LEDEEN SY Series Pneumatic & Hydraulic Actuators Brochure

LEDEEN SY Series

Pneumatic and Hydraulic Actuators

TYPICAL APPLICATION

For on/off or modulating control of any quarter-turn

operated valve.

MODULAR ASSEMBLY

Consistent engineering design and efﬁcient modular assembly

allows increased ﬂexibility to be achieved. Double acting,

spring fail close/open or manual override operations are

combinations that are readily obtainable on the pneumatic

and hydraulic products.

Hydraulic Quarter-turn Actuator

Pneumatic Quarter-turn Actuator

Frame

Pneumatic Cylinder

Spring Cartridge

Hydraulic Cylinder

Symmetric Yoke Canted Yoke

LEDEEN® SY Series

STANDARD FEATURES

• All models available as double acting or spring return

conﬁgurations

• Torque outputs to 3,600,000 in-lb (400,000 N•m)

• Open and close travel stops provide ±3 degrees minimum

• Scotch yoke mechanism generates powerful opening and

closing torque outputs

• Steel fabricated frame provides rugged foundation of

modular assemblies

• Chrome-plated side load bar with guide block for

effective elimination of piston rod deﬂection

• Bronze bushing interfaces provide low-friction support of sliding

and rotating components

• Aluminum bronze sliding blocks for a low-friction, low-stress pin

connection

• Steel cylinder assembly provides robust pressure

containment for all conditions

• Nickel-plated cylinder ID ensures sealing surface

with excellent corrosion resistance

• Buna piston seal conﬁgurations speciﬁcally designed for

pneumatic and hydraulic applications

• Composite guide band on piston provides low-friction guidance

and support

• Steel spring cartridge is fully enclosed from

environmental conditions

• Epoxy-coated prestressed springs provide consistent

performance with corrosion protection

• Seal-welded design construction provides improved

personnel safety

STANDARD PRODUCT CHARACTERISTICS

TYPE TEMPERATURE RANGE PRESSURE RANGE

Pneumatic -22˚ F to 212˚ F

(-30˚ C to 100˚ C)

40 to 175 psig

(3 to 12 barg)

Hydraulic 145 to 3000 psig

(10 to 202 barg)

1

Pneumatic Spring Return Actuator

Hydraulic Spring Return Actuator

PNEUMATIC ACTUATOR STANDARD CONSTRUCTION

2

Item Description Material

Travel Stop Alloy Steel

Guide Bar Alloy Steel/Chrome Plated

Pin Alloy Steel

Guide Block Carbon Steel

Sliding Block Aluminum Bronze

Cylinder Carbon Steel

Tie Rod Alloy Steel

Flange Carbon Steel

Guide Band Teflon and Graphite

Seal Buna O-ring

Piston Carbon Steel

Piston Rod Alloy Steel

Scotch Yoke Alloy Steel

Bushing Bronze

Frame Carbon Steel

Spring Cartridge Carbon Steel

Spring Alloy Steel

1

2

3

4

5

6

7

8

9

10

12

13

11

14

15

16

17

Pneumatic Double Acting Actuator

2

1

15

3 4 567

8

1

14 13

Pneumatic Spring Return Actuator

16 17

1112 10

9

HYDRAULIC ACTUATOR STANDARD CONSTRUCTION

3

Item Description Material

Travel Stop Alloy Steel

Guide Bar Alloy Steel/Chrome Plated

Pin Alloy Steel

Guide Block Carbon Steel

Sliding Block Aluminum Bronze

Cylinder Carbon Steel

Tie Rod Alloy Steel

Flange Carbon Steel

Guide Band Teflon and Graphite

Seal Buna Quad-ring

Piston Carbon Steel

Piston Rod Alloy Steel

Scotch Yoke Alloy Steel

Bushing Bronze

Frame Carbon Steel

Spring Cartridge Carbon Steel

Spring Alloy Steel

Hydraulic Double Acting Actuator

Hydraulic Spring Return Actuator

78

1

16 17

1112 10

9

6

2

1

15

3 4 5

14 13

1

2

3

4

5

6

7

8

9

10

12

13

11

14

15

16

17

• Jackscrew override

• Hand pump override

• Fluorosilicone seals for low-temperature

applications to -76˚ F (-60˚ C)

• Viton® seals for high-temperature

applications to 392˚ F (200˚ C)

STANDARD OPTIONS

CERTIFICATIONS

Cameron’s LEDEEN SY Series of actuators comply

with many industry standards.

• ISO 9001:2000, Quality

• PED 97/23/EC, Design

• SI 825, Safety

• IEC 61508:2000, Integrity (TUV/SIL3)

• TR CU, Safety and Quality

4

Pneumatic Spring Return Actuator

with Jackscrew Override

Pneumatic Double Acting Actuator

with Jackscrew Override

Pneumatic Double Acting Actuator

with Hand Pump Override

Cameron offers customizable actuators from the frame type

to the override options. A sample of the actuator selection

process is shown below. Starting with Step 1, Frame Type,

the actuator components needed to ﬁt the customer’s

requirements are built. An example model number is shown

below, which speciﬁcally identiﬁes each variable for selection.

MODEL NUMBER DESIGNATION

Although checked for accuracy at the time of printing, Cameron’s commitment of continuous improvement and innovation may have resulted in product enhancements or modiﬁcations not currently shown.

5

TECHNICAL DATA

For additional technical data such as torque charts,

dimensional drawings, etc., refer to the LEDEEN SY

Series actuators technical data packages or contact

LEDEEN@c-a-m.com.

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Technical Data

SY Series

Description

Cameron customizes actuators to meet customer needs.

The SY series of quarter-turn actuators are offered as

hydraulic and pneumatic, double-acting and spring return.

SY Pneumatic

& Hydraulic Actuators

SY 16 48 SR C2 HMOA

P

7

1

2

5

6

7

8

9

1 2 357 86 94

4

3

Manual Override Option

(if required)

HMO: Hand Pump

JS: Jackscrew

Spring Cartridge Size

(only for spring return models)

1-5, A, B

Fail Position

(only for spring return models)

C: Closed

O: Open

Actuator Type

(only for spring return models)

SR: Spring Return

Power Cylinder Size

Pneumatic: 28 to 120

Hydraulic: 4 to 28

Frame Type

SY

Frame Size

8 to 32

Product Type

P: Pneumatic

H: Hydraulic

Yoke Type

A: Canted

S: Symmetric

Viton and Zytel are registered trademarks of E.I. DuPont De Nemours & Company | SWP 1M 4/14 AD00687V

3250 Briarpark Drive, Suite 300

Houston, TX 77042

USA

Toll Free 1 800 323 9160

Via Gandini 4

27058 Voghera, PV

Italy

Tel 39 0383 343311

Learn more about LEDEEN actuators at:

www.c-a-m.com/LEDEEN or

email LEDEEN@c-a-m.com

www.c-a-m.com/valveautomation or

email valveautomation@c-a-m.com

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Viton and Zytel are registered trademarks of E.I. DuPont De Nemours & Company | SWP 1M 4/14 AD00687V

HSE Policy Statement

At Cameron, we are committed ethically, financially and personally to a

working environment where no one gets hurt and nothing gets harmed.

LEDEEN SY Series Pneumatic & Hydraulic Actuators Brochure

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