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Page 1

Power Valve Precision Regulator

Series VEX1

3

0 3

High precision, large capacity relief regulator

ARJ AR425

A 3 port large exhaust capacity pressure reducing valve which utilizes a nozzle flapper mechanism available as air to 935 operated or manual styles.

AMR

Precise pressure setting

High precision

ARM

Having a relief Cv value that is similar to the supply Cv value, this regulator responds quickly in order to set a precise outlet pressure even when the outlet volume and the pressure fluctuations are large.

This regulator is well-suited for balancer applications because it minimizes pressure fluctuations with its large-volume supply/exhaust capability, in addition it features high precision F.S. (full span) sensitivity within 0.2% and F.S. repeatability of ±0.5%.

ARP IR IRV

Manifold capable VVEXB 1/8—Up to 10 stations VVEX2 1/4—Up to 8 stations

Rich line-up

VEX1

Port sizes available from M5 to 2 inches, most flow rates and pipes can be accommodated.

SRH

A

Minimum size VEX1B 33
Non-grease only for VEX1AB 33
Seal materials (NBR, FKM) only for VEX1AB 33

SRP SRF ARX20 VCHR ITV Minimum size

IC PVQ VEF VEP

VER VEA VY2 VBA VBAT

AP100

Manual handle type

Air operated type

571 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 2

Series VEX13 3 0

Application Example Relief Type Regulator Precise internal tank pressure setting

Accurate Pressure Setting Sensitivity within 0.2% F.S. (Full span) Tension control

3(R) 2(A) 1(P) 3(R)

Precision regulator

2(A) 1(P)

 Large effective areas of both supply and exhaust sides make it possible to precisely set large-flow internal tank pressure.

Contact Pressure Control

Drive roller

Balance and Drive Accurate balance pressure setting

Winding roller

PA 2(A)

3(R)

3(R) 2(A)

1(P)

1(P)

Air operated type 3(R)

Low friction type

2(A) 1(P)

 Pressure is kept steady, responding rapidly to the position change of the piston in the cylinder.

 Pressure

changes during cylinder actuation are suppressed, balancing the cylinder in both static and dynamic conditions.

Load Balance (With superior repeatability) Within ±0.5% F.S. (Full span) Manifold 2(A)

2(A)

1(P)

3(R)

 Accurate

balance pressure setting and superior repeatability prevent actuating play in the cylinder, and make the stop precision steady.  Manifold can be mounted to VEX1B33, VEX12303.

572 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 3

Power Valve/Precision Regulator

Series VEX13 3 0

Specifications Model Operation

Manual (Push locking slotted type)

Refer to Applicable Fluids.

Setting pressure range Ambient temperature (1)

Repeatability Sensitivity Air consumption (2) Mounting Port 1(P) Port size 2(A) 3(R) Mass (kg)

10

VEX193 03 - 14 20

Manual handle (Push locking slotted type) and Air operated type

Air

ARJ

(Set pressure + 0.1 MPa) to Max. 1 MPa Caution ∗ Refer to “Precautions”. 0.05 to 0.7 MPa 0 to 60˚C

Supply pressure

Fluid temperature (1)

04

04

Internal pilot External pilot can be switched. ∗ Refer to “How to Switch to External Pilot” on page 574.

Pilot Fluid

02

M5 0 01 0 01 VEX133 0 - 03 VEX153 0 - 06 VEX173 0 - 10 VEX1A33- M5 3 12 3 3 01 VEX1B33- 01 VEX113 3 - 02 VEX123 3 - 02

0.01 to 0.7 MPa 0 to 60˚C (VEX1AB 33) 0 to 99˚C (VEX1AB 33B)

AR425 to 935

AMR

0 to 60˚C

M5

01

M5

01

Within ±0.5% F.S. (Full span) Within 0.2% F.S. (Full span) 9.5 l/min (ANR) (at supply pressure 1.0 MPa) Free 01 02 01 02 02 03 04 04 06 10

M5

1

M5

1

1

8

8

1

8

1

4

8

1

4

1

3

4

8

1

2

1

2

3

4

1

ARM ARP IR 10

12

1

11

11 0.15

0.2

0.18 (4)

0.3 (4)

0.5

1.4

14 11

20

IRV 2

2

4

2

4

2

4

Note 1) No condensation. Note 2) Large amount of air is exhausted all the time. Note 3) Applicable only to air operated type. Note 4) With sub-plate. Note 5) Non-lubricated specifications are not available for valve sizes 1 to 9.

VEX1 SRH SRP SRF ARX20 VCHR

Applicable Fluids A

Model

VEX1AB 33B

VEX1 B 33 (Seal material: NBR seals)

Fluid

ITV

(Seal material: FKM seals) High temp. air (Max. 99°C)

Air (Normal, Dry)

IC PVQ VEF VEP

VER

JIS Symbol PA

VEA 3(R)

3(R) 2A

1(P)

2A

VY2

1(P)

VBA VBAT

AP100

573 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 4

Series VEX13 3 0

How to Order

Caution Using the External Pilot

VEX1 A 3 3 B

M5

Regulator valve

Option Bracket B Foot F G Pressure gauge Silencer N for bleed port

Seal material Nil NBR seals FKM seals B Type Precision regulator

Note ) Refer to Applicable Fluids on page 573.

Body size Body ported

A

Base mounted B

How to Switch to External Pilot

Threads (1/8 only) Nil Rc G F N NPT T NPTF

Port size Port size 1(P), 2(A), 3(R) Port M5 M5 1 01 8 Without sub-plate Nil M5 M5 1 01 8

VEX1 5 3 3

2. If a mist separator cannot be installed on the supply side, change to an external pilot, and make sure to install a mist separator on the pilot side. 1. Using a flat head screwdriver, remove the fixed orifice from port P1.

Operation Manual handle

Body size

1. If a pressure difference over 0.1 MPa between the supply and the set pressure cannot be maintained, change to an external pilot to obtain the necessary pressure difference.

G

2. Install the fixed orifice facing in the opposite direction (external pilot). Install it carefully to prevent damage to the O-ring. 3. Tighten the fixed orifice again and connect the pilot piping to port P1 using an M5 fitting.

Position for port P1

10

G

Regulator valve

Option Bracket B Foot F G Pressure gauge Silencer N for bleed port

Type Precision regulator Operation Air operated type 0 3 Manual handle type

Dimensions of port P1 Fixed orifice Port P1

Thread type

Body size Body size 1

Body ported

3

5 7

Base mounted

9 2

Nil F N T

Port size Port size Port 1(P), 2(A) 3(R) 1 01 8 1 02 4 1 02 4 3 03 8 1 04 2 1 04 2 3 06 4 10 1 10 1 11 4 12 11 4 1 14 1 2 2 20 2 Without sub-plate Nil 1 01 8 1 02 4

Fittings for M5

Rc G NPT NPTF • For VEX1 AB 33 (NBR seals) Fixed orifice assembly (with O-ring) part no.: VEX1-A30-3 • For VEX1 AB 33B (FKM seals) Fixed orifice assembly (with O-ring) part no.: VEX1-A30-3B Note) O-rings cannot be shipped as a single unit.

Option (1) Part no.

Description

VEX1A33

VEX1B33

VEX113 03 VEX123 03

VEX133 03 VEX153 03

VEX173 03

VEX193 03

VEX3-32A

VEX7-32A

VEX9-32A

Bracket (With bolt and washer)

B

VEX1-18-1A

VEX1-18-1A

Foot (With bolt and washer)

F

VEX1-18-2A

VEX1-18-2A

Pressure gauge (2)

G

Silencer for bleed port (PE)

N

G27-10-R1-X207

G27-10-01

G36-10-01

VEX5-32A

G46-10-01

AN120-M5

Note 1) The optional parts are shipped in the same package. Note 2) If a pressure gauge other than that which is indicated in the option table is to be used, also enter the part number of the pressure gauge. Refer to the pressure gauge guide in Best Pneumatics No. 6 for details. Example: VEX1333-03 G36-4-01

574 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 5

Power Valve/Precision Regulator

Series VEX13 3 0

Sub-plate/Base Gasket Part No. B

Valve body size

VEXB-2-

Sub-plate

Port size Port size M5 1/8

Symbol A B

2

P Thread type

Symbol Thread type Rc Nil G F NPT N NPTF T

VEX1-9-1 Port size Port size 1/8 1/4

Symbol A B

P Thread type

Symbol Thread type Rc Nil G F NPT N NPTF T

ARJ AR425 to 935

AMR

VEXB-4 Base gasket

Seal material

Symbol Seal material NBR seals Nil FKM seals B

ARM VEX1-11-2

ARP IR IRV VEX1 SRH SRP SRF ARX20 VCHR ITV IC PVQ VEF VEP

VER VEA VY2 VBA VBAT

AP100

575 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 6

Series VEX13 3 0

Manifold Specifications Specifications VEX123 03

VEX1B33

Applicable valve Valve stations Air passage Pilot Pilot port size Port size Port 1(P), 2(A), 3(R)

2 to 10 stations Note)

2 to 8 stations Note)

Common supply/exhaust Common external pilot Internal pilot M5 x 0.8

Internal pilot 1

Common external pilot M5 x 0.8 1

8

4

VEXB-5 (With gasket and mounting bolt)

Blanking plate

Seal material Nil B

VEX1-17 (With gasket and mounting bolt)

NBR seals FKM seals

Note) Pressurize to Port 1(P) and exhaust from Port 3(R) on the both sides for six stations or more of “VEX1B33” and/or five stations or more of “VEX1233”.

How to Order

VVEXB

1

5

01

Body size Port size 1 2

Pilot type Internal pilot Common external pilot

01

1

8

Valve stations 2 2 stations 10

VVEX2

1

10 stations

5

02

Body size Port size 1 02 4

Pilot type 1 2

Internal pilot Common external pilot

Thread type Nil Rc F G N NPT T NPTF

Valve stations 2 2 stations 8

Thread type Nil Rc F G N NPT T NPTF

8 stations

List symbols in the order of precision regulators and blanking plates for manifolds from the left-hand side (Port 2(A) faces this side) of the manifold base. Ex.) VVEX2-2-5-02 ∗ VEX1233-G 4 pieces ∗ VEX1-17 1 piece

Set Pressure Characteristics (Manual Handle Type)

Port 2(A) pressure (MPa)

Port 2(A) pressure (MPa)

Set Pressure Characteristics (Air Operated Type)

Signal port PA

Pressure (MPa)

Handle rotation (Cycles)

576 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 577

Power Valve/Precision Regulator

Series VEX13 3 0

Flow Characteristics VEX1A33, VEX1B33-01 Port 2(A) pressure (MPa)

Port 1(P) pressure: 1 MPa

VEX11303, VEX12303-02 Port 2(A) pressure (MPa)

VEX13303-03 Port 2(A) pressure (MPa)

ARJ AR425 to 935

AMR 3(R)←2(A)

(Relief exhaust)

VEX15303-06

Flow

1(P)→2(A)

3(R)←2(A)

(Pressure reducing supply)

(Relief exhaust)

Port 2(A) pressure (MPa)

Flow

VEX17303-12

1(P)→2(A)

3(R)←2(A)

(Pressure reducing supply)

(Relief exhaust)

Port 2(A) pressure (MPa)

1(P)→2(A)

Flow

VEX19303-20

(Pressure reducing supply)

ARM ARP

Port 2(A) pressure (MPa)

IR IRV VEX1 SRH SRP SRF (Relief exhaust)

Flow

1(P)→2(A)

3(R)←2(A)

(Pressure reducing supply)

(Relief exhaust)

Pressure Characteristics

Set point

3(R)←2(A)

(Pressure reducing supply)

(Relief exhaust)

1(P)→2(A)

Flow

(Pressure reducing supply)

Port 1(P) pressure: 0.7 MPa, Port 2(A) pressure: 0.2 MPa, Flow: 0 l/min (ANR)

VEX11303, VEX12303 Port 2(A) pressure (MPa)

Port 2(A) pressure (MPa)

VEX1A33, VEX1B33

Flow

1(P)→2(A)

VEX13303

Set point

Port 2(A) pressure (MPa)

3(R)←2(A)

ARX20 VCHR ITV IC

Set point

PVQ VEF VEP

VER VEA

VEX17303

VEX15303

VY2

Port 1(P) pressure (MPa)

Port 1(P) pressure (MPa)

Port 1(P) pressure (MPa)

VBA VBAT

VEX19303

Port 1(P) pressure (MPa)

Set point

Port 1(P) pressure (MPa)

Port 2(A) pressure (MPa)

Set point

Port 2(A) pressure (MPa)

Port 2(A) pressure (MPa)

AP100 Set point

Port 1(P) pressure (MPa)

577 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 7

Series VEX13 3 0

Construction/Working Principle VEX11303, VEX12303, VEX13303, VEX15303 VEX17303, VEX19303

VEX1A33, VEX1B33

Manual handle type Handle

Bonnet Precise pilot valve

Precise pilot valve

Fixed orifice

Adjustment spring

Precise pilot valve

Upper diaphragm

Valve guide

Valve

Spring

Main valve part

Adjustment spring

Flapper Nozzle

Fixed orifice

Diaphragm

Piston

Main valve part

Retainer Lower diaphragm Body 3(R) 1(P) 2(A)

Valve guide

Shaft Body

Bonnet

No.

Description

Material

1

Body

2

Bonnet

3

Upper diaphragm

4

Spring

Stainless steel

5

Valve guide

Stainless steel

6

Valve

7

Retainer

8

Lower diaphragm

Zinc alloy die-casted Aluminum alloy die-casted NBR/FKM

NBR/FKM

No. 9

Handle

1(P)

Air operated type Zero adjusting screw Diaphragm Flapper

Signal port

Nozzle Diaphragm

P(1) port pressure

Feedback pressure

When set-handle o is turned clockwise, the force generated by set spring !0 causes flapper !3 to close nozzle !4, allowing the nozzle back pressure to be applied to the top of piston e. Then, via shaft u, poppet valve (supply air) y opens, allowing the supply air to flow from port 1(P) to port 2(A). The air pressure that has flowed in is applied to the bottom surface of piston e and counteracts the force generated by the nozzle back pressure; at the same time, it is applied to the bottom surface of diaphragm !1, and balances with the set pressure that conteracts the compression force of set spring !0. When the outlet pressure increases higher than the set pressure, it pushes the diaphragm !1 upward, the pressure at the top surface of piston e decreases, causes piston e to move upward, opens poppet valve (exhaust) y via shaft u, and is discharged through port 3(R) to the atmosphere. If set-handle o is turned counterclockwise (if the set pressure of the pressure-reducing valve connetcted to the signal port is decreased), the movement will be the opposite; the outlet pressure will decrease and balance with a newly set pressure. Note) Those indicated in parentheses are for the air operated type.

Component Parts No.

Description

Material

Resin

1

Body

Aluminum alloy die-casted

NBR/FKM

2

Bonnet

Aluminum alloy die-casted

3

Regulating piston

4

Spring

Stainless steel

5

Valve guide

Aluminum alloy

6

Poppet valve

7

Shaft

Stainless steel

8

Valve guide

Aluminum alloy

Replacement Parts Description

Poppet valve (Air exhaust)

Valve guide

Precise pilot valve

Flapper

Nozzle

Diaphragm

Component Parts

2(A)

Poppet valve (Air supply) Spring

When set-handle o is turned clockwise, the force generated by set spring !0 causes flapper !3 to close nozzle !4, allowing the nozzle back pressure to be applied to the right surface of top diaphragm e. Then, valve y moves to the left, allowing the supply air to flow from port 1(P) to port 2(A). The air pressure that has flowed in is applied to the left surface of top diaphragm e and counteracts the force generated by the nozzle back pressure; at the same time, it is applied to the left surface of diaphragm !1, and balances with the set pressure that counteracts the compression force of set spring !0. When the outlet pressure increases higher than the set pressure, it pushes diaphragm !1 towards the right, and the pressure at the right side of top diaphragm e decreases, causing top diaphragm e to move to the right. Then, valve y moves away from the left surface of top diaphragm e, the outlet pressure flows from port 2(A) via the valve hollow and is discharged through port 3(R) (atmosphere). If set handle o is turned conterclockwise, the movement will be the opposite, the outlet pressure will decrease, and will balance with a newly set pressure.

Spring

3(R)

Part no. VBA1-10

Aluminum alloy

NBR

Replacement Parts No. 9

Description Handle

Part no. VBA1-10

578 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 579

Power Valve/Precision Regulator

Series VEX13 3 0

Body Ported VEX1A33-M5, 01 A section view 2 x M3 x 0.5 (Mounting thread) 4 x ø4.5 (Mounting hole)

ARJ AR425 to 935

AMR ARM

Pressure gauge (Option)

ARP

3 x 1 8, M5

IR IRV

76

Note)

M5 x 0.8

VEX1

Note)

Foot (Option)

SRH Bracket (Option)

SRP

2 x ø4.5 (Mounting hole)

SRF Note) ( ) are the dimensions of “M5”.

ARX20 VCHR

VEX11303-01, 02

ITV

A section view

IC

2 x M3 x 0.5 (Mounting thread)

Foot (Option)

4 x ø4.5 (Mounting hole)

PVQ VEF VEP

VER Pressure gauge (Option)

VEA VY2

Air operated type

VBA VBAT

AP100

102.5

M5 x 0.8

Bracket E (Option) 3x 2 x ø4.5 (Mounting hole)

579 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 580

Series VEX13 3 0

Body Ported VEX133 03 -02, 03, 04 Pressure gauge (Option)

Air operated type

Bracket (Option) (Mounting thread)

VEX153 03 -04, 06, 10

Pressure gauge (Option)

Bracket (Option)

Air operated type

(Mounting thread) (Mounting hole)

580 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 581

Power Valve/Precision Regulator

Series VEX13 3 0

Body Ported VEX173 03 -10, 12

Bracket (Option)

ARJ AR425 to 935

AMR

Pressure gauge (Option)

Air operated type

ARM ARP IR

(Mounting hole)

IRV (Mounting thread)

VEX1 SRH SRP SRF ARX20 VEX193 03 -14, 20

VCHR

Bracket (Option)

ITV IC PVQ VEF VEP

VER Pressure gauge (Option)

Air operated type

VEA VY2 VBA VBAT

AP100

(Mounting thread) (Mounting hole)

581 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 582

Series VEX13 3 0

Base Mounted

VEX1B33-M5, 01

(Mounting hole)

Pressure gauge (Option)

VEX123 03 -01, 02

Air operated type

(Mounting hole)

Pressure gauge (Option)

582 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 583

Power Valve/Precision Regulator

Series VEX13 3 0

Manifold: VVEXB---01 Valve mounting side Applicable valve: VEX1B33 Pilot port

ARJ AR425 to 935

Port 2(A)

AMR ARM Blanking plate

ARP IR IRV VEX1 SRH SRP

Mounting hole

SRF ARX20 VCHR ITV IC PVQ Pressure gauge (Option)

Port 3(R): 1 8 For 6 manifold stations or more, exhaust from the both sides.

VEF VEP

External pilot port Without thread: Internal pilot VVEXB-1 With M5 x 0.8 thread: Common external pilot VVEXB-2

VER VEA VY2 VBA VBAT

n x port 2(A):

Port 1(P): 1 8 For 6 manifold stations or more, exhaust from the both sides.

18

L Dimension n 2 Symbol L1 87 74 L2

AP100

L1 = 31n + 25, L2 = 31n + 12 n: Station

3

4

5

6

7

8

9

10

118 105

149 136

180 167

211 198

242 229

273 260

304 291

335 322

583 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 584

Series VEX13 3 0

Manifold: VVEX2---02 Valve mounting side Applicable valve:

VEX123 03 Pilot port

Pilot port

Port 2(A)

Port 2(A)

Internal pilot

Common external pilot

VVEX2-1

VVEX2-2

Mounting hole

Pressure gauge (Option)

Blanking plate

Port 1(P): 1 4 For 5 manifold stations or more, exhaust from the both sides. External pilot port Without thread: Internal pilot VVEX2-1 With M5 x 0.8 thread: Common external pilot VVEX2-2

n x port 2(A):

14

Port 3(R): 1 4 For 5 manifold stations or more, exhaust from the both sides.

L Dimension n 2 Symbol L1 L2

91 76

L1 = 31n + 29, L2 = 31n + 14 n: Station

3

4

5

6

7

8

122 107

153 138

184 169

215 200

246 231

277 262

584 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com

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Page 585

Power Valve/Precision Regulator

Precautions

 Noise

reduction capability of over 30 dB. a sufficient effective area.

 Provides

Warning

1. If drainage or debris is present in the supply pressure line, the fixed orifice becomes clogged, resulting in a malfunction. Therefore, in addition to the air filter (SMC’s AF series), make sure to use a mist separator (SMC’s AM, AFM series). Concerning the quality of the operating air, refer to SMC’s the air preparation equipment selection guide (pages 2 and 3). 2. Make sure to perform a maintenance periodically on air filter and mist separator (by discharging the drain and cleaning a filter element or replacing with new one). 3. Never use a lubricator on the supply side with the internal pilot remaining in place, doing so will cause the fixed orifice to become clogged, invariably leading to a malfunction. 4. When lubrication to terminal device is required: Connect a lubricator on the supply [port 1(P)] side using the external pilot type. Use mist separator passage on the pilot air [port P1] side. 5. Use a supply pressure in the recommended range (the range indicated in the diagram below).

VEX1A33, VEX1B33

Supply pressure (MPa)

Silencer (Series AN)

Piping

Caution

Supply pressure range

1. If a (solenoid or mechanical) directional switching valve is installed on the supply side of the precision regulator and the valve is turned ON-OFF repeatedly, it will increase the wear of the nozzle flapper, which could lead the set value to deviate. Therefore, avoid using a directional switching valve on the supply side. To install a directional switching valve, do so on the output side of the pressure-reducing valve. Referring to the flow characteristics on page 577, select an applicable valve size which gives enough flow on both reduced pressure supply and relief exhaust sides. If reduced pressure supply and relief exhaust supply cause extreme flow changes repeatedly, it may damage internal parts more quickly.

Caution 1. Tightening the fittings and their torque When screwing fittings into the valve, make sure to tighten them to the proper torque values given below. Tightening Torque when Piping Applicable torque (N.m)

Connection thread M5 x 0.8 Approx. 1

1

6 rotation

after manual tightening

7 to 9 12 to 14 4 3 22 to 24 8 1 28 to 30 2 3 28 to 30 4 1 36 to 38 11 4 40 to 42 11 2 48 to 50 2 48 to 50 2. Ordinarily, air is discharged from the bleed port (PE). The consumption of air through this discharge is normal, owing to the construction of the precision pressure regulator. 8

ARJ AR425 to 935

AMR ARM Connection Effective area (mm2) R

Model

AN120 AN110 AN200 AN300 AN400 AN500 AN600 AN700 AN800 AN900

M5 x 0.8 1 1 3 1 3

8 4 8 2 4

1 11 4 11 2 2

5 35 35 60 90 160 270 440 590 960

1

For details, refer to Best Pneumatics No. 6.

Exhaust cleaner (Series AMC)

ARP IR IRV VEX1 SRH SRP SRF

 Provides

noise reduction and oil mist recovery functions.  Can also be used in an intensive piping system.

ARX20 VCHR ITV

Regulator for Signals (Air operated type only)

IC

Caution  Applicable

model Regulator Series IR2000 Series VEX1AB33  In the case of multiple pressure control, consider using series ITV or the E-P HYREGR series VY, which can simplify your system.

Set pressure (MPa)

VEX11330, VEX12330, VEX13330 VEX15330, VEX17330, VEX19330

Supply pressure (MPa)

0

Related Products:

Be sure to read before handling. Refer to front matters 42 and 43 for Safety Precautions and pages 287 to 291 for Precautions on every series. Operating Fluid

Series VEX13 3

Supply pressure range

Set pressure (MPa)

Zero Adjustment Screw

Caution  The

zero adjustment screw has been adjusted at the time of shipment to set the signal pressure and the output pressure as close to 1:1 as possible. Thus, it is not necessary to adjust it for operational purposes.

Vibration

Caution Vibration is likely to occur under the following conditions. 1. Supply pressure is relatively high (approx. 0.5 MPa or higher), set pressure is low (approx. 0.1 MPa or lower) and the outlet side is open to the atmosphere. 2. Capacity of the precision regulator outlet side is extremely small. The following measures can be taken. a. Set the supply pressure extremely low (+0.1 MPa or more of the set pressure). b. Make the capacity of the precision regulator outlet side larger. c. Install an exhaust throttle valve with a silencer (ASN2-M5) on the bleed port (PE). Vibration can be avoided by adjusting the exhaust throttle. However, if the bleed is throttled too much, sensitivity may be reduced, resulting in poor performance. Be sure not to apply excessive throttle.

PVQ VEF VEP Model

AMC310 AMC510 AMC610 AMC810 AMC910

Connection Effective area Max. flow R (mm2) (l/min (ANR)) 3 3

8 4

1 11 2 2

16 55 165 330 550

 Oil mist removal of 99.9%  Noise reduction of over 35

300 1,000 3,000 6,000 10,000

dB.

For details, refer to Best Pneumatics No. 6.

VER VEA VY2 VBA VBAT

AP100

585 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com