6 V

SERIES VBC PNEUMATIC CYLINDER ACTUATORS

Metso`s Neles series VBC actuators are developed for linear valves. The VBC double acting cylinder type actuators are designed for use in both modulating control and on-off service. They provideheavy duty and reliable operation and are well suited for many different kind of applications. The high performance internal coating resists wear and corrosion and the replaceable inner parts guarantee a long life cycle.When "stay put" failure mode is required, a double acting actuator with lock up valve is the correct choice. If another failure mode is required, a double acting actuator with transfer valve and a volume tank should be selected. The series VBC pneumatic cylinder actuators offer a built-in volume chamber or independent volume tank to provide failure in either the open or closed position. The built-in volume chamber provides minimum one time stroking when the instrument air fails.

Construction□ Heavy duty actuator designed for linear modulating

control and on/off applications.□ Heavy duty piston rod and cylinder are guided by anti-

corrosive cylinder with self lubricating piston sealwhich ensures efficient operation and improves thetransfer of energy to the valve stem.

□ The actuators incorporate three stages of internal andexternal corrosion resistance coating against severeweather, chemical and petroleum environments.

□ Optional handwheel for manual operation.□ Optional volume tank or built-in volume chamber.

Simple and cost effectiveA specially designed piston and cylinder in the main actu-ator drive module ensures simple and accurate alignmentof modules when assembling the actuator or performingmaintenance.

High-and-low temperature constructionThe standard unit can be used in temperatures up to 70 °C(158 °F). High temperature construction is available fortemperatures up to 120 °C (248 °F). The standard unit canbe used down to -20 °C (-4 °F). A low temperature designis available for -40° to +70 °C (-40° to 158 °F ), arctic serviceplease refer type coding.

BC 20 EN • 11

High cycle option For applications where very fast and high sequencyoperation is required.

ATEX compatibilityActuator construction ATEX approved.

Oversized cylinder optionsThe oversized cylinders (VBC 60, 75, 602, 752) are usedwhenever the supply pressure is limited, thus the actua-tors can achieve the required torques with a lower supplypressure level.

Accessories and control devicesA variety of accessories are available including Neles posi-tioners and limit switches, solenoid valves, transducers,relays, boosters and volume tanks and built-in volumechambers etc.

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VBC Cylinder actuators design details

VBC Specifications

Note:1. Maximum stroke: Available to extend according to the required specifications.2. The volume is based on above maximum stroke.3. The thrust values are not included other considerable factors.

VBC Stroking times

Note:1. Mounted with ND 9200 smart positioners and Air set only2. Case-1: when applied B72G-2AS-980 Air set

Case-2: when applied YT-200BN210 Air set3. Air supply pressure: 6.0 barg4. Stroking time accuracy: ± 10 %

VBC Temperature ranges

Note:1. Temperature: Ambient temperature2. Type code reference: Please see in page 13 (materials).3. Other low temperature range: Please contact Metso

VBC Air supply connections

Note:1. Maximum supply pressure: 10 bar / 145 psi

Actuator size

Piston dia.

Stem dia.

Effect Area VolumeActuator stem

size (Φ)Maximum

stroke

Thrust at Pressure Max. allowable pressurePressure Thrust

(mm) (mm) cm2 inch2 dm3 inch3 mm inch mm inch bar psi N lbs bar psi

#32 315 40 767 119 9.2 561.5 40 1.6 120 4.72

4 58 29136 6550

10 145

6 86 43704 9825

8.5 121 61915 13919

#40 400 50 1237 192 22.3 1358.8 55 2.2 180 7.09

4 58 47006 10567

6 86 70509 15851

8.5 121 99888 22456

#50 500 50 1944 301 35.0 2135.2 55 2.2 180 7.09

4 58 73867 16606

6 86 110800 24909

8.5 121 156967 35288

OTHER SIZES Contact Metso

SizeStroke (mm)

ND ModelStroking time(Sec.)

Load Vent Load Vent

# 32

60 ND 9206 6 7 8 9

80 ND 9206 8 8 10 10

100 ND 9206 10 10 12 12

# 40

80 ND 9206 8 10 11 12

100 ND 9206 10 11 12 13

120 ND 9206 11 12 14 15

# 50

100 ND 9206 13 13 16 16

120 ND 9206 15 14 18 18

140 ND 9206 17 16 20 19

# 60

120 ND 9206 18 16 22 22

140 ND 9206 21 19 26 24

180 ND 9206 25 21 30 28

# 70

140 ND 9206 20 19 29 24

180 ND 9206 24 22 34 28

240 ND 9206 28 27 40 36

# 80

180 ND 9206 31 30 42 38

240 ND 9206 35 31 48 42

280 ND 9206 39 34 54 46

Description Standard VBC High. temp Low. temp. Arctic

Temp. range -20 °C to 70 °C

-20 °C to 120 °C

-40 °C to 70 °C

-55 °C to 70 °C

Type code ref. (sign 8) A H L S

Standard 3/4" NPT for VBC #30, #401" NPT for VBC #50

Optional Contact Metso

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S E R I E S V B C P N E U M A T I C C Y L I N D E R A C T U A T O R S6 V B C 2 0 E N

VBC, standard parts and materials

PARTS & MATERIALS

ITEM Q'ty Description Material Spare Remark1 1 YOKE ASTM A216 gr.WCB

1A 8 HEXAGON SCREW ISO 3506 A2-701B 8 WASHER AISI 3041C 8 SPRING WASHER AISI 3042 1 SLIDE BEARING BRONZE

2A 1 RETAINER RING DIN 17222-C67 VBC 323 1 COVER PLATE AISI 304 VBC 40,50

3A 4 HEXAGON SCREW ISO 3506 A2-70/80 VBC 40, 506 1 CYLINDER BASE EN 1563-GJS-400-158 1 CYLINDER PIPE EN 1706 G-Si10Mg+ANODIZED9 1 PISTON EN 1561-GJL-200

10 1 PISTON ROD PISTON ROD STEEL+HCr15 1 HEXAGON NUT ISO 3506 A2-7016 1 O-RING NITRILE, NBR Cat 1

16A 1 O-RING NITRILE, NBR Cat 1 VBC 5018 1 O-RING NITRILE, NBR Cat 1

18B 2 KEY AISI 304+HCr18C 4 SOCKET HEAD SCREW ISO 3506 A2-7019 2 O-RING NITRILE, NBR Cat 124 3 PISTON RING UHMWPE VBC 50-4ea26 1 LIMIT SCREW ISO 3506 A2-7031 10 HEXAGON SCREW ISO 3506 A2-70 VBC 32

31 2 STUD ISO 3506 A2-70 VBC 326 STUD EN 10083-1.7218+ZINC VBC 40, 50

33A 1 O-RING NITRILE, NBR Cat 1 VBC 40, 5039 1 ID PLATE POLYESTER44 1 CYLINDER END EN 1563-GJS-400-15

44A 1 WARNING PLATE POLYESTER45 2 HEXAGON NUT ISO 3506 A2-70 VBC 3245 6 HEXAGON NUT SS STEEL or CARBON STEEL+ZINC VBC 40, 5046 6 WASHER CARBON STEEL+ZINC VBC 40, 50

48 1GEAR BOX

(VBC 32: SBWG-02MT)(VBC 40, 50: SBWG-03MT)

JIS G4051-S45CASTM A53PLASTIC

DUCTILE IRON81 1 GEAR BOX COVER ASTM A105

81B 8 HEXAGON SCREW ISO 3506 A2-7081C 8 WASHER AISI 30481D 8 SPRING WASHER AISI 30481E 8 HEXAGON SCREW ISO 3506 A2-7081F 8 WASHER AISI 30481G 8 SPRING WASHER AISI 30488 1 LIMITER AISI 304

88A 4 HEXAGON SCREW ISO 3506 A2-7088B 4 WASHER AISI 30488C 4 SPRING WASHER AISI 30490 1 GEAR PIPE AISI 316L93 1 PIN A564 gr.630 H110094 1 TAPER CHAIN STAINLESS STEEL

94C 1 SPLIT PIN CARBON STEEL+ZINC95 1 HOLDER AISI 304

95A 2 HEXAGON SCREW DIN 267 PART 11 A2-7095B 2 WASHER AISI 30499 2 LIFTING EYE NUT CARBON STEEL

81E

81G

81F

81

6

95B

95A

95

94

94C

93

without handwheel with handwheel

VBC 32

DETAIL 'A'

10

24

18

9

15

18C

18B

90

39

8

19

44

44A

33A

31

26

99

1

1A

1C

1B

88A

88C

88B

88

48

81B

81D

81C

'A'

VBC 40

VBC 50

16

3A

3

16A

2

16

2

3

3A

16

2

2A

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VBC cylinder actuator dimensions

(Unit: mm)

(Unit: inch)

(Unit: mm)

(Unit: inch)

A

B

ØDE

G

F

A

A SECTION A-A

ØC

A

A SECTION A-A

A

ØC

ØDE

B

G

F

Size Stroke A B C D E F GWeight

(Kg)

VBC32 40-120 153 769 315 40 M33X2.0 3/4" NPT 392 96

VBC40 40-180 185 1054 400 50 M33X2.0 3/4" NPT 499 190

VBC50 40-180 185 1066 500 50 M33X2.0 1" NPT 610 297

Size Stroke A B C D E F GWeight

(lbs)

VBC32 1.5-4.7 6.1 30.8 12.6 1.6 M33X2.0 3/4" NPT 15.7 211

VBC40 1.5-7.0 7.4 42.2 16.0 2.0 M33X2.0 3/4" NPT 20.0 418

VBC50 1.5-7.0 7.4 42.6 20.0 2.0 M33X2.0 1" NPT 24.4 653

Size Stroke A B C D E F GWeight

(Kg)

VBC32 40~120 155 1090 315 40 M33X2.0 3/4" NPT 392 155

VBC40 40~180 178 1405 400 50 M33X2.0 3/4" NPT 499 275

VBC50 40~180 178 1415 500 50 M33X2.0 1" NPT 610 592

Size Stroke A B C D E F GWeight

(lbs)

VBC32 1.5-4.7 6.2 43.6 12.6 1.6 M33X2.0 3/4" NPT 15.7 341

VBC40 1.5-7.0 7.1 56.2 16 2 M33X2.0 3/4" NPT 20.0 605

VBC50 1.5-7.0 7.1 56.6 20 2 M33X2.0 1" NPT 24.4 1302.4

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HOW TO ORDERPneumatic Cylinder Actuator, Linear Type, Series VB

ACTUATOR CONSTRUCTIONS

MATERIALS

OTHERS

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14.

VB C 32 X 080 A E A K A X D X A

1. ACTUATOR SERIES

VB Pneumatic cylinder actuator, linear type

2. FUNCTION CODE

C Double acting (Springless)

3.ACTUATOR SIZE

Cylinder inner diameter

32 Ø315 mm

40 Ø400 mm

50 Ø500 mm

4. SPRING RANGE

X Not applicable

5.STROKE

VB_32 VB_40 VB_50

040 IQI IQI IQI

050 IQI IQI IQI

060 STD IQI IQI

070 STD STD STD

080 STD STD STD

090 IQI IQI IQI

100 IQI IQI IQI

120 STD STD STD

140 IQI STD STD

160 IQI STD STD

180 IQI STD STD

YYY Contact Metso for special stroke

6. CYLINDER MATERIAL

A Aluminium

Optional cylinder material

S Carbon steel + HCr (Offshore)

7. PISTON MATERIAL

E EN 1561-GJL-200

Optional piston material

S EN 1561-GJL-400 (Arctic version)

8.SEAL MATERIAL

Material Description

A Nitrile rubber General, -20 to 70 °C

Optional seal material

H Viton (Fluorocarbon rubber) -20…+120 °C

L ECO (Epiclohydrin rubber) -40…+70 °C

S Arctic version -55…+70 °C

9. BOLTING MATERIAL

K SS for VB_32, CS+Zinc plating for VB_40/50

Optional bolting material

A CS+Zinc plating for steel cylinder (Offshore)

10. POSITION LIMITATION

A General construction

11. EXTERNAL OVERRIDE OPTION

X Not applicable

A Handwheel, side mounted

Y Special mounting side or special H/W construction

12.AIR SUPPLY CONNECTION

Connection size Actuator size

D 3/4" NPT VB_32/40

E 1" NPT VB_50

13. OPTIONS

X Not applicable

Y Special

14. MODEL CODE

A Original model

TECHNICAL BULLETIN 11/18 5

Metso Corporation Töölönlahdenkatu 2, PO Box 1220, 00100 Helsinki, FinlandTel. +358 20 484 100http://contact.metso.com/

Metso Flow Control Inc.Vanha Porvoontie 229, P.O. Box 304, FI-01301 Vantaa, Finland.Tel. +358 20 483 150. Fax +358 20 483 151

www.metso.com/valves

Subject to change without prior notice. Product names in thisbulletin are all trademarks of Metso Flow Control Inc.