LEDEEN HS Series Compact Actuators Actuator Brochure
User Manual: Resource Library
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LEDEEN HS Series
Compact actuators
LEDEEN HS Series Compact Actuators
Customer-focused solutions
■ Save valuable space with one of the smallest compact actuators on the market
■ Get the best power transmission technology with the high-performance helical spline
■ Set the valve position precisely with independently adjustable travel stops
■ Experience the convenience of single-source integrity with Cameron automated valves
■ Keep your equipment in peak performance with Cameron services
Solid engineering and manufacturing excellence
■ The LEDEEN Valve Automation Center of Excellence located in Italy
has an actuation heritage dating back to 1948.
■ Because Cameron designs and manufactures valves, actuators,
and control solutions, our customers benefit from a single point
of accountability.
■ The LEDEEN* compact actuator incorporates proven technology first
developed in 1966 with the power piston, many of which are still in
operation today.
Hydraulic double-acting actuator.
The power piston with torque outputs developed to
1,500,000 in.lbf (photo circa 1966).
Hydraulic spring-return actuator.
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Features and Benefits
Space savings
■ Save valuable space with the LEDEEN compact actuator
■ Significantly reduce piping and support structures in new manifold designs
Independently adjustable travel stops
Experienced Cameron engineers designed an integrated adjustable
travel stop subassembly for precise valve positioning (patent pending).
■ Independently adjustable open and close travel stops
■ Precise valve setting to fully open for optimized flow and to fully
closed for positive shut-off position
■ External access to travel stop adjustment
■ Setting retention with an integrated locking mechanism
Double-acting actuators Spring-return actuators
Size comparison—equivalent scotch yoke actuator on 8-in ANSI 2500.
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Typical applications
The LEDEEN compact hydraulic actuator is a quarter-turn actuator
ideal for space-constrained installations, including
■ floating production, storage, and offloading (FPSO) vessels, platforms,
and offloading buoys
■ drilling diverters, carbon dioxide (CO), and liquid mainlines
■ mining operations.
Standard features
■ Available as double acting or spring return
■ Torque outputs to 340,000 in.lbf [38,500 N.m]
■ Open and close travel stops provide ± 3° minimum adjustment
■ Helical spline torque-generating mechanism
■ Low-friction spline treatment
■ Rugged alloy steel frame
■ Buna piston seals
■ Fully welded spring cartridge subassembly
■ Epoxy-coated springs
■ Local position indicator
■ Adaptable to any quarter-turn valve topworks
Available options
■ Hand pump or gearbox overrides
■ Mechanical partial stroke test device (local or remote operation)
■ Special seals for low-temperature applications to −76degF [−60degC]
Hydraulic double acting actuator.
Hydraulic spring return actuator.
Standard Product Characteristics
Actuator Model Temperature Range,
degF [degC]
Gauge Pressure Range,
psi [bar]
HS −22 to 185 [−30 to 85] 145 to 3,000 [10 to 207]
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Standard Construction
Hydraulic Double-Acting Actuator
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8
7
6
5
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3
2
1
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Item Description Material
1Top flange Alloy steel
2 Frame Alloy steel
3 Piston Alloy steel
4Torque hub Alloy steel
5Bottom flange Alloy steel
6 Bearing Alloy steel
7Guide band Teflon® PTFE
8 Seal NBR and PTFE
9Travel stop Alloy steel
10 Position indicator Stainless steel
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Hydraulic Spring-Return Actuator
Item Description Material
1Top flange Alloy steel
2 Frame Alloy steel
3 Piston Alloy steel
4Torque hub Alloy steel
5Bottom flange Alloy steel
6 Bearing Alloy steel
7Guide band Teflon PTFE
8 Seal NBR and PTFE
9Travel stop Alloy steel
10 Position indicator Stainless steel
11 Spring cartridge Carbon steel
12 Spring Spring steel
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8
7
6
5
2
3
4
1
12
11
10
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Model Number Designation
Cameron offers customizable actuators from the frame type to the override options. An example model
number is shown below to specifically identify each variable for selection.
Certifications
The LEDEEN compact actuator complies with the following
industry standards:
■ ISO 9001:2000
■ Pipeline Safety Regulation SI 1996/825
■ ATEX Directive 2014/34/EU
■ SIL IEC 61508
■ IP IEC 60529
■ 97/23/CE (PED).
Technical Data
For additional data such as torque charts and dimensional drawings, refer
to the LEDEEN compact actuator—HS Series technical data package.
HS 3.5 H 1 - SR C A - XXX‡
Example
Frame Size
1.0–38.5
Frame Type
HS
Product Type
H Hydraulic
Power Cylinder
1–3
Actuator Type
SR Spring return
DA Double acting
Fail Position†
C Closed
O Open
Spring Size†
A, B
Special Option‡
Advised by LEDEEN if required
† Only for spring-return models
‡ Only if required
TC9315
LEDEEN Compact Actuator
HS Series - Hydraulic Actuator
Technical Data
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cameron.slb.com/valves
LEDEEN HS Series
*Mark of Schlumberger
Other company, product, and service names
are the properties of their respective owners.
Copyright © 2016 Schlumberger. All rights reserved. 16-VL-185148
