LPS

LPS

Limitorque's LPS heavy-duty pneumatic scotch yoke actuator is the innovative, reliable choice for on/off, inching and modulating automation applications on quarter-turn medium-to-large sized valves in general and protective services for the oil & gas market. LPS actuators provide up to 550 kNm (405 659 ft-lb) of heavy-duty torque. Enhanced performance is achieved by using a superior Scotch yoke support design that significantly reduces transverse loads. LPS actuators feature modular construction to minimize repair time and initial cost while maximizing process availability.

Brand: Limitorque
Category: Scotch Yoke
Type Scotch Yoke
Action Rotary
Fluid Power Pneumatic
Sizes 15, 20, 25, 30, 35, 40, 50, 60
Maximum Output 550 000 Nm (405 659 ft-lb)
Pressure Rating 174 psig
Fail Safe Operation Last, Closed, Open
Enclosure Nodular Ductile Cast Iron, Carbon Steel ENP Lined, Stainless Steel
Seals NBR Buna, Viton®, and Fluorosilicone
Temperature Range -60°C to 160°C (-76°F to 320°F) Seal Dependent
Manual Override Jackscrew Light, Enclosed Jackscrew, Beverl Gear, Hydraulic Manual Hand Pump
Options Control Panel, Positioners, Limit Switch Box

The LPS actuator is suitable for use in Safety Integrated Systems in accordance with IEC 61508 up to and including SIL Level 3

Efficient design based on computational modelling and extensive experimental validation provides high performance with reduced size, weight, and consumption

Symmetrical and canted scotch yoke types perfectly fit individual valve torque requirements

Rugged heavy-duty fabricated carbon steel build epoxy painted and Electroless Nickel Plated (ENP) cylinders provide maximum protection against corrosion

Dust/water proofing to IP66/IP66M and IP67/IP67M according to EN 60529

25-year design life and maintenance intervals up to six years, depending on service conditions, proper installation, operation and maintenance, exceed industry expectations

Modular construction allows easy on-site maintenance without special tools and without removal from the valve

Spring return and double acting configurations available (fail open, fail close and fail-in-place capability)

Jackscrew, Geared and Hydraulic Manual Operators available on request; availability will vary based on size

High and Low temperature versions available: +160°C to -60°C (320°F to -76°F)

Wide range of feature and function customizations, including high-speed and high-cycle versions, are available