Brochure

3
Brass
Electroless
nickel plating
1
Elbow
Note) Use caution at the max. operating pressure when using soft nylon or polyurethane tubing.
(Refer to the WEB catalog or Best Pneumatics No. 6 for details.)
RoHS
Speed Controller with Indicator/
Elbow Type
Series AS-FS
Flow Direction Symbol on Body
Caution
Note 1) 10-32UNF has the same specifi cation as M5.
Note 2) C and b values are for controlled fl ow with the needle fully open and free fl ow with the needle
fully closed.
Be sure to read this before handling.
Refer to the back cover for Safety In-
structions. For Flow Control Equip-
ment Precautions, refer to “Handling
Precautions for SMC Products” and
the Operation Manual on SMC web-
site, http://www.smcworld.com
Note 1) “Without sealant” type can be selected as a standard option.
Note 2) Only polyurethane tubing is applicable for ø2.
Note 3) There are differences in actual rate as by the indicator window over the maximum number of rotations depending on the individual product.
Model
AS121FS-M5
AS221FS-01 AS221FS-02 AS321FS
AS421FS
Tubing
O.D.
Metric
size
ø2
ø3.2
ø4
ø6
ø3.2 ø4
ø6
ø8
ø10
ø3.2 ø4 ø6
ø8
ø10
ø6 ø8
ø10
ø12
ø10
ø12
ø16
Inch
size
ø1/8"
ø1/4"
ø5/32"
ø1/8"
ø5/32"
ø1/4"
ø5/16"
ø1/8"
ø5/32"
ø1/4"
ø5/16"
ø3/8"
ø1/4"
ø5/16"
ø3/8" ø3/8" ø1/2"
C values:
Sonic
conductance
dm
3
/(s·bar)
Free
fl o w
0.2 0.3 0.4 0.6 0.6 0.7 1.0 1.3 1.5 1.6 1.7 2.5 4.4 4.8
Controlled
fl o w
0.2 0.3 0.4 0.7 0.8 0.6 0.9 1.3 2.1 2.4 3.3 4.4 4.9
b values:
Critical
pressure
ratio
Free
fl o w
0.3 0.4 0.2 0.3 0.3 0.4 0.4 0.3 0.3
Controlled
fl o w
0.2 0.2 0.3 0.3 0.3 0.3
Model
Port size Seal method
Applicable tubing O.D.
Note 3)
Max.
number of
rotations
Metric size Inch size
Elbow type
2
Note 2)
3.2 4 6 8 10 12 16 1/8"
5/32"
1/4"
5/16"
3/8" 1/2"
AS121FS-M5
M5 x 0.8
Gasket seal
앬앬앬앬 앬앬앬
8
AS121FS-U10/32
10-32UNF
앬앬앬앬 앬앬앬
AS221FS-01
R
NPT
1/8
Note 1)
Sealant
앬앬앬앬앬 앬앬앬앬
10
AS221FS-02
1/4
앬앬앬앬앬 앬앬앬앬앬
AS321FS-02
1/4
앬앬앬앬 앬앬앬
AS321FS-03
3/8
앬앬앬앬 앬앬앬
AS421FS-04
1/2
앬앬앬 앬앬
AS221FS-G01
G
1/8
Face seal
앬앬앬앬앬
AS221FS-G02
1/4
앬앬앬앬앬
AS321FS-G02
1/4
앬앬앬앬
AS321FS-G03
3/8
앬앬앬앬
AS421FS-G04
1/2
앬앬앬
Meter-out Meter-in
Symbol
Fluid Air
Proof pressure 1.5 MPa
Max. operating pressure 1 MPa
Min. operating pressure 0.1 MPa
Ambient and fluid temperature −5 to 60°C (No freezing)
Applicable tubing material Nylon, Soft nylon, Polyurethane
Note)
, FEP, PFA
Model
Specifi cations
Flow-rate and Sonic Conductance