15 AK Series Valves

8/3/2019 15 AK Series Valves

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AK

How to Order

Check Valve

Series AK

000 02N 2

Area Code

Nil

N

Japan, Asia,Australia, UK

U.S.A.

Body size

Port thread

Port size

246

NF

RcNPT

G

Nil

010203040610

AK2000AK2000, 4000AK4000AK4000AK6000AK6000

Port size Applicable series

Specifications

Fluid

Proof pressure

Maximum operating pressure

Minimum operating pressure

Ambient and fluid temperature

Air

1.5MPa

1MPa

0.02 MPa

-5 ° to 60 ° C (No freezing)

Air flow ( l /min (ANR)) Air flow [ l /min (ANR)]

Air flow [ l /min (ANR)] Air flow [ l /min (ANR)]

P r e s s u r e

d r o p

( M P a

)

P r e s s u r e

d r o p

( M P a

)

P r e s s u r e

d r o p

( M P a

)

P r e s s u r e

d r o p

( M P a

)

AK2000-01, -02 AK4000-02

AK4000-03, 04 AK6000-06, 10

Model

ModelEffective

area (mm ² )Port sizeWeight

(g)

AK2000-01

AK2000-02

AK4000-02

AK4000-03

AK4000-04

AK6000-06

AK6000-10

25

27.5

47

85

95

200

230

105

100

155

150

140

345

315

S u p p l y p r e s s u r e

High flow capacity

Low cracking pressure: 0.02MPaCompact and light weight

JIS symbol


Flow Characteristics

S u p p l y p

r e s s u r e


1/41/21

59

1/8

1/4

1/4

3/8

1/2

3/4

1

1/81/43/81/23/41

http://www.pneuaire.com/


http://www.coastpneumatics.com/americansmc/AS/14_ASV_Series_Flow_Controls.pdf

http://www.coastpneumatics.com/americansmc/AS/14_ASV_Series_Flow_Controls.pdf



http://www.poweraire.com/




Series A

Construction

Dimensions

Component parts

Replacement parts

No.

No.

Description

Description

Material

MaterialPart No.

AK2000 AK4000 AK6000

qw

e

rtyu

Valve

Spring

O-ring

Ring

Seat ring

Cover

Body

POM

Stainless steel

NBR

NBR

Brass, NBR

Aluminum die casted Note 1)

Aluminum die casted Note 1)

19033

19037

19014

19015

19016

19013

19024

19025

19026

19023

20 x 17 x 1.5

Note 1) AK2000: Zinc alloy

AK2000 AK4000/6000

Model Port size L1 HBAK2000-01, 02AK4000-02, 03, 04AK6000-06, 10

506795

253650

223650

Caution

1/8, 1/41/4, 3/8, 1/2

3/4, 1

Read carefully before handling.Refer to page 64 and 65 for Safety Instructions and common precautionson the products mentioned in this catalog, refer to page 66 through 68 forprecautions for every series.

IN OUT IN OUT

IN OUT

H

BL1










ASS

How to Order

Slow Start Co ntrol Valv e

Series ASSMeter-out Type

00 02N 3

Area Code

Nil

N

Japan, Asia,Australia, UK ∗

U.S.A.

Body sizePort thread

Port size

Meter-out control type:A control valve with cylinder speedcontrol function, fixed throttle, and rapid

air supply function

Meter-in-control type:A control valve with cylinder speedcontrol function and rapid air supplyfunction

61

∗Special order only

13

56

1/83/8

3/41

B

S.S.C. valve

Meter-out type

Nil

NF

Rc

NPTG

Applicable seriesPort size010203040610

ASS100, 110ASS300, 310ASS300, 310

ASS500ASS500, 600

ASS600

1/81/43/81/23/41

B

AccessoryNil Without bracket

With bracket

Fluid

Maximum operating pressure

Ambient and fluid temperature

Setting pressure

SpecificationsAir

0.7MPa

–5 ° to 60 ° C (No freezing)

0.1 to 0.5MPa

Model

Model

Type

Meter-outcontrol

Meter-incontrol

ASS100

ASS300

ASS500

ASS600

ASS110

ASS310

Port sizeEffective area (mm ² ) Weight

(g)Free flowControlled flow

2.4

14.5

52.0

80.0

2.4

16.5

97

220

580

950

97

220

9.5

22.0

55.0

90.0

5.4

23.0

1/8

1/4, 3/8

1/2, 3/4

3/4, 1

1/8

1/4, 3/8

Caution

Be sure to read before handling.Refer to page 64 and 65 for Safety Instructions and common precautions onthe products mentioned in this catalog, and page 66 through 68 forprecautions on every series.

PAT.PEND











Series ASS

Prevents accidents caused by thecylinder rod sudden extensions

Syste m circuit

Meter-out Graph/Pressure to time Meter-in Graph/Pressure to time

If pressure is applied only to one side ofthe cylinder, the rod could get out ofcontrol, leading to accidents that couldinvolve injury to humans or damage tothe product or jigs. The meter-out typeSSC valve prevents the suddenextensions by effecting meter-in controlwhen there is no pressure, and resumesthe ordinary meter-out control after thecylinder has been pressurized. With themeter-in type, there is no risk of suddenextensions because the cylinder speedis constantly under meter-in control.

During the operating stroke at initial actuation, thecylinder moves at a slow speed from A to B due to thefixed throttle of the SSC valve. When it reaches B, thehead pressure (PH) rises quickly as indicated by the linefrom C to D. Therefore, there is no time loss associatedwith the pressure transmission lag indicated by the linefrom C to E, as in the case of meter-in control that iseffected through the use of a speed controller. Duringnormal operation after the cylinder has beenpressurized, the cylinder's speed control is effected bythe ordinary meter-out control.

Due to meter-in control, the cylinder moves from A to Bregardless of whether it is an initial operation or anormal operation. When it reaches B, the head pressure(PH) rises quickly as indicated by the line from C to D.Therefore, there is no time loss associated with thepressure transmission lag indicated by the line from C toE, as in the case of meter-in control that is effectedthrough the use of a speed controller. During normaloperation after the cylinder has been pressurized, thecylinder's speed control is effected also by the ordinarymeter-in control.

M o v e m e n

t

o f

t h

e c y l i n

d e r

b y s p e e d control valve

M o v e m e n t o f t h e c y l i n d e r b y f i x e d t h r o t t l e v a l v e

M o v e m e n t o

f t h e c y l i n d e

r

b y m

e t e r c o n t r o l

P H

PR (Atmospheric pressure)Delay in pressure transmisPR(Atmospheric pressure)Delay in pressure transmission

M o v e m e n t o f t h e c y l i n d e r

M o v e m e n t o f t h e c y l i n d e r

M o v e m

e n t o

f t h e c y l i n d

e r

M o v e m

e n t o

f t h e c y l i n d

e r

P r e s s u r e

S t r o k e

P r e s s u r e

S t r o k e

P r e s s

u r e

S t r o k e

P r e s s

u r e

S t r o k e

P r e s s u r e

S t r o k e

P r e s s u r e

S t r o k e











Series ASS

63

Flow Characteristics Cylider Extension Prevention Primary Sp

Conditions: Supply pressure at 0.5MPa, No load∗ Primary speed of meter-in type can be controlled

as likely as during normal operation.

ASS100/ASS110

Supply pressure: 0.5MPaSupply pressure: 0.5MPa

Supply pressure: 0.5MPaSupply pressure: 0.5MPa

Supply pressure: 0.5MPa

E f f e c t i v e a r e a

( m m

² )


( m m

² )


( m m

² )


( m m

² )


( m m

² )

F l o w

[ l

/ m i n ( A N R ) ]

F l o w

[ l / m

i n ( A N R ) ]

F l o w

[ l / m

i n ( A N R ) ]

F l o w

[ l / m i n ( A N R ) ]

F l o w

[ l / m i n ( A N R ) ]

Needle rotation (turns)

Needle rotation (turns) Needle rotation (turns)



2.5

2.5

2.0

2.0

1.5

1.5

1.0

1.0

0.5

0.5

0

0

0

0

2

2

2

2

2

24

4

4

4

6

6

6

6

8

8

8

10 0 0

0

0

0

50

100

150

4

4

6

6

8

8

8

10

10

10

10

10

10

12

12

12

12

14

14

14

200

400

600

800

1,000

P r i m a r y s p e e

d ( m m

/ s )

0

50

50

50

100

150

200

250

20

20

20

20

2530

30

30

40

40

40

40

50 63 80

80

80

100

100

200 300

Cylinder bore size (mm)

ASS300

ASS310 ASS500

ASS600

60

60

60

120

140

160

500

1,000

1,000

1,500

2,000

2,000

3,000

3,000

3,500

4,000

4,000

2,500

705,000

Meter-out control

M a x .

1 6

. 5

1 0 0 0 l / m i n ( A N R )










Series ASS

Fig. D

Fig. D

Fig. C

Fig. C

Fig. B

Fig. B

Fig A

Fig. A

During primary operation(Piston rod extension prevention)

Setting pressure forpiston valve

Pressurein the cylinder


During primary operation(Piston rod extension prevention)

During normal operation

During normal operation

Meter-out Control/Operation Principles

Meter-in Control/Operation Principles

When air is supplied to the exhausted cylinder, the air causes the valve to close.Also, because the piston valve is fully closed due to the cylinder's low internalpressure, air is supplied gradually through the piston valve and the fixed throttle ofthe check valve. Therefore, the cylinder operates slowly under meter-in control.

As the piston moves and reaches the end of its stroke, the internal pressure in thecylinder rises. When this pressure becomes higher than the set pressure of thepiston valve, the piston valve opens fully. Then, the air from the switching valvefeeds rapidly into the cylinder by opening the check valve.

When air is supplied to the exhausted cylinder, the air causes the check valve toclose. Also, because the piston valve is fully closed due to the cylinder's low internalpressure, air is supplied gradually via the throttle of the set needle. Therefore, thecylinder operates slowly under meter-in control.

As the piston moves and reaches the end of its stroke, the internal pressure in thecylinder rises. When this pressure becomes higher than the set pressure of thepiston valve, the piston valve opens fully. Then, the air from the switching valvefeeds rapidly into the cylinder.

Because the pressure in the cylinder is higher than the set pressure, the air from theswitching valve causes the piston valve to open fully and feeds rapidly into thecylinder by opening the check valve. Therefore, meter-out control of the cylinderspeed is effected by the speed control valve in the exhaust conduit, regardless ofthe state of the SSC valve.

Because the check valve closes due to the internal pressure of the cylinder, the airin the cylinder passes through the valve and discharges through the switching valve.Thus, meter-out control of the cylinder speed is effected by the opening of the valve,which is adjusted by the set needle.

The air that has been supplied by the switching valve closes the check valve. Also,because the cylinder's internal pressure is lower than the set pressure, the pistonvalve closes fully, causing the air to be supplied gradually via the throttle of the setneedle. Therefore, meter-out control of the cylinder speed is effected by the SSCvalve, regardless of the state of the speed control valve in the exhaust conduit of the

cylinder (Fig. C). Also, as the piston moves and reaches the end of its stroke, theinternal pressure in the cylinder rises, causing the piston valve to open fully, and theair feeds rapidly into the cylinder (Fig. B).

The air in the cylinder initially opens the piston valve and the check valve anddischarges rapidly through the switching valve. The fully opened piston valve closesas shown in Fig. D when the pressure in the cylinder is lower than the set pressure.Then the air passes through the check valve and becomes discharged (Fig. D).Thus, meter-in control of the cylinder speed is effected by the speed control valve ofthe supply conduit.

> < Pressurein the cylinder


Pressurein the cylinder

Setting pressure forpiston valve> < Pressure

in the cylinder

<Stroke end>

<Stroke end>





15 AK Series Valves

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