AAdvanced bolting technologies for mission-critical naval systems

Reboilers (CVN-68, CVN-77)

Challenge:Galling of nuts and studs results in frequent rework post-installation.


Solution: Superbolt® EzFit coupling bolts eliminate galling and seizing at removal for disassembly that can occur with fitted bolt bodies, saving time maintaining alignment.

Main Engine Guarding Valve (CVN-69)

Challenge:Dynamic engine loads and vibration can cause bolt loosening, risking valve misalignment or failure.


Solution: Superbolt tensioners provide high clamping force with vibration resistance, ensuring valve integrity even under fluctuating loads. Their modular design allows for in-situ re-tensioning without disassembly.

Steam Strainer Guarding Valves

Challenge: Steam systems experience thermal cycling and require frequent inspection access.



Solution: Boltight® hydraulic tensioners enable fast, uniform bolt tightening and loosening, reducing downtime during valve maintenance. Preload accuracy also protects gaskets from over-compression or uneven loading.

Steam Throttle Valve (Astern, CVN-69)

Challenge:Reverse thrust operations demand leak-free, high-integrity bolting under pressure.


Solution: Superbolt tensioners maintain consistent preload across the valve body, preventing steam leakage and ensuring reliable actuation during astern maneuvers.

 

Chive Cylinder Dampers – Arresting Gear (CVN-75 and Higher)

Challenge: Arresting gear systems absorb extreme impact loads from aircraft landings, stressing bolted joints.


Solution: Superbolt tensioners distribute load evenly across mounting bolts, maintaining structural integrity and reducing inspection frequency. Their resistance to loosening under shock loads enhances safety and reliability.

 

Feed Pumps (CVN-77, CVN-78)

Challenge:High-vibration environments can cause bolt loosening and misalignment in pump systems.


Solution: Superbolt tensioners provide secure, high-preload fastening that resists loosening and maintains alignment. Their ease of installation supports rapid pump replacement or overhaul.

Reactor Feed and Circulating Pumps (CVN-78)

Challenge: Nuclear propulsion systems require corrosion-resistant, high-strength bolting with zero tolerance for failure.


Solution: Superbolt tensioners made from corrosion-resistant alloys ensure long-term preload retention in harsh environments. Their precision tensioning supports nuclear safety protocols and reduces radiation exposure during maintenance.

Engine and Plant Rooms

Challenge: Engines and plant rooms are exposed to continuous vibration that can cause bolted joints to loosen over time, increasing the risk of equipment failure.

 

Solution: Nord-Lock® wedge-lock washers secure critical bolted connections, reducing the risk of loose bolts and ensuring reliable operation when it matters most.

Chive Cylinder Dampers – Arresting Gear (CVN-75 and Higher)

Challenge: Arresting gear systems absorb extreme impact loads from aircraft landings, stressing bolted joints.
Solution: Superbolt tensioners distribute load evenly across mounting bolts, maintaining structural integrity and reducing inspection frequency. Their resistance to loosening under shock loads enhances safety and reliability.

Feed Pumps (CVN-77, CVN-78)

Challenge: High-vibration environments can cause bolt loosening and misalignment in pump systems.


Solution: Superbolt tensioners provide secure, high-preload fastening that resists loosening and maintains alignment. Their ease of installation supports rapid pump replacement or overhaul.

Reactor Feed and Circulating Pumps (CVN-78)

Challenge: Nuclear propulsion systems require corrosion-resistant, high-strength bolting with zero tolerance for failure.


Solution: Superbolt tensioners made from corrosion-resistant alloys ensure long-term preload retention in harsh environments. Their precision tensioning supports nuclear safety protocols and reduces radiation exposure during maintenance.

Engine and Plant Rooms

Challenge: Engines and plant rooms are exposed to continuous vibration that can cause bolted joints to loosen over time, increasing the risk of equipment failure.

 

Solution: Nord-Lock® wedge-lock washers secure critical bolted connections, reducing the risk of loose bolts and ensuring reliable operation when it matters most.

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