HSR Bolt Tensioner Spring Return Bolt Tensioner

• Unique quick release bridge adaptation

• Piston overstroke prevention

• Piston stroke indication

• Piston / cylinder misalignment compensation

• Bolt coverage from 1″ to3 1/2″ with just 4 tools

• Designed to fit BS1560 / ANSIB16.5 / API flanges

• Fully enclosed load cell design eliminates entry of debris into piston retraction mechanism