rev. jdv’s electric control valve...windings based on the command pulse, the motor rotates...

4
S S N Stator (Permanent magnet) Rotor S N S Stator (Permanent magnet) Rotor Stepping Motor A stepping motor, also called a pulse motor, is a motor that rotates in synchronization with a command pulse signal. The principle of rotation of a simplified 2-phase, 8-pole stepping motor model is shown in the figure below. A stepping motor consists of a stator with windings and a rotor using a powerful neodymium magnet. Energizing the stator windings to generate a magnetic force is called excitation. By sequentially exciting the multiple stator windings based on the command pulse, the motor rotates stepwise, utilizing the action of attraction and repulsion between the magnetic poles of the stator and rotor. The rotation angle of a stepping motor is always determined by the constant mechanical accuracy (motor structure and machining accuracy) for each command pulse signal. Therefore, a stepping motor performs highly accurate positioning control. A stepping motor rotates by a constant angle per pulse. An open network is an industrial network, the specifications of which are made public and can be commonly used by many users and manufacturers. Open networks are roughly divided into the following two types. 1. Those specified by organizations and associations in consultation and recognized as official standards. 2. Those developed by specific manufacturers and organizations and established as de facto standards as a result of promotion activities. Both types have well-organized and integrated specifications and are available to everyone for many purposes. Either one can connect different manufacturers’ devices (multivendor devices) and brings many benefits to users. Currently, many types of open networks are expanding their tempo of popularization according to the applicable field and country in the market. Open Network How to Order (Example for JSB V-port) Guidance 1 Guidance 2 Guidance 3 Notes on Catalog: All rights are reserved. The technical data and content may be changed without prior notice. 8 JDV CONTROL VALVES CO., LTD. Headquarters, 5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN International Department & Tel: +81-(0)6-6659-8201 Fax: +81-(0)6-6659-8510 Factory E-mail: [email protected] Headquarters NO. 6-1, QINGNIAN RD., YANGMEI CITY, TAOYUAN COUNTY 326, TAIWAN Your local Contact Actuator Manufacturer represen tative: www.jdv.com.tw www.m-system.com Tel: +886-3-4965066 Fax: +886-3-4963526 E-mail: [email protected] JDV’s ELECTRIC CONTROL VALVE Energy saving Space saving Shorter installation work time High function and high performance High function and high performance High torque (Max. 200 N m) High Resolution (1/1000) A battery-driven model is available as well. (*1) (*1) (*1) (*1) (*1) (*1) Contact us for details. Open Network Supported Open Network Supported JSB Series JDV’s Directly connected to various open networks to save wiring efforts to a great extent ! No time- and money-consuming air source equipment is required ! Electric control valve is ready to operate immediately after connecting signal and power supply ! The electric actuator is made by M-System. Furthermore, many more advantages ! ELECTRIC CONTROL VALVE JTD Series 2019-09 EC-Z203 4-3011 Rev. 0 01 500610 JDV CONTROL VALVES CO., LTD. M-SYSTEM CO., LTD.

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• Energy saving

• Space saving

• Shorter installation work time High function and

high performanceHigh function andhigh performance• High torque (Max. 200 N •m)

• High Resolution (1/1000)

• A battery-driven model is available as well.

(*1)

(*1)(*1)

(*1)

(*1)

(*1) Contact us for details.

Open Network SupportedOpen Network Supported

JSB Series

JDV’s

JDV CONTROL VALVES CO., LTD.M-SYSTEM CO., LTD.

Directly connected to various open networks to

save wiring efforts to agreat extent!

No time- and money-consuming air

source equipmentis required!

Electric control valve is ready to operate immediately after connecting signal and

power supply!

The electric actuator is made by M-System.

Furthermore,many more

advantages!

JSB Seriesmoney-consuming air

JSB Series

S

S

NStator

(Permanent magnet)Rotor

S

N

SStator

(Permanent magnet)Rotor

Stepping Motor

A stepping motor, also called a pulse motor, is a motor that rotates in synchronization with a command pulse signal. The principle of rotation of a simpli�ed 2-phase, 8-pole stepping motor model is shown in the �gure below.A stepping motor consists of a stator with windings and a rotor using a powerful neodymium magnet. Energizing the stator windings to generate a magnetic force is called excitation. By sequentially exciting the multiple stator windings based on the command pulse, the motor rotates stepwise, utilizing the action of attraction and repulsion between the magnetic poles of the stator and rotor. The rotation angle of a stepping motor is always determined by the constant mechanical accuracy (motor structure and machining accuracy) for each command pulse signal. Therefore, a stepping motor performs highly accurate positioning control.

A stepping motor rotates by a constant angle per pulse.

An open network is an industrial network, the speci�cations of which are made public and can be commonly used by many users and manufacturers.Open networks are roughly divided into the following two types.1. Those speci�ed by organizations and associations in consultation and recognized as official standards.2. Those developed by speci�c manufacturers and organizations and established as de facto standards as a result of promotion activities.Both types have well-organized and integrated speci�cations and are available to everyone for many purposes. Either one can connect different manufacturers’ devices (multivendor devices) and brings many bene�ts to users.Currently, many types of open networks are expanding their tempo of popularization according to the applicable �eld and country in the market.

Open Network

How to Order (Example for JSB V-port)

Guidance 1

Guidance 2

Guidance 3

Notes on Catalog: All rights are reserved. The technical data and content may be changed without prior notice.

ELECTRIC CONTROL VALVE

JTD Series

8

2019-09EC-Z203

4-3011

Rev. 001500610

JDV CONTROL VALVES CO., LTD.

Headquarters, 5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANInternational Department & Tel: +81-(0)6-6659-8201 Fax: +81-(0)6-6659-8510Factory E-mail: [email protected]

Headquarters NO. 6-1, QINGNIAN RD., YANGMEI CITY, TAOYUAN COUNTY 326, TAIWAN

Your local Contact

Actuator Manufacturer

represen tative:

www.jdv.com.tw

www.m-system.com

Tel: +886-3-4965066 Fax: +886-3-4963526 E-mail: [email protected]

JDV

’s E

LEC

TR

IC C

ON

TR

OL

VA

LVE

JDV CONTROL VALVES CO., LTD.M-SYSTEM CO., LTD.

• Energy saving

• Space saving

• Shorter installation work time High function and

high performanceHigh function andhigh performance• High torque (Max. 200 N •m)

• High Resolution (1/1000)

• A battery-driven model is available as well.

(*1)

(*1)(*1)

(*1)

(*1)

(*1) Contact us for details.

Open Network SupportedOpen Network Supported

JSB Series

JDV’s

JDV CONTROL VALVES CO., LTD.M-SYSTEM CO., LTD.

Directly connected to various open networks to

save wiring efforts to agreat extent!

No time- and money-consuming air

source equipmentis required!

Electric control valve is ready to operate immediately after connecting signal and

power supply!

The electric actuator is made by M-System.

Furthermore,many more

advantages!

JSB Seriesmoney-consuming air

JSB Series

S

S

NStator

(Permanent magnet)Rotor

S

N

SStator

(Permanent magnet)Rotor

Stepping Motor

A stepping motor, also called a pulse motor, is a motor that rotates in synchronization with a command pulse signal. The principle of rotation of a simpli�ed 2-phase, 8-pole stepping motor model is shown in the �gure below.A stepping motor consists of a stator with windings and a rotor using a powerful neodymium magnet. Energizing the stator windings to generate a magnetic force is called excitation. By sequentially exciting the multiple stator windings based on the command pulse, the motor rotates stepwise, utilizing the action of attraction and repulsion between the magnetic poles of the stator and rotor. The rotation angle of a stepping motor is always determined by the constant mechanical accuracy (motor structure and machining accuracy) for each command pulse signal. Therefore, a stepping motor performs highly accurate positioning control.

A stepping motor rotates by a constant angle per pulse.

An open network is an industrial network, the speci�cations of which are made public and can be commonly used by many users and manufacturers.Open networks are roughly divided into the following two types.1. Those speci�ed by organizations and associations in consultation and recognized as official standards.2. Those developed by speci�c manufacturers and organizations and established as de facto standards as a result of promotion activities.Both types have well-organized and integrated speci�cations and are available to everyone for many purposes. Either one can connect different manufacturers’ devices (multivendor devices) and brings many bene�ts to users.Currently, many types of open networks are expanding their tempo of popularization according to the applicable �eld and country in the market.

Open Network

How to Order (Example for JSB V-port)

Guidance 1

Guidance 2

Guidance 3

Notes on Catalog: All rights are reserved. The technical data and content may be changed without prior notice.

ELECTRIC CONTROL VALVE

JTD Series

8

2019-09EC-Z203

4-3011

Rev. 001500610

JDV CONTROL VALVES CO., LTD.

Headquarters, 5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPANInternational Department & Tel: +81-(0)6-6659-8201 Fax: +81-(0)6-6659-8510Factory E-mail: [email protected]

Headquarters NO. 6-1, QINGNIAN RD., YANGMEI CITY, TAOYUAN COUNTY 326, TAIWAN

Your local Contact

Actuator Manufacturer

represen tative:

www.jdv.com.tw

www.m-system.com

Tel: +886-3-4965066 Fax: +886-3-4963526 E-mail: [email protected]

JDV

’s E

LEC

TR

IC C

ON

TR

OL

VA

LVE

JDV CONTROL VALVES CO., LTD.M-SYSTEM CO., LTD.

The electric control valve fully demonstrates its functions

PLC

ABC12CPU

PULL

POWER

PULL

MODERUNERR

READYBAT

STOP

The electric control valve connects to various open networks directly.

(*2)

(*2)(*2)(*2)

(*2)

A number of electric control valves with open network capability connect in a

daisy-chain layout, which saves wiring effort.Various operating information on electric control valves can be collected through a single network.

M-System’s electric actuator MRP Series

• Opening position feedback• Opening position input error• Motor lock alarm• Maintenance information

(Motor activation count and

integrated operation distance)• Others

Electric control valve PLC

• Opening position setting• Forced opening and closing• Alarm reset• Maintenance information and

reset• Others

PLC Electric control valve

PP

I/P

Incidental equipment

Pressurereducing valve with filter

Pressurereducing valve with filter

Stop valve Stop valve

I/P positioner

Drain

Control signal

(high or low voltage)Power source

20-100 kPa

Compressor

Air Dryer

4-20 mA DC

Air header

PNEUMATIC

The pneumatic control valve requires

complicated equipment and consumes plenty of power.

Pneumatic positionerPneumatic positioner

Pneumatic control valve

Replace the existing pneumatic valve with an electric valve.

A compressor entails equipment costs as well as troublesome

maintenance work!What is more, it resultsin high electricity bills!

(*2) For open networks, refer to Guidance 2 on page 8 .

2

by simply connecting signal and power supply!

The stepping motor is adopted for the drive block.

Output Stem Stem for manual operation

ELECTRICControl signal

Power source

4-20 mA DC or Open network

No incidental equipment

The electric control valve does not require

incidental equipment, and consumes less power.

Equipment

cost ↓1/5 (*3)

Energy consumption ↓1/10 (*3)!

Only standby power (*4)

is consumed when the

control loop is in

a steady state.

Electric control valve

(*4) Maximum power consumption: 180 VA Standby power: 18 VA

(*3) The data surveyed by M-System.

The data is provided on the condition that M-System’s PRP Electric Actuator is used.

Then you can eliminate incidental equipment.

The stepping motor has high torque and a resolution of 1/1000.

Battery for fail-safe operation is optional.

Digital control unit

FeaturesInstant zero/span positionsetupFlexible opening/closingspeed settingsOpening position outputLock alarm output

Power outage emergency battery

Customers can choose models provided with a battery as well as functions of emergency actions (i.e., Full Closed, Full Open, Hold Position or Target Value) in times of loss of power. Stepping Motor

High torque 200 N •mHigh resolution 1/1000

M-System’s electric actuator PRP Series

(*5)(*5)

(*5) Refer to Guidance 1 on page 8 .

3

The electric control valve is of a simple structure and compact, and it ensures high performance.

Valve Body

PRP SeriesM-System’s electric actuator

Yoke

JTD Series

57

435

144

φ21

5.9

171 141

φ15

8.8

φ14

1.5

194

404

134

171 141

φ10

0

φ15

8

φ11

3

(Diameter: 100 mm) (Diameter: 150 mm)

(unit: mm)

We are ready to prepare several kinds of valve sizes and materials.(*6)

Please contact us for details.

The electric control valve has a very simplestructure compared to the pneumatic control valve.

The electric actuator section is small, which makes it possible to narrow the distance between pipes.

After installation, the electric control valve will be operational by just providing power

supply and connecting signal input (or connecting a network).

The accurate and stable control with The accurate and stable control with JDV’s Electric Control Valves ensures the reliable and profitable operation of your plant.ensures the reliable and profitable operation of your plant.

JSB Series V-Port Segment Control Valve

2540506580

100125150200

2540506580

100125132200

102114124140(*7)

165194254(*7)

229243

108134142151164193215232279

708492

101112134154171198

2.50 3.754.805.519.11

14.8525.9028.2245.20

1”1-1/2”2”2-1/2”3”4”5”6”8”

DIMENSIONS FOR WAFER TYPE (JSB-W1) Unit : mmSize L H1 H2 Wt (Kg)φA1

2540506580

100125150200

2540506580

100125132200

127165178190203229254267292

108134142151164193215232279

708492

101112134154171198

3.75.87.5

11.812.823.031.538.062.5

1”1-1/2”2”2-1/2”3”4”5”6”8”

DIMENSIONS FOR FLANGED TYPE (JSB-A1 SERIES JIS-10K) Unit : mmSize L H1 H2 Wt (Kg)φA1

Wafer Type Flanged Type

H1

L

H2

φA

1

H1

L

H2

φA

1

SegmentV-notch designoptimizing the �owcharacteristicsand providinga shearing function.

Inherent Flow Characteristics

Cv Values

0.010.020.040.060.100.150.230.38

0.521.061.682.794.546.57

10.2016.70

1.663.355.308.80

14.3020.7032.1052.70

3.446.95

11.0010.2329.6743.0066.64

109.30

5.8711.8518.7531.1050.6273.30

113.70186.50

9.1118.3829.1040.2678.50

113.70176.40289.50

13.3626.9642.6770.78

115.20166.80258.70424.54

18.8338.0060.1299.74

162.30235.00360.60598.20

27.5455.5587.90

145.86237.40343.70533.00874.80

40.5081.70

129.30214.50349.10505.50784.00

1286.50

Size10

Opening (%)20 30 40 50 60 70 80 90 100

1”1-1/2”2”2-1/2”3”4”5”6”

Opening (%)

Cv

(%)

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

JSB Series

(*6) Refer to Guidance 3 on page 8 .

(*7) Not in ISA standard

4 5

Application of JDV’s Electric Control ValvePetrochemical

Petroleum Refinery

Pulp and Paper Mills

Steel Industry

Mining

Gas Industry

Chemical

Power Plant

Food Industry

Water Purification Plants

The accurate and stable control with JDV’s Electric Control Valves The accurate and stable control with JDV’s Electric Control Valves ensures the reliable and profitable operation of your plant.ensures the reliable and profitable operation of your plant.

JTD Series Double Offset Butter�y Valve

6580

100125150200250300350

484854575764718192

74.688.9

114.3130.0158.8209.6254.0304.8343.0

168158190203208235295325399

181818182325364050

5.05.88.2

10.613.422.036.053.069.0

2-1/2” 3” 4” 5” 6” 8”10”12”14”

DIMENSIONS FOR WAFER TYPE 150LB (300LB also available) Unit : mmSize φD2

59.073.195.6

111.4141.5188.0235.9281.5314.3

φD1 H1116109122132144181211246286

H2 H3 Wt (Kg)L6580

100125150200250300350

484854575764718192

74.688.9

114.3130.0158.8209.6254.0304.8343.0

168158190203208235295325399

181818182325364050

6.57.8

12.014.018.029.048.073.0

120.0

2-1/2” 3” 4” 5” 6” 8”10”12”14”

DIMENSIONS FOR LUG TYPE 150LB (300LB also available) Unit : mmSize φD2

59.073.195.6

111.4141.5188.0235.9281.5314.3

φD1 H1116109122132144181211246286

H2 H3 Wt (Kg)L

Wafer Type Lug Type

Disc centerline

Ste

m c

ente

rline

2nd Offset

1st Offset

Pipe centerline

Pip

e ce

nter

line

φ

D1

φD

2

L

H2

H1

H3

φ

D1

φD

2

L

H2

H1

H3

Inherent Flow Characteristics

Cv Values

The Double Offset Geometry

1st OffsetThe centerline of the stem is moved behind the seat axis, in order to offer an optimum sealing contact.

2nd OffsetThe centerline of the disc is offset from the centerline of the valve body, allowing the disc seal to move away freely during the opening.

48

213355

108163260290

6580

100125150200250300350

613335288

172260416465

11245792

155301455728815

163482

131221430650

10401160

2247

115183309602910

14561625

2655

135216365710

107317161915

4289

217347586

1140172327563074

60126308491829

1613243839004350

74155377603

10171978299047845336

80168410655

11052150325052005800

Size10

Opening (%)20 30 40 50 60 70 80 90 100

2-1/2” 3” 4” 5” 6” 8”10”12”14”

Opening (%)

Max

imum

Cv

(%)

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

6 7

The accurate and stable control with JDV’s Electric Control Valves The accurate and stable control with JDV’s Electric Control Valves ensures the reliable and profitable operation of your plant.ensures the reliable and profitable operation of your plant.

JSB Series V-Port Segment Control Valve JTD Series Double Offset Butter�y Valve

2540506580

100125150200

2540506580

100125132200

102114124140(*7)

165194254(*7)

229243

108134142151164193215232279

708492

101112134154171198

2.50 3.754.805.519.11

14.8525.9028.2245.20

1”1-1/2”2”2-1/2”3”4”5”6”8”

DIMENSIONS FOR WAFER TYPE (JSB-W1) Unit : mmSize L H1 H2 Wt (Kg)φA1

2540506580

100125150200

2540506580

100125132200

127165178190203229254267292

108134142151164193215232279

708492

101112134154171198

3.75.87.5

11.812.823.031.538.062.5

1”1-1/2”2”2-1/2”3”4”5”6”8”

DIMENSIONS FOR FLANGED TYPE (JSB-A1 SERIES JIS-10K) Unit : mmSize L H1 H2 Wt (Kg)φA1

6580

100125150200250300350

484854575764718192

74.688.9

114.3130.0158.8209.6254.0304.8343.0

168158190203208235295325399

181818182325364050

5.05.88.2

10.613.422.036.053.069.0

2-1/2” 3” 4” 5” 6” 8”10”12”14”

DIMENSIONS FOR WAFER TYPE 150LB (300LB also available) Unit : mmSize φD2

59.073.195.6

111.4141.5188.0235.9281.5314.3

φD1 H1116109122132144181211246286

H2 H3 Wt (Kg)L6580

100125150200250300350

484854575764718192

74.688.9

114.3130.0158.8209.6254.0304.8343.0

168158190203208235295325399

181818182325364050

6.57.8

12.014.018.029.048.073.0

120.0

2-1/2” 3” 4” 5” 6” 8”10”12”14”

DIMENSIONS FOR LUG TYPE 150LB (300LB also available) Unit : mmSize φD2

59.073.195.6

111.4141.5188.0235.9281.5314.3

φD1 H1116109122132144181211246286

H2 H3 Wt (Kg)L

Wafer Type Flanged Type Wafer Type Lug Type

Disc centerline

Ste

m c

ente

rline

2nd Offset

1st Offset

Pipe centerline

Pip

e ce

nter

line

φ

D1

φD

2

L

H2

H1

H3

φ

D1

φD

2

L

H2

H1

H3

H1

L

H2

φA

1

H1

L

H2

φA

1

SegmentV-notch designoptimizing the �owcharacteristicsand providinga shearing function.

Inherent Flow Characteristics

Cv Values

Inherent Flow Characteristics

Cv Values

The Double Offset Geometry

1st OffsetThe centerline of the stem is moved behind the seat axis, in order to offer an optimum sealing contact.

2nd OffsetThe centerline of the disc is offset from the centerline of the valve body, allowing the disc seal to move away freely during the opening.

0.010.020.040.060.100.150.230.38

0.521.061.682.794.546.57

10.2016.70

1.663.355.308.80

14.3020.7032.1052.70

3.446.95

11.0010.2329.6743.0066.64

109.30

5.8711.8518.7531.1050.6273.30

113.70186.50

9.1118.3829.1040.2678.50

113.70176.40289.50

13.3626.9642.6770.78

115.20166.80258.70424.54

18.8338.0060.1299.74

162.30235.00360.60598.20

27.5455.5587.90

145.86237.40343.70533.00874.80

40.5081.70

129.30214.50349.10505.50784.00

1286.50

Size10

Opening (%)20 30 40 50 60 70 80 90 100

1”1-1/2”2”2-1/2”3”4”5”6”

48

213355

108163260290

6580

100125150200250300350

613335288

172260416465

11245792

155301455728815

163482

131221430650

10401160

2247

115183309602910

14561625

2655

135216365710

107317161915

4289

217347586

1140172327563074

60126308491829

1613243839004350

74155377603

10171978299047845336

80168410655

11052150325052005800

Size10

Opening (%)20 30 40 50 60 70 80 90 100

2-1/2” 3” 4” 5” 6” 8”10”12”14”

Opening (%)

Cv

(%)

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

Opening (%)

Max

imum

Cv

(%)

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

(*7) Not in ISA standard

5 6

The accurate and stable control with JDV’s Electric Control Valves The accurate and stable control with JDV’s Electric Control Valves ensures the reliable and profitable operation of your plant.ensures the reliable and profitable operation of your plant.

JSB Series V-Port Segment Control Valve JTD Series Double Offset Butter�y Valve

2540506580

100125150200

2540506580

100125132200

102114124140(*7)

165194254(*7)

229243

108134142151164193215232279

708492

101112134154171198

2.50 3.754.805.519.11

14.8525.9028.2245.20

1”1-1/2”2”2-1/2”3”4”5”6”8”

DIMENSIONS FOR WAFER TYPE (JSB-W1) Unit : mmSize L H1 H2 Wt (Kg)φA1

2540506580

100125150200

2540506580

100125132200

127165178190203229254267292

108134142151164193215232279

708492

101112134154171198

3.75.87.5

11.812.823.031.538.062.5

1”1-1/2”2”2-1/2”3”4”5”6”8”

DIMENSIONS FOR FLANGED TYPE (JSB-A1 SERIES JIS-10K) Unit : mmSize L H1 H2 Wt (Kg)φA1

6580

100125150200250300350

484854575764718192

74.688.9

114.3130.0158.8209.6254.0304.8343.0

168158190203208235295325399

181818182325364050

5.05.88.2

10.613.422.036.053.069.0

2-1/2” 3” 4” 5” 6” 8”10”12”14”

DIMENSIONS FOR WAFER TYPE 150LB (300LB also available) Unit : mmSize φD2

59.073.195.6

111.4141.5188.0235.9281.5314.3

φD1 H1116109122132144181211246286

H2 H3 Wt (Kg)L6580

100125150200250300350

484854575764718192

74.688.9

114.3130.0158.8209.6254.0304.8343.0

168158190203208235295325399

181818182325364050

6.57.8

12.014.018.029.048.073.0

120.0

2-1/2” 3” 4” 5” 6” 8”10”12”14”

DIMENSIONS FOR LUG TYPE 150LB (300LB also available) Unit : mmSize φD2

59.073.195.6

111.4141.5188.0235.9281.5314.3

φD1 H1116109122132144181211246286

H2 H3 Wt (Kg)L

Wafer Type Flanged Type Wafer Type Lug Type

Disc centerline

Ste

m c

ente

rline

2nd Offset

1st Offset

Pipe centerline

Pip

e ce

nter

line

φ

D1

φD

2

L

H2

H1

H3

φ

D1

φD

2

L

H2

H1

H3

H1

L

H2

φA

1

H1

L

H2

φA

1

SegmentV-notch designoptimizing the �owcharacteristicsand providinga shearing function.

Inherent Flow Characteristics

Cv Values

Inherent Flow Characteristics

Cv Values

The Double Offset Geometry

1st OffsetThe centerline of the stem is moved behind the seat axis, in order to offer an optimum sealing contact.

2nd OffsetThe centerline of the disc is offset from the centerline of the valve body, allowing the disc seal to move away freely during the opening.

0.010.020.040.060.100.150.230.38

0.521.061.682.794.546.57

10.2016.70

1.663.355.308.80

14.3020.7032.1052.70

3.446.95

11.0010.2329.6743.0066.64

109.30

5.8711.8518.7531.1050.6273.30

113.70186.50

9.1118.3829.1040.2678.50

113.70176.40289.50

13.3626.9642.6770.78

115.20166.80258.70424.54

18.8338.0060.1299.74

162.30235.00360.60598.20

27.5455.5587.90

145.86237.40343.70533.00874.80

40.5081.70

129.30214.50349.10505.50784.00

1286.50

Size10

Opening (%)20 30 40 50 60 70 80 90 100

1”1-1/2”2”2-1/2”3”4”5”6”

48

213355

108163260290

6580

100125150200250300350

613335288

172260416465

11245792

155301455728815

163482

131221430650

10401160

2247

115183309602910

14561625

2655

135216365710

107317161915

4289

217347586

1140172327563074

60126308491829

1613243839004350

74155377603

10171978299047845336

80168410655

11052150325052005800

Size10

Opening (%)20 30 40 50 60 70 80 90 100

2-1/2” 3” 4” 5” 6” 8”10”12”14”

Opening (%)

Cv

(%)

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

Opening (%)

Max

imum

Cv

(%)

100

90

80

70

60

50

40

30

20

10

00 10 20 30 40 50 60 70 80 90 100

(*7) Not in ISA standard

5 6