The Single Deck High Temperature Hydraulic Nut (HTHN) is capable of tensioning all of the studs on any valve, flange or cover simultaneously, loading 100% of the fasteners.

This provides for complete elimination of distortion and ensures a perfect seal in a single operation.

Advantages:

• Substantial time savings
• High accuracy >1% scatter
• No stud or flange damage (galling, seizure)
• Ideal for exceeding ALARA expectations
• System is absent of oil
• Simple and accurate calibration
• Manpower reduction
• High temperature capability
• No need for a hardware change - system works with existing studs
• Supplied to a variety of QA levels including ASME Section III

Ideal for nuclear, aerospace and petrochemical applications:

• Safety Relief Valves
• Power Operated Relief Valves
• Main Steam Isolation Valves
• Control Valves
• Feed Water Pumps
• Stop Valves
• Reactor Coolant Pumps
• Pressure Vessels
• Excess Let Down Heat Exchangers
• Steam Turbine HP and LP Covers
• Gas Turbines