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.
STANDARDS
ISO 9001 and 5211
EN 15714, 60529, 13906, 13445 and 12570
IEC 61508 SC3
ATEX 2014/34/EU
DESIGN RANGE
Torque Rating Range: Up to 300000 Nm (221 270 ft-lb)
Pressure Rating:
Operating Pressure: 2.5 to 12 barg (36.3 to 174 psig)
MAWP = 12 barg (174 psig)
ENVIRONMENTAL ENCLOSURES
IP 66/67 and IP 66M/67M
ATEX Ex II 2GD
NBR Buna, Viton®, and fluorosilicone sealing
FEATURES & BENEFITS
- Efficient design based on computational modeling 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/waterproofing to IP66/IP66M and IP67/IP67M according to EN 60529
- 25-year design life and maintenance intervals of 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
CONFIGURATIONS
- Symmetric and canted scotch yoke mechanisms as standard. Customized yoke profiles available as an option
- Spring return and double-acting configurations available (fail open, fail close, and fail-in-place capability)
- Jackscrew, Geared, and Hydraulic Manual Operators are 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)
- PED 2014/68/EU and & ASME BPVC VIII div. 1 versions available
- Standard or special painting upon request
- A wide range of feature and function customizations, including high-speed and high-cycle versions, are available
