Hahn & Clay
Vessel Closures
The Global Standard For Safe, Fast, and Reliable Coker Drum Closure
Vessel Closures
Hahn & Clay’s F.A.C.T., T.A.C.T., and F.C.C.T. vessel closure systems bring modern efficiency and safety to hazardous‑environment operations. Since their development in 1987 and first installation in 1990, these systems have helped facilities eliminate strenuous manual tasks, reduce operator exposure, and dramatically shorten closure open/close times.
Engineered for Performance
Our remote‑operated systems streamline every step of the closure process, delivering:
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Faster, more consistent operation
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Reduced physical strain on personnel
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Improved uptime and operational efficiency
All actions can be performed from a secure control center.
Superior Sealing Technology
Hahn & Clay’s patented innovations set a new standard for closure integrity:
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Simultaneous bolt tensioning ensures uniform gasket loading
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Patented ramp ring design mechanically locks the seal for exceptional reliability
This combination delivers a tighter, more dependable seal under real‑world operating conditions.
Safety at the Core
With remotely removable bolting and full off‑unit control, operators avoid direct exposure to leaks, high‑pressure systems, and process hazards. The result is a safer workplace and a more efficient plant.
Built for Long‑Term Value
Beyond immediate safety and speed gains, these systems provide lasting operational advantages. Facilities benefit from reduced maintenance demands, fewer unplanned shutdowns, and a closure solution engineered to perform reliably over decades of service. It’s a long‑term investment that pays off in productivity, safety, and peace of mind.
Force Actuated Closure Technology
Hahn & Clay’s F.A.C.T. System® is a proven automated closure solution trusted on coking drums worldwide. Engineered for safety, speed, and reliability, it streamlines operations while protecting your workforce.
Key Benefits: Reduced Leakage
Advanced closure seal technology improves reliability and minimizes emissions.
Faster Drum Turnaround
Cuts opening and closing time by up to 80%, boosting overall unit productivity.
Single‑Operator Efficiency
Designed for one‑person operation, reducing manpower requirements.
Remote, Safer Operation
Operators stay clear of hazardous zones with fully remote closure capability.
Hahn & Clay’s Automatic Chute Cover features a remote‑operated hydraulic davit arm that boosts safety and efficiency. Remote control removes personnel from hazards, while stainless tubing, fittings, and braided hoses ensure durability. Heavy‑duty needle bearings and counterbalance valves deliver smooth reliable performance everyday.
Hahn & Clay’s Hydraulic Power Unit delivers reliable hydraulic performance with dual filtration, stainless tubing and braided hoses, quick‑connect filling, a backup pump, and level and temperature monitoring. Easy access, moisture control, and optional heaters ensure dependable operation in any climate worldwide for operators daily.
Hahn & Clay’s Nitrogen Booster Skid delivers automatic, air‑pilot‑controlled operation with stainless tubing, fittings, valves, and braided hoses for durability. Relief protection prevents over‑pressuring, while backup pump, spare bottles, bypass valves, and isolation valves ensure reliable nitrogen performance.
Hahn & Clay’s Hydraulic Control Console enhances safe system operation with a Dead Man Switch, stainless frame, and hard S.S. tubing. Locking access doors and folding gauge covers protect controls, while Plexiglas windows and filter, low oil, and high temp indicators ensure clear, reliable monitoring across operations.
Nitrogen Booster Skid pressure drives the force actuator to 1400 psi, generating over 1,390,000 lb of force to uniformly load the gasket against the drum flange. This power also tensions the retaining bolts as the force ring moves away from the cover. Once the ramp ring engages, pressure is released for a secure, reliable final seal.
Top Automated Coking Technology
The T.A.C.T. System® delivers faster, safer, and more efficient coking drum closure operations. Built for reliability and operator protection, it streamlines the decoking cycle while reducing labor demands.
Key Benefits
Improved Seal Performance
Enhanced closure seal reduces leakage and improves system reliability.
Up to 80% Faster Cycle Times
Significantly shortens opening and closing steps for quicker drum turnaround.
Single‑Operator Operation
Reduces manpower needs without compromising safety or control.
Remote Operation for Safety
Keeps personnel away from hazardous areas throughout the closure process.
Hahn & Clay’s Automatic Chute Cover features a remote‑operated hydraulic davit arm that boosts safety and efficiency. Remote control removes personnel from hazards, while stainless tubing, fittings, and braided hoses ensure durability. Heavy‑duty needle bearings and counterbalance valves deliver smooth reliable performance everyday.
Hahn & Clay’s Hydraulic Power Unit delivers reliable hydraulic performance with dual filtration, stainless tubing and braided hoses, quick‑connect filling, a backup pump, and level and temperature monitoring. Easy access, moisture control, and optional heaters ensure dependable operation in any climate worldwide for operators daily.
Hahn & Clay’s Nitrogen Booster Skid delivers automatic, air‑pilot‑controlled operation with stainless tubing, fittings, valves, and braided hoses for durability. Relief protection prevents over‑pressuring, while backup pump, spare bottles, bypass valves, and isolation valves ensure reliable nitrogen performance.
Hahn & Clay’s Hydraulic Control Console enhances safe system operation with a Dead Man Switch, stainless frame, and hard S.S. tubing. Locking access doors and folding gauge covers protect controls, while Plexiglas windows and filter, low oil, and high temp indicators ensure clear, reliable monitoring across operations.
Nitrogen Booster Skid pressure drives the force actuator to 1400 psi, generating over 1,390,000 lb of force to uniformly load the gasket against the drum flange. This power also tensions the retaining bolts as the force ring moves away from the cover. Once the ramp ring engages, pressure is released for a secure, reliable final seal.
Fixed Chute Closure Technology
Hahn & Clay’s F.C.C.T. System® delivers a simplified, low‑maintenance closure solution for coking drums around the world. Designed for durability and ease of use, it offers reliable performance with fewer components and less upkeep.
Key Benefits
Fewer Moving Parts
A streamlined design reduces hydraulic components, improving reliability and minimizing potential failure points.
Lower Maintenance
With fewer wear items and simpler operation, the system reduces maintenance time and long‑term operating costs.
Patented Sealing System
Engineered for secure, consistent sealing with reduced leakage risk.
Easy Access
Open, accessible layout makes cleaning and inspection fast and hassle‑free.
Fixed Chute Design
Stable, robust chute design supports dependable operation.
Reduced Spillage
Tighter clearance at the flange breaking point helps minimize material loss and keeps the work area cleaner.
Hahn & Clay’s Automatic Chute Cover features a remote ‑operated hydraulic davit arm that boosts safety and efficiency. Remote control removes personnel from hazards, while stainless tubing, fittings, and braided hoses ensure durability. Heavy‑duty needle bearings and counterbalance valves deliver smooth reliable performance everyday.
Hahn & Clay’s Hydraulic Power Unit delivers reliable hydraulic performance with dual filtration, stainless tubing and braided hoses, quick‑connect filling, a backup pump, and level and temperature monitoring. Easy access, moisture control, and optional heaters ensure dependable operation in any climate worldwide for operators daily.
Hahn & Clay’s Nitrogen Booster Skid delivers automatic, air‑pilot‑controlled operation with stainless tubing, fittings, valves, and braided hoses for durability. Relief protection prevents over‑pressuring, while backup pump, spare bottles, bypass valves, and isolation valves ensure reliable nitrogen performance.
Hahn & Clay’s Hydraulic Control Console enhances safe system operation with a Dead Man Switch, stainless frame, and hard S.S. tubing. Locking access doors and folding gauge covers protect controls, while Plexiglas windows and filter, low oil, and high temp indicators ensure clear, reliable monitoring across operations.
Nitrogen Booster Skid pressure drives the force actuator to 1400 psi, generating over 1,390,000 lb of force to uniformly load the gasket against the drum flange. This power also tensions the retaining bolts as the force ring moves away from the cover. Once the ramp ring engages, pressure is released for a secure, reliable final seal.
Hahn & Clay’s patented finger‑pin closure system redefines what’s possible in high‑performance industrial connections. Designed with precision‑tapered fingers that interlock seamlessly with radial tapered pins, our closure technology delivers rapid, reliable assembly and disassembly for virtually any machinable application. The unique tapered geometry maximizes shear‑load distribution across the pins, allowing them to withstand extreme pressures with fewer—and smaller—components than traditional methods.
By aligning closure forces in a straight, weld‑like load path, the Hahn & Clay finger‑pin principle dramatically reduces the size and weight of the closure without sacrificing strength. This innovative design expands operational limits well beyond what conventional bolted closures can achieve, offering a lighter, stronger, and more efficient solution for demanding environments.
Enhance Safety. Boost Control. Maximize Efficiency.
Remote PLC Console
Operate your system with confidence from virtually anywhere. Our remote PLC console delivers flexible, real‑time control, allowing operators to manage system functions safely and efficiently from the most convenient location.Water Curtain
Protect your team and your equipment with a robust barrier against debris and fallout. The Water Curtain adds a critical layer of safety during operations, helping maintain a cleaner, safer working environment.Dual Acting Chutes
Engineered for precision and protection, our Dual Acting Chutes guide coke smoothly into the handling area while shielding operators throughout the cutting process. Designed for performance you can trust in the most demanding conditions.Hahn & Clay’s Water Curtain surrounds the F.A.C.T. System® to shield operators and equipment from debris and fallout, with reliable remote operation. Built with 3/4" plate, stainless tubing, fittings, and braided hoses, it features an external cylinder, flow dividers, and secure support latches for synchronized performance during operation.
Dual Acting Chutes provide smooth, balanced coke handling with safe remote operation and rugged 3/4" plate construction. Stainless steel tubing, fittings, and braided hoses ensure durability, while four cylinders, stability guides, and automatic latches deliver reliable performance.
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