SPRING RETURN HYDRAULIC TENSIONERS

The SRT Spring Return Hydraulic Stud Tensioners are the fastest, most efficient stud tensioners on the market. Each one pairs a spring return load cell with the hydraulic assembly, so the ram retracts quickly between cycles. They are also lighter than comparable tools and come with a range of safety and fail-safe features — including a safety relief valve that prevents over-stroking the ram and the seal replacement that would otherwise follow.

SRT SPRING RETURN BOLT TENSIONER

The Spring Return design dramatically increases productivity and safety on the job site when compared to older technology manual return tensioners.

• Piston overstroke prevention

• Piston stroke indication

• Compatible with MRT Tensioner range

• Unique quick release bridge adaptation

• Piston/cylinder misalignment compensation

• Bolt coverage from 3/4" to 4" (20 - 115 mm) with just 8 tools

• Designed to fit BS1560/ANSI B16.5/API flanges

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

• Piston over-stroke eliminator to prevent overstroking and blowing a seal

• Twin hydraulic couplings for multiple tool connections

• Requires stud to protrude above nut by 1 x bolt diameter

• Application specific tooling available. Contact factory for details.

• 10 mm piston stroke Max tool pressure: 1,500 bar (21,750 psi)Bolt protrusion above nut: 1 x bolt diameter(minimum)