EXTERNAL STUD TENSIONER

Hydraulic External Tensioner (HET)

The Riverhawk Company offers a full range of standard and custom stud tensioners. Stud tensioning is fast becoming the preferred method of tightening bolted connections. Stud tensioning eliminates the inaccuracies associated with torquing, such as surface finish, coatings, lubricants, coefficient of friction, etc. Riverhawk tensioners offer flexibility and versatility with modular designs that incorporate a wide range of stud sizes with a minimum number of parts. With Riverhawk tensioners the stud can be accurately tensioned to the required load. Any number of Riverhawk tensioners can be linked together to simultaneous.
Riverhawk Company specializes in hydraulic stud/bolt tensioning products and services, which enable the fasteners in a mechanical joint to be loaded in a controlled safe manner. I conjunction with our customers' needs, we have developed a full line of hydraulic stud and bolt tensioners for a wide variety of applications and specific geometries. Using modern computer aided design techniques, including finite element stress analysis. All fittings are supplied to match your installation equipment and the assembled tensioners are pressure tested to ensure against leaks at installation.
The Riverhawk Company, an engineering driven manufacturer, specializes in hydraulic shaft and flange joining technologies. We meet the daily challenges of the rotating equipment industry by offering auxiliary equipment such as air driven and manual hydraulic pressure kits and pusher piston cylinders for the installation of coupling hubs, thrust discs, and compressor wheels. Riverhawk also designs and manufactures hydraulically tensioned studs and nuts, tensioning tools, hydraulic nuts, and ring and plug gages. We also provide source inspections and training seminars. Our equipment is proudly supplied to the top OEMs and end users of the turbomachinery industry. Riverhawk is a member of the American Petroleum Institute (API) and sits on the coupling committee of the American Gear Manufacturers Association (AGMA).