FCC Services

Maintenance & overhaul of FCC valves and actuators

At Delta Controls, we understand that FCC valves operate under the most extreme conditions. Whether exposed to very high temperatures, erosive catalyst flows or critical switching sequences, a single failing valve can immediately result in costly downtime or compromised process safety.

That is why we provide specialized maintenance and overhaul services for all types of valves and actuators used in FCC units. From slide valves and plug valves to butterfly valves and complete electro-hydraulic actuator systems — we restore your equipment to as-new performance or better.

Delta Controls is your reliable partner for inspection, analysis, reporting and continuous improvement of FCC valves and actuators. Our specialists assess the condition of your equipment both on-site and in our workshops, translating their findings into clear technical reports and targeted improvement recommendations.

Whether it concerns modifications to an existing FCC unit, performance optimization of critical valves or extending the service life of aging equipment, Delta Controls delivers practical and proven solutions. With our deep knowledge of FCC processes, materials engineering and actuation technology, we help reduce wear, increase reliability and extend maintenance intervals. This enables refineries worldwide to minimize downtime, improve process safety and reduce total life cycle costs of their FCC units.

Our FCC maintenance services

Total life cycle care for FCC valves and actuators

1. overhaul & refurbishment

• Complete disassembly, inspection, cleaning and failure analysis
• Machining of valve bodies, seats and internal components
• Surface treatments including cladding and refactory (e.g. Stellite, Inconel)
• Replacement of seals, bearings and bolting
• Pressure testing, functional testing, documentation and feedback (as required by scope)

2. modifications & life extension

• Redesign and optimization of purge systems
• Material upgrades and optimization of wear parts
• Retrofit of older valve designs to modern standards
• Refactory
• Redesign based on damage analysis and process improvements

3. field services during turnarounds and outages

• 24/7 deployable service teams for turnaround support
• On-site troubleshooting, inspection and repair
• Short lead times through direct coordination with our workshop
• Full work preparation prior to shutdowns

4. actuator maintenance (hydraulic / pneumatic / electric)

• Overhaul of actuators and control systems
• Calibration, adjustment and functional testing
• Complete refurbishment of plug & play actuator units
• Replacement or upgrade of obsolete or unsupported systems

Experience with all brands – including legacy equipment

Delta Controls is fully brand independent and has extensive experience with both current and older, legacy FCC equipment, including:

Valve brands

• Z&J / IMI Z&J
• IMI Remosa
• TapcoEnpro
• Chapman
• BLAC
• Houston Systems
• Kubota

Actuators & positioners

• Rotork, Bettis, EIM, Biffi, Auma
• MEA, BLAC actuators
• GPE and Hays Republic positioners

Our strength lies in keeping aging FCC equipment operational, reliable and compliant, even when original manufacturers no longer provide support. This expertise allows us to respond quickly and effectively during critical maintenance windows.

Why FCC maintenance by Delta Controls?

Nearly 50 years of experience in FCC systems worldwide
In-house workshop for machining, cladding, testing and documentation
Brand-independent approach enabling objective advice and retrofit solutions
One-stop service: valve, actuator, controls and field support
Safety and quality assured through ISO 9001:2015 and SCC** certified technicians