Manufactured by Lovejoy Controls Corporation (Waukesha, Wisconsin, USA) since 1978. ACC delivers turnkey control modernization, replacing failure-prone EHC hydraulics with roller-screw electric actuators, direct electromagnetic trip (EMA) systems, and 100% digital ultrasonic rotor deflection monitoring (UDP).
Engineered retrofit packages that eliminate lubricating and synthetic EHC hydraulics from speed modulation and trip mechanisms across API-611 general purpose, API-612 special purpose, and power generation feed pump turbines.
For Terry, Worthington, Elliott, Dresser-Rand, and Turbodyne turbines. Replaces chronic weak links: mechanical overspeed bolts and linkage-driven governor valves.
For GE, DeLaval, Shin Nippon, Siemens, Elliott, and Westinghouse multi-valve units. Eliminates contaminated lube oil servo-motor failures.
Why maintain an entire high-pressure EHC skid, hydraulic pumps, coolers, and flammable synthetic oil just to position steam turbine valves?
Lovejoy's Electro-Magnetic Actuator (EMA) is integrated directly into emergency stop/trip valves and Trip Throttle Valves (TTV). Combined with Lovejoy's integrated 2oo3 Trip Manager and Electric Reset Controllers, it completely removes hydraulic dependency from the emergency safety loop.
The first major sensing breakthrough in turbine supervisory instrumentation since 1965: 100% digital networked architecture powered by Ultrasonic Displacement Probes (UDP).
Conventional 70-year-old eddy-current proximity probes only measure shaft position at the journal bearings. Inside hydrodynamic and tilting pad bearings, shaft movement is physically damped and clamped by the oil film.
As proven in EPRI study 1010214, virtually all turbine steam seal impact damage occurs during cold and warm startups without any supervisory system detection, causing enlarged clearances and hundreds of thousands of dollars in lost fuel efficiency.
Lovejoy's Ultrasonic Displacement Probes (UDP) directly measure actual mid-span rotor bow and thermal deflection without shaft interference from dents or nicks, providing clear Go / No-Go startup advisories to plant DCS operators.
Direct shaft bow detection preventing steam seal impact during startup roll.
High-accuracy shaft eccentricity measurement without analog drift.
Digital displacement, phase, and harmonics analysis without EMI disturbance.
Precise setting and monitoring of thrust bearings under dynamic load.
Eliminates miles of analog shielded cable, marshalling racks, and filter cards.
Turnkey engineering execution delivered by ACC across the Kingdom, backed by Lovejoy's Waukesha test facility.
On-site audit of obsolete OEM controls, speed/load hunting, oil contamination, trip reliability, and part obsolescence with actionable engineering reports.
Complete electrical and mechanical mounting adaptation. 100% pre-assembly in test shop with load and speed feedback simulation under application conditions.
Field rotor trim balancing under actual thermal and steam load conditions using portable UDP deflection kits—avoiding costly off-site shop balancing delays.
Supervised mechanical installation, hot commissioning, system drawings, renewal parts catalogs, and comprehensive plant maintenance training.
Proven across defense, nuclear, fossil, and petrochemical applications worldwide.
Oil & Gas
Mechanical governors and overspeed bolts prone to speed oscillation and trip failures.
Naval Defense
Feed pump drive turbines requiring ultra-high reliability under severe mission demands.
Nuclear Power
1970s hydraulic feed pump turbine controls suffering chronic seizing and load reduction trips.
Fossil Power
Legacy mechanical/hydraulic controls causing high maintenance and unrepeatable trip points.
As officially listed on Lovejoy Controls Corporation's website: ACC is the dedicated representative for Lovejoy technologies across the Middle East. Headquartered on King Abdulaziz Road, Dammam, KSA.