Power Examples:
Boiler Circ. Water Pump
Boiler Feed Pump
Feedwater Heater
High-pressure Feedwater Heater
Turbine Stop Valve
Steam Turbine Inlet Flange
Split-Case Turbine
Steam Turbine
Turbine/Generator Coupling

Press Examples:
Beckwood Press - Tie Rods
Injection Molding Press
3,250 Ton Forging Press
5,000 Ton Forging Press
Extrusion Press
Extruding Press
Particle Board Press
Stamping Press
Hepburn Bale Press
Press Anchorbolts
700 Ton Molding Machine

Compressor Examples:
Connecting Rods
Flexible Disc Coupling
Reciprocating Compressor Jamnut
Piston End Nut
Anchorbolts & Load Cells
Distance Piece

Hydro Examples:
Kaplan Blade Bolts
Kaplan Turbine, Bearing Housing
Pelton Turbine Nozzles
Turbine Wheel To Shaft
Kaplan Turbine Coupling

Mining Examples:
P&H Power Shovels
Gyratory Crusher
Marion 8750 Dragline
Hoist and Drag Drum
Split Gear
Power Shovel applications

Petrochemical Examples:
Reactor Cover
Heat Exchanger
Ammonia Reactor
Dehydration Towers

Steel Mill Examples:
Thrust Collars: Rolling Mills
Thrust Collars
Mill Motor Nuts
Side Trimmer Nuts
Electrode Arm Assembly

Various:
Bolted Segments
Flexible Disc Coupling

Steam Turbine Inlet Flange

Problem: The main problem with this application was time for installation and removal. Each installation required about 24 man-hours utilizing heating rods and a 1-1/2" impact. Removal required about 24-40 man-hours.

Two workers at 180º apart tighten the flange in a star pattern. Impacts are used to tighten close to the target torque.

Superbolt Solution: The application shown utilized (12) 2-3/4" Torquenuts® with Flexnuts®. Installation of the studs, tensioners, and Flexnuts required only 3 man-hours. Only two workers were required for the job. Total tightening time after the Flexnuts and tensioners were seated was about 35 minutes. Eight jackbolts were tightened to 156 ft-lbs for a prestress of 45,000 psi.

Hand torque wrenches are used for the final pass. Tightening completed in 35 minutes!