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SY Series Ledeen Pneumatic/Hydraulic Actuator
Brand: Cameron
SY series LEDEEN* actuators provide increased flexibility through consistent engineering design and efficient modularity.
Double-acting, spring fail-close or -open, and manual override options are available on the pneumatic and hydraulic products.
Features- Availability as double-acting or spring-return configurations
- Torque outputs to 5,700,000 lbf.in (644,000 Nm)
- Open and close travel stops that provide ±3° minimum
- Scotch yoke mechanism generates powerful opening and closing torque outputs
- Steel-fabricated frame that provides rugged foundation of modular assemblies
- Chrome-plated side-load bar with guide block for effective elimination of piston rod deflection
- Bronze bushing interfaces that provide low-friction support of sliding and rotating components
- Aluminum bronze sliding blocks for a low-friction, low-stress pin connection
- Steel cylinder assembly that provides robust pressure containment for all conditions
- Plated cylinder ID to ensure sealing surface with excellent corrosion resistance
- Nitrile rubber piston seal configurations designed specifically for pneumatic and hydraulic applications
- Composite guide band on piston to provide low-friction guidance and support
- Steel spring cartridge fully enclosed from environmental conditions
- Seal-welded design construction that provides improved personnel safety
- Epoxy-coated prestressed springs that provide consistent performance with corrosion protection
Specifications
Brand
Actuator Type
- Spring Return
Approvals & Certifications
- IEC 61508: 2000
- ISO 9001: 2000
- PED 97/23/CE
- SIL 3 - Integrity
- Lloyd's Register LRQA
- SI 825
- TRCU
- TÜV (Technischer Uberwachungsverein)
Bushing Material
- Bronze
Flange Material
- Carbon Steel
Materials of Construction
- Alloy Steel - Travel Stop, Pin, Tie Rod, Scotch Yoke, Guide bar
- Aluminum Bronze - Sliding Block
- Carbon Steel - Guide Block, Cylinder, Frame
- Graphite - Guide Band
- Teflon - Guide Band
Override
- Manual Override
Piston Material
- Alloy Steel
- Carbon Steel
Pressure Range
- psig: 145 to 3,000 (kPa: 1,000 to 20,200, bar: 10 to 202) - Hydraulic
- psig: 40 to 175 (kPa: 300 to 1,200, bar: 3 to 12) - Pneumatic
Seal Material
- Buna O-Ring
- Buna Quad-Ring
- Fluorosilicone Low-Temperature Applications to -60° C (-76° F)
- Viton High-Temperature Applications to 200° C (392° F)
Spring Material
- Alloy Steel
- Carbon Steel - Spring Cartridge
Temperature Range
- -29° to 80° C (-20° to 176° F) - Pneumatic, Hydraulic
Torque Output
- 3,600,000 in/lbs (400,000 Nm)
Yoke Design
- Canted
- Symmetrical
- ON/OFF Control or Modulating Control of Any Quarter-Turn Operated Valve