.

	Valves															Joiner Clamps
		Pipe Size			Valve						Overall
	Mfr. Series	Inlet	Outlet	Exhaust	Type	Position	Max. Flow Rate @ Pressure	Max. Pressure, psi	Temp. Range, ° F	Voltage, V DC	Wd.	Ht.	Dp.		Each		Each
NPT Female Inlet, Outlet, and Exhaust







				6 Series

				MS6	1/2	1/2	3/4	Spool	Fail Closed	201 scfm @ 88 psi	145	35 to 140	24	2 7/16"	7"	3"	3289N13	0000000	3250T12	000000


				MS6	3/4	3/4	3/4	Spool	Fail Closed	201 scfm @ 88 psi	145	35 to 140	24	4 1/2"	7"	3"	3289N14	000000	3250T12	00000




						9 Series

						MS9	1	1	1	Spool	Fail Closed	581 scfm @ 88 psi	235	35 to 140	24	4 1/8"	10 11/16"	4 5/16"	3289N15	000000	3294N13	00000

Compressed Air Filter/Regulators for Particle Removal with Push-to-Connect Fittings

Image of Product. Front orientation. Compressed Air Filter/Regulators. Compressed Air Filter/Regulators for Particle Removal with Push-to-Connect Fittings.

Designed for quick installation on your air line, these filter/regulators don’t require pipe nipples or joiner clamps. Their push-to-connect fittings create airtight seals on tubing. A filter and regulator joined top-to-bottom, these filter/regulators provide clean, compressed air at the pressure you need. The regulator is relieving, so it will exhaust when the downstream pressure exceeds the set pressure.

Mounting Brackets—Mounting brackets (sold separately) allow you to attach the filter/regulator to a wall or equipment.

	Filter/Regulators										Elements		Mounting Brackets
	For Tube OD, mm						Overall
	Inlet	Outlet	Max. Flow Rate @ Pressure	Max. Pressure, psi	Pressure Regulation Range, psi	Removes Particle Size Down To, μm	Wd.	Ht.		Each		Each		Each
Polycarbonate Bowl—Clear with Manual Drain



		6	6	10.9 scfm @ 100 psi	116	8 to 101	5	1 1/4"	5"	8516N11	000000	4120T111	00000	8098N112	00000