HYDRAULIC BOLTING

BY RIVERHAWK

HYDRAULIC BOLTING

Riverhawk Hydraulic Bolting Systems are designed to help you fasten various types of joints with accuracy, speed and safety. Whether you need to tighten turbine casings, pressure vessels, pipelines, piston engines or any other application that requires uniform and repeatable load, Riverhawk Hydraulic Bolting can deliver the optimal results.

Unlike other methods of bolting, Riverhawk Hydraulic Bolting allows you to tension multiple bolts simultaneously using a "daisy chain" configuration. This reduces the risk of uneven loading, leakage, fatigue and failure. It also saves you time and money, bringing down the life cycle costs by minimizing the maintenance and assembly factors.

Riverhawk Hydraulic Bolting Systems are suitable for a wide range of bolting applications, such as Reciprocating Compressor Connecting Rods, Compressor Drive Rods, Compressor Piston Heads, Turbine Casings, Compressor Casings, High Pressure Valves, Anchor Bolts, Tie Rods and more. You can choose from our standard products or request a custom engineered solution to meet your specific needs.

If you want to learn more about how Riverhawk Hydraulic Bolting Systems can benefit your bolting projects, please contact us today.

Riverhawk Hydraulic Safety Interlock Guard Tensioner

HSIG

Are you looking for a fast and safe way to join your GE Frame 6, 7 or 9 Gas Turbine flanges?

You can rely on a standardized solution that GE has approved and recommended for this purpose - the Hydraulic Safety Interlock Guard Tensioner. The HSIG has been successfully used for many years and is compatible with GE Gas Turbine flanges. To find out more details and the relevant GE material numbers, click on "learn more".

HSIG

Are you looking for the legacy HT Tensioning System by Riverhawk? Go to the HT section

HT System

Are you looking for special tooling that is used with the Riverhawk tensioning systems? Visit the Special Tools section

Hydraulic Fastener

HYDRAULIC TENSIONERS

Riverhawk HET Hydraulic External Tensioner

Peregrine & Hydraulic External Tensioner (HET)

Normal assembly space situation

Peregrine & HET

Assembly space:

Thread protrusion (A) - sufficient

Radial distance (B & E) - sufficient

Height distance (C) - sufficient

Riverhawk HTB Hydaulic Tensioned Bolt Hydraulikschraube

Hydraulic Bolt (HTB) & Hydraulic Nut (HTN)

Compact radial footprint and height distance

HTN & HTB

Assembly space:

Thread protrusion (A) - sufficient

Radial distance (B & E) - constrained

Height distance (C) - constrained

Externally Tensioned Nut (ETN)

Most compact in height distance and required stud length

ETN

Assembly space:

Thread protrusion (A) - constrained

Radial distance (B & E) - sufficient

Height distance (C) - sufficient

Hydraulic Rod Tensioner (HRT)

Most compact in radial footprint and required stud length

HRT

Assembly space:

Thread protrusion (A) - constrained

Radial distance (B & E) - constrained

Height distance (C) - sufficient

Riverhawk Hydraulic Tensioners are designed to provide safety and performance in various applications. They are lightweight and have a small diameter, which makes them easy to handle and install. A spring return piston that automatically retracts after each use, saves you time and effort.

The overstroke protection, which prevents the piston from extending beyond its limit, protects the seals from damage and reduces the risk of leakage. Riverhawk Hydraulic Tensioners can cover stud diameters from bolt size M30 to M90, and custom sizes are also available upon request. Riverhawk offers three standard designs of Hydraulic Tensioner Systems: