Filter Regulator AW20 to 60-B, Filter Regulator With Backflow Function AW20K to 60K-B

Brand :

SMC

Caution

Refer to the catalog for details on product specifications.
The products shown in the image are representative. CAD data is not supported for some model numbers.

Product Description

Filter regulators and filter regulators with backflow function, with both filter and regulator integrated in one unit.
[Features]
· Helps save on space, and requires less piping.

Filter Regulator AW20-B To AW60-B And Filter Regulator With Backflow Function AW20K-B To AW60K-B Details

AW20-B/AW20K-B: product images

AW40-B/AW40K-B: product images

Filter Regulator AW20-B To AW60-B And Filter Regulator With Backflow Function AW20K-B To AW60K-B Specifications

Model	AW20-B	AW30-B	AW40-B	AW40-06-B	AW60-B
Piping connection port diameter	1/8, 1/4	1/4, 3/8	1/4, 3/8, 1/2	3/4	3/4, 1
Pressure gauge connection port size ^{Note 1)}	1/8
Applicable fluids	Air
Ambient temperature and working fluid temperature ^{Note 2)}	-5 to 60°C (no freezing)
Proof pressure	1.5 MPa
Maximum operating pressure	1.0 MPa
Set pressure range	0.05 to 0.85 MPa
Filtration	5 mm
Drain capacity (cm³)	8	25	45
Case materials	Polycarbonate
Bowl guard	Semi-standard (steel)	Standard equipment (polycarbonate)
Structure	Relieving type
Weight (kg)	0.20	0.36	0.66	0.72	2.05

Note 1) For the specification with the square embedded type pressure gauge and the specification with the digital pressure switch, there are no pressure gauge connection screws.
Note 2) With a digital pressure switch: −5 to 50°C.

Options / Part No.

Option specification			PNP output / Wiring top entry
Option specification			AW20(K)-B	AW30(K)-B	AW40(K)-B	AW40(K)-06-B	AW60(K)-B
Bracket assembly ^{Note 1)}			AW23P-270AS	AR33P-270AS	AR43P-270AS		AW62P-270AS
Set nut			AR23P-260S	AR33P-260S	AR43P-260S		-^{Note 2)}
Pressure gauge	Round-type ^{Note 3)}	Standard	G36-10-□01		G46-10-□01
	Round-type ^{Note 3)}	0.02 to 0.2‑MPa setting	G36-4-□01		G46-4-□01
	Round-type ^{Note 3)} (with color zone)	Standard	G36-10-□01-L		G46-10-□01-L
	Round-type ^{Note 3)} (with color zone)	0.02 to 0.2‑MPa setting	G36-4-□01-L		G46-4-□01-L
	Square ^{Note 4)} embedded type	Standard	GC3-10AS [GC3P-010AS (pressure gauge cover only)]
	Square ^{Note 4)} embedded type	0.02 to 0.2‑MPa setting	GC3-4AS [GC3P-010AS (pressure gauge cover only)]
Digital pressure switch ^{Note 5)}		NPN output / Wiring bottom entry	ISE35-N-25-MLA [ISE35-N-25-M (main switch unit only)]
		NPN output / Wiring top entry	ISE35-R-25-MLA [ISE35-R-25-M (main switch unit only)]
		PNP output / Wiring bottom entry	ISE35-N-65-MLA [ISE35-N-65-M (main switch unit only)]
		PNP output / Wiring top entry	ISE35-R-65-MLA [ISE35-R-65-M (main switch unit only)]

Note 1) Assembly of a bracket and set nuts.
　The AW60(K)-B has mounting screws (2 pcs.) included.
Note 2) Consult separately with the manufacturer regarding the set nuts for the AW60(K)-B.
Note 3) The □ in the part numbers for round-type pressure gauges indicates the connection thread type.
　Insert no symbol for Rc, and use "N" for NPT.
　Contact the manufacturer regarding the supply of psi unit specification pressure gauges.
Note 4) Including O-ring (1 pc.) and mounting screws (2 pcs.).
　[ ]: Pressure gauge cover only.
Note 5) In addition to the pressure switch, it also includes a lead wire with connector (2 m), adapter, lock pin, O-ring (1 pc.) and mounting screws (2 pcs.).
　[ ]: Switch unit only.
　If mounting a pressure switch to the AW60(K)-B, a separate special mounting adapter (pressure switch adapter assembly: AW63P-310AS),
and special mounting screws (M3 × 0.5 × 14) (delivered together with the mounting adapter) are required.

Bowl assembly / Part number

Case materials	Drain discharge mechanism	Drain exhaust port	Other	Model
Case materials	Drain discharge mechanism	Drain exhaust port	Other	AW20-B	AW30-B	AW40-B	AW40-06-B	AW60-B
Polycarbo -nate	Manual discharge	With drain cock	-	C2SF-A	-	-
		With drain cock	With bowl guard	C2SF-C-A	C3SF-A	C4SF-A
		Drain cock, with barb fitting	With bowl guard	-	C3SF-W-A	C4SF-W-A
		With drain guide (without valve function)	-	C2SF□-J-A	-	-
		With drain guide (without valve function)	With bowl guard	C2SF□-CJ-A	C3SF□-J-A	C4SF□-J-A
	Automatic discharge ^Note) (auto drain)	Normally closed (N.C.)	-	AD27-A	-	-
		Normally closed (N.C.)	With bowl guard	AD27-C-A	AD37□-A	AD47□-A
		Normally open (N.O.)	With bowl guard	-	AD38□-A	AD48□-A
Nylon	Manual discharge	With drain cock	-	C2SF-6-A	-	-
		With drain cock	With bowl guard	C2SF-6C-A	C3SF-6-A	C4SF-6-A
		Drain cock, with barb fitting	With bowl guard	-	C3SF-6W-A	C4SF-6W-A
		With drain guide (without valve function)	-	C2SF□-6J-A	-	-
		With drain guide (without valve function)	With bowl guard	C2SF□-6CJ-A	C3SF□-6J-A	C4SF□-6J-A
	Automatic discharge ^Note) (auto drain)	Normally closed (N.C.)	-	AD27-6-A	-	-
		Normally closed (N.C.)	With bowl guard	AD27-6C-A	AD37□-6-A	AD47□-6-A
		Normally open (N.O.)	With bowl guard	-	AD38□-6-A	AD48□-6-A
Metal	Manual discharge	With drain cock	-	C2SF-2-A	C3SF-2-A	C4SF-2-A
		With drain cock	With level gauge	-	C3LF-8-A	C4LF-8-A
		With drain guide (without valve function)	-	C2SF□-2J-A	C3SF□-2J-A	C4SF□-2J-A
		With drain guide (without valve function)	With level gauge	-	C3LF□-8J-A	C4LF□-8J-A
	Automatic discharge ^Note) (auto drain)	Normally closed (N.C.)	-	AD27-2-A	AD37□-2-A	AD47□-2-A
		Normally closed (N.C.)	With level gauge	-	AD37□-8-A	AD47□-8-A
		Normally open (N.O.)	-	-	AD38□-2-A	AD48□-2-A
		Normally open (N.O.)	With level gauge	-	AD38□-8-A	AD48□-8-A

Note) Minimum operating pressure - N.O. Type: 0.1 MPa (AD38-A, AD48-A); N.C. Type: 0.1 MPa (AD27-A), and 0.15 MPa (AD37-A, AD47-A).
　The bowl assembly comes with a bowl seal. The □ in the bowl assembly part number indicates a tubing thread type (applicable tubing for an auto drain).
　No indication is necessary for Rc thread; however, indicate N for NPT thread, and F for G thread. (For auto drain, Nil: ø10 [diameter 10 mm]; N: ø3/8 [diameter 3/8]")
Please consult with manufacturer separately regarding psi and °F unit display specifications.

Model Number Notation

Model number example

-				Code	Contents	(1)
						Body size
						20	30	40	60
(2)	With backflow function			No symbol	Without backflow function	●	●	●	●
(2)	With backflow function			K ^{Note 1)}	With backflow function	●	●	●	●
(3)	Screw Type			No symbol	Rc	●	●	●	●
				N ^{Note 2)}	NPT	●	●	●	●
				F ^{Note 3)}	G	●	●	●	●
(4)	Piping connection port diameter			01	1/8	●	-	-	-
				02	1/4	●	●	●	-
				03	3/8	-	●	●	-
				04	1/2	-	-	●	-
				06	3/4	-	-	●	●
				10	1	-	-	-	●
(5)	^{Note 4)} Option	a	Mounting	No symbol	Without optional mounting parts	●	●	●	●
				B ^{Note 5)}	With Bracket	●	●	●	●
				H	With set nut (for panel mount)	●	●	●	-
		b	Float type auto drain	No symbol	Without auto drain	●	●	●	●
				C ^{Note 6)}	N.C. (Normally Closed) Drain port is closed when no pressure is applied	●	●	●	●
				D ^{Note 7)}	N.O. (Normally Open) Drain port is open when no pressure is applied	-	●	●	●
		c	Pressure gauge ^{Note 8)}	No symbol	Without pressure gauge	●	●	●	●
				E	Square embedded-type pressure gauge (with limit indicator)	●	●	●	●
				G	Round-type pressure gauge (with limit indicator)	●	●	●	●
				M	Round-type pressure gauge (with color zone)	●	●	●	●
			Digital ^{Note 9)} Pressure switch	E1	Output: NPN output / Lead wire electrical entry: wiring bottom entry	●	●	●	●
				E2	Output: NPN output / Lead wire electrical entry: wiring top entry	●	●	●	●
				E3	Output: PNP output / Lead wire electrical entry: wiring bottom entry	●	●	●	●
				E4	Output: PNP output / Lead wire electrical entry: wiring top entry	●	●	●	●
(6)	Semi-standard	d	Set pressure ^{Note 10)}	No symbol	0.05 to 0.85‑MPa setting	●	●	●	●
		d	Set pressure ^{Note 10)}	1	0.02 to 0.2‑MPa setting	●	●	●	●
		e	Case	No symbol	Polycarbonate bowl	●	●	●	●
				2	Metal bowl	●	●	●	●
				6	Nylon bowl	●	●	●	●
				8	Metal bowl with level gauge	-	●	●	●
				C	With bowl guard	●	-^{Note 12)}	-^{Note 12)}	-^{Note 12)}
				6C	With bowl guard (nylon bowl)	●	-^{Note 13)}	-^{Note 13)}	-^{Note 13)}
		f	Drain port ^{Note 14)}	No symbol	With drain cock	●	●	●	●
				J ^{Note 15)}	Drain guide 1/8	●	-	-	-
				J ^{Note 15)}	Drain guide 1/4	-	●	●	●
				W ^{Note 16)}	Drain cock with barb fitting	-	●	●	●

-				Code	Contents	(1)
						Body size
						20	30	40	60
(6)	Semi-standard	g	Exhaust mechanism	No symbol	Relieving type	●	●	●	●
		g	Exhaust mechanism	N	Non-relieving type	●	●	●	●
		h	Flow direction	No symbol	Flow direction: left → right	●	●	●	●
		h	Flow direction	R	Flow direction: right → left	●	●	●	●
		i	Pressure unit	No symbol	Name plate, bowl caution plate and pressure gauge units: MPa	●	●	●	●
				Z ^{Note 17)}	Name plate, bowl caution plate and pressure gauge units: psi, °F	○ ^{Note 19)}	○ ^{Note 19)}	○ ^{Note 19)}	○ ^{Note 19)}
				ZA ^{Note 18)}	Digital pressure switch: with unit selection function	△ ^{Note 20)}	△ ^{Note 20)}	△ ^{Note 20)}	△ ^{Note 20)}

Note 1) Set the inlet pressure to at least 0.05‑MPa higher than the set pressure.
Note 2) Drain guide is NPT1/8 (applicable to the AW20(K)-B); and NPT1/4 (applicable to the AW30(K)-B to AW60(K)-B). The auto drain port comes with ø3/8" one-touch fitting (applicable to the AW30(K)-B to AW60(K)-B).
Note 3) Drain guide is G1/8 (applicable to the AW20(K)-B); and G1/4 (applicable to the AW30(K)-B to AW60(K)-B).
Note 4) Options B, G, H, M are not assembled and are supplied loose at the time of shipment.
Note 5) Set nuts are included with the bracket. (Applicable to the AW20(K)-B to AW40(K)-B). The AW60(K)-B has mounting screws (2 pcs.) included.
Note 6) When pressure is not applied, condensate which does not start the auto drain mechanism will remain in the drain bowl. Therefore manual release before ending operations is recommended.
Note 7) If the compressor used is small (0.75 kW, discharge flow rate is less than 100 L/min [ANR]), air leakage from the drain cock may occur when operations start. As such an N.C. type is recommended.
Note 8) When the pressure gauge is attached, a 1.0‑MPa specification will be fitted for standard (0.85‑MPa setting) type; 0.4 MPa for the 0.2‑MPa type.
Note 9) When choosing with H (panel mount), the installation space for lead wires will not be secured. In this case, select "wiring top entry" for the electrical entry.
Note 10) Pressure can be set higher than the specification pressure in some cases, but use with the pressure within the specified range.
Note 11) For chemical resistance of the bowl, refer to the table below "Effects of atmosphere of organic solvents and chemicals and where these elements are likely to adhere to the equipment. Chemical data for substances causing degradation (Reference)."
Note 12) A bowl guard is provided as standard (polycarbonate).
Note 13) A bowl guard is provided as standard (nylon).
Note 14) Float type auto drain: Cannot be selected in combination with C, D.
Note 15) Does not include a valve function.
Note 16) Metal bowl: Cannot be selected in combination with 2, 8.
Note 17) Thread type: NPT is applicable. Under new Japanese measurement laws, this product is only available for sale outside of Japan (SI units are used in Japan). Round-type pressure gauge (with color zone): cannot be used in combination with M. Available on request as separate, special order. The digital pressure switch, which has the unit selection function, has an default setting of psi.
Note 18) Options: E1, E2, E3, E4. Under new Japanese measurement laws, this product is only available for sale outside of Japan (SI units are used in Japan).
Note 19) ○ is for thread type NPT only.
Note 20) △: Combination available for options E1, E2, E3, E4.

Effects of atmosphere of organic solvents and chemicals and where these elements are likely to adhere to the equipment. Chemical data for substances causing degradation (Reference)

Type	Chemical name	Application examples	Materials
Type	Chemical name	Application examples	Polycarbonate	Nylon
Acid	Hydrochloric acid Sulfuric acid, Phosphoric acid Chromic acid	Acid washing liquid for metals	Possible use	×
Alkaline	Sodium hydroxide (caustic soda) Potassium hydroxide Calcium hydroxide Ammonia water Sodium carbonate	Degreasing of metals Industrial salts Water-soluble cutting oil	×	○
Inorganic salts	Sodium sulfide Potassium nitrate Sodium sulfate	-	×	Possible use
Chlorinated solvents	Carbon tetrachloride Chloroform Ethylene chloride Methylene chloride	Cleansing liquid for metals Printing ink Dilution	×	Possible use
Aromatic series	Benzene Toluene Paint thinner	Coatings Dry cleaning	×	Possible use
Ketone	Acetone Methyl ethyl ketone Cyclohexane	Photographic film Dry cleaning Textile industries	×	×
Alcohol	Ethyl alcohol IPA Methyl alcohol	Antifreeze Adhesive	Possible use	×
Oil	Gasoline Kerosene	-	×	○
Ester	Phthalic acid dimethyl Phthalic acid diethyl Acetic acid	Synthetic oil Anti-rust additives	×	○
Ether	Methyl ether Ethyl ether	Brake oil additives	×	○
Amino	Methyl amino	Cutting oil Brake oil additives Rubber accelerator	×	×
Other	Thread-lock fluid Seawater Leak tester	-	×	Possible use

○: Essentially safe △: Some effects may occur ×: Effects will occur

*When the above factors are present, or if there is some doubt, use a metal bowl for safety.

Structural Drawings

AW20(K)-B: structural drawings

AW30(K)-B/AW40(K)-B: structural drawings

AW60(K)-B: structural drawings

AW20K-B to AW60K-B (Filter Regulator With Backflow Function): structural drawings

Component Parts

Number	Part name	Materials	Model	Additional notes
1	Body	Die-cast aluminum	AW20-B AW60-B	Urban white
2	Bonnet	Polyacetal	AW20-B to AW40-B	Urban white
2	Bonnet	Die-cast aluminum	AW60-B	Urban white
3	Housing	Die-cast aluminum	AW60-B	Urban white

Replacement Parts

Number	Part name	Materials	Part number
Number	Part name	Materials	AW20(K)-B	AW30(K)-B	AW40(K)-B	AW40(K)-06-B	AW60(K)-B
4	Valve assembly	Brass, HNBR	AW20P-340AS	AW30P-340AS	AW40P-340AS		AW60P-090AS
5	Filter element	Non‐woven fabric	AF20P-060S	AF30P-060S	AF40P-060S		AW60P-060S
6	Diaphragm assembly	Weatherable NBR	AR20P-150AS	AR30P-150AS	AR40P-150AS		AR50P-150AS
7	Bowl seal	NBR	C2SFP-260S	C32FP-260S	C42FP-260S
8	Bowl assembly ^{Note 1)}	Polycarbonate	C2SF-A	C3SF-A^{Note 2)}	C4SF-A^{Note 2)}
9	Check valve assembly ^{Note 3)}	-	AR23KP-020AS

Note 1) The bowl assembly includes a bowl O-ring. Contact the manufacturer separately for psi, °F unit display specifications.
Note 2) Bowl assembly for the AW30(K)-B to AW60(K)-B models comes with a bowl guard (made of polycarbonate).
Note 3) Check valve assembly is applicable only for specifications with the backflow function (AW20(K)-B to AW60(K)-B). Assembly consisting of a check valve cover, check valve body and mounting screws (2 pcs.).

Filter Regulator AW20-B To AW60-B And Filter Regulator With Backflow Function AW20K-B To AW60K-B Dimensions

AW20(K)-B

(Unit: mm)

AW20(K)-B: dimensional drawings

AW30(K)-B to AW40(K)-06-B

(Unit: mm)

AW30(K)-B to AW40(K)-06-B: dimensional drawing

AW60(K)-B

(Unit: mm)

AW60(K)-B: dimensional drawing

(Unit: mm)

Option	Square embedded type pressure gauge	Digital pressure switch	Round-type pressure gauge	Round-type pressure gauge (with color zone)

Compatible models	AW20(K)-B		AW20(K)-B		AW30(K)-B to AW60(K)-B
Option / Semi-standard specifications	With auto-drain (N.C.)	Metal bowl	With drain guide	Metal bowl with drain guide	With auto-drain (N.O./N.C.)

Compatible models	AW30(K)-B to AW60(K)-B
Option / Semi-standard specifications	Metal bowl	Metal bowl with drain guide	Metal bowl with level gauge	Metal bowl with drain guide with level gauge	With drain guide	Drain cock with barb fitting

(Unit: mm)

Model	Standard specification
	Standard specification
	P₁	P₂	A	B	C ^Note)	D	E	F	G	J	K
AW20(K)-B	1/8, 1/4	1/8	40	87.6	72.4	26	-	M28 × 1	40	26	5
AW30(K)-B	1/4, 3/8	1/8	53	115.1	85.6	29.4	30	M38 × 1.5	55	29.4	3.5
AW40(K)-B	1/4, 3/8, 1/2	1/8	70	147.1	91.7	37.3	38.4	M42 × 1.5	80	37.3	1.5
AW40(K)-06-B	3/4	1/8	75	149.1	93.2	37.3	38.4	M42 × 1.5	80	37.3	1.2
AW60(K)-B	3/4, 1	1/8	95	234.1	175.5	43.3	47.5	-	30	43.3	3.2

Model	Option specification
	Square type pressure gauge		Digital pressure switch		Round-type pressure gauge		Round-type pressure gauge (with color zone)
	H	J	H	J	H	J	H	J
AW20(K)-B	□28	27	□27.8	37.5	ø37.5 (diameter 37.5 mm)	62.5	ø37.5 (diameter 37.5 mm)	63.5
AW30(K)-B	□28	30.4	□27.8	40.9	ø37.5 (diameter 37.5 mm)	65.9	ø37.5 (diameter 37.5 mm)	66.9
AW40(K)-B	□28	38.3	□27.8	48.8	ø42.5 (diameter 42.5 mm)	74.8	ø42.5 (diameter 42.5 mm)	74.8
AW40(K)-06-B	□28	38.3	□27.8	48.8	ø42.5 (diameter 42.5 mm)	74.8	ø42.5 (diameter 42.5 mm)	74.8
AW60(K)-B	□28	44.3	□27.8	61.3	ø42.5 (diameter 42.5 mm)	80.8	ø42.5 (diameter 42.5 mm)	80.8

Model	Option specification
	Bracket mounting dimensions							Panel mount				With auto drain
	M	N	Q	R	S	T	U	V	W	Y	Z	B
AW20(K)-B	30	34	43.9	5.4	15.4	55	2.3	29.7	28.5	14	6	104.9
AW30(K)-B	41	40	45.8	6.5	8	53	2.3	31.1	38.5	19	7	156.8
AW40(K)-B	50	54	54	8.5	10.5	70	2.3	35.5	42.5	21	7	186.9
AW40(K)-06-B	50	54	55.5	8.5	10.5	70	2.3	37	42.5	21	7	188.9
AW60(K)-B	70	66	65.8	11	13	90	3.2	-	-	-	-	273.9

Model	Semi-standard specifications
	With barb fittings	With drain guide	Metal bowl	Metal bowl with drain guide	Metal bowl with level gauge	Metal bowl with level gauge with drain guide
	B	B	B	B	B	B
AW20(K)-B	-	91.4	87.4	93.9	-	-
AW30(K)-B	123.6	121.9	117.6	122.1	137.6	142.1
AW40(K)-B	155.6	153.9	149.6	154.1	169.6	174.1
AW40(K)-06-B	157.6	155.9	151.6	156.1	171.6	176.1
AW60(K)-B	240.9	242.6	236.6	241.1	256.6	261.1

Note) The dimension C is the length when the filter regulator knob (handle) is unlocked.