Bolt Tightening SolutionsTorque and Tension, we’ve got got it covered.

www.tentec.net

Bolt Tightening Solutions

Tentec are an innovative producer of bolt tightening equipment with a high level of focus on

quality and safety. The company have Lloyds quality approvals to ISO 9001. ISO 14001 & BS

OHSHS 18001.

Our Bolt Tensioning products are designed to suit diverse

applications in varied working environments throughout the

industrialised world. We incorporate many unique features

into our produc ts to ensure that they are simple, reliable

and safe.

No matter what your preference for bolt tightening, Tentec

have it covered. We offer world class standard ranges of

hydraulic bolt tensioning tools, hydraulic nuts and innova-

tive ranges of direct drive, square drive hydraulic torque

wrenches.

Tentec serve tensioning solutions to most industrial sec-

tors. Along with our general purpose tensioners and torque

wrenches we also offer many industry specific bolt tighten-

ing tools and solutions.

Tentec are one of the few companies in the world to offer specially designed bolt tensioning tools

for instances where standard tensioners are just not suitable. Contact Tentec and we will design a

special tensioner solution normally within days of your enquiry and provide a fully detailed proposal

drawing and quotation.

BTS - Bolt Tightening Software

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Wind Turbine Bolt Tightening.Fully aware of the difficulties associated with wind tur-

bine blade tensioning, the Tentec Aero WT is a purpose

designed range of hydraulic bolt tensioning tools to suit

most wind turbine bolting applications. The WTB Ten-

sioning tools have the capacity to achieve the speci-

fied proof load requirements as detailed in EN ISO

898-1:1999 and ASTM A490M for grade 10.9 Bolts.

These feature packed tensioners have been designed

with rapid tensioning in mind and offer a safe, reliable

and consistent method to simultaneously tension many

wind turbine bolts.

• Blade to Bearing• Rear Main Bearing• Nacelle Frame• Front Main Bearing

• Nacelle/Yaw Bearing• Tower Bolting• Main Shaft to Hub• Foundation Bolting

A selection of Tentec Aero WT tools including Aero WTB & Aero WTF bolt tensioners

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Subsea Bolt Tightening

Tentec subsea bolt tensioning tools have been used in the UK North sea by most of the large bolting contractors since

1991 and have a proven reliability and safety record. The COMPACT-8 range of subsea bolt tensioning tools brings a

new generation of bolting solutions.

Comprising just 8 bolt tensioning tools, the COMPACT-8 series is capable of tensioning most standard flanges including

most of the newer Vector SPO* Compact flanges. The COMPACT-8 series is made from high strength stainless steel

which greatly reduces maintenance work to a minimum

after subsea use. The Compact-8 range of subsea bolt

tensioning tools can be supplied with quick acting Split

Reaction Nuts. Simply mount the tensioning tool over the

bolt, slide the open reaction nut over the bolt and snap the

reaction nut halves together for rapid and reliable assem-

bly. The rapid speed of fit ensures the most efficient use

of expensive diver time. The use of Tentec’s Bolt Load

Software package along side the COMPACT-8 range

of subsea bolt tensioning tools completely removes the

complexity of calculating what pressure to operate the

tensioning tools. A complete bolt tensioning project can

be defined and rapid joint specific technical datasheets

can be produced.

Compact-8 Subsea Tensioners - Bolt sizes 3/4” to 3.3/4”

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Tentec are one of the few tensioning companies in the world who offer custom tensioner tool solutions. If the standard ranges of tensioners are not suitable, contact Tentec and we will design a custom tool to do the job. Tentec use the latest 3D modeling software (Solidworks) and FEA analysis software (Solidworks Simulation) to design non standard tools. Once the custom solution has been designed we offer either 2D drawings of the pro-posed tool or if requested we can supply 3D step files which allows our customers to import the custom tool into their 3D assembly to check fit.

Tentec recognised from the start that having the ability to rapidly design custom tensioner solutions was an im-portant and necessary function of the company and Tentec have invested heavily in its engineering department. We aim to provide special tensioner solutions within one week of receiving the enquiry. Special tensioner tools currently make up approximately 50% of the complete business.

Custom Tensioner Design

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Oil RefineryHigh Pressure Heat Exchanges Pressure vessel covers Reactor covers Ammonia converters Urea Strippers High Pressure Pipe flanges Compressor casings

Offshore EngineeringFlange connections Riser Clamps Sand Separators Slug Catchers Crane Bearings Single Point MooringsVector SPO Compact flanges.Clamps

Nuclear Power Steam Generator Manway Covers Boiler Feed Pumps Fuel Handling Systems Steam Valves Steam Turbine Casings

Wind TurbineFoundation BoltingTower BoltingNacelle Frame boltsBlade to Bearing boltsMain Shaft to Hub bolts.

OEM’sHigh Exchange Covers and Nozzles Pressure vessel covers Boiler feed pump covers Compressor casings Diesel engine & CompressorConnecting rods Power Presses Material Testing Machines Water Turbine casings Hydraulic power units

A World of Bolting Applications.

MST Multi-Stud Tensioning System

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Subsea Tensioners

Topside Tensioners

Wind turbine bolt tensioners

Special Design Project CapabilityExample

ROV Installable Clamps End User: NDAProject Lead: NDAInstallation: NDA

Christmas Tree – Sensor FlangeSmall socket head cap screws held a sensor to a flange.Investigation showed cap screws needed strengthening.

To recover problem small flanges to surface and replace cap screws was costed at £10m plus lost production costs

SolutionTentec where contacted to design and manufacture special submersible ROV installable clamps. The clamps relieved the small socket head cap screws of load and provided an alternative method of loading. Two special devices where designed and manufactured for both 60m and 400m subsea deployment. The 60m tool was used by a team of divers. The 400m device was controlled and manipulated by an ROV. The project was successfully completed.

Video stills of equipment in use.

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The following is a typical case study illustrating our Engineering and Manufacturing ability in offering special bolt tightening solutions..

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Tentec TrainingTentec are a specialist provider of training and competence assurance pro-

grammes in the assembly and tightening of bolted connections to industries

as diverse as oil & gas (onshore and offshore), power generation, construc-

tion, defence and renewable energy.

Tentec delivers training in controlled bolting in accordance with “Mechanical Joint Integrity Standards” docu-

ment published by the Engineering Construction Industry Training Board (ECITB). The training standards avail-

able are MJI10 hand torque, MJI18 hydraulic tensioning and MJI19 hydraulic torque wrenches. Additional

Tentec derived courses include TE12 Hydraulic Nuts and

TE13 BTS-Bolt Tightening Software.

These standards are recognised by industry and rec-

ommended as the benchmark qualification for bolting

personnel by The Energy Institute and other influential

authorities.

Tentec offer a mobile training service as well as our own

comprehensive certified training school within the Tentec

facility. This gives our clients the option of either using

Tentec equipment in our training school or onsite at our

client’s facility giving the trainee’s the benefit of learning

on the actual equipment they will be using on the job.

Training location to suit you

Employer’s can selectively choose training content from a selection of disciplines:-

MJI10 Hand Torque Bolted ConnectionsMJI18 Hydraulic Tensioned Bolted ConnectionsMJI19 Hydraulic Torqued Bolted ConnectionsTE12 Hydraulic Nuts*TE13 BTS-Bolt Tightening Software*

A preferred Learner/Trainer ratio of 4:1 is available.*Optional Tentec derived training courses.

• EICTB defined training course “Mechanical Joint Integrity Standards”

• Training is given by fully certified ECITB licensed trainers

• Successful candidates are issued the globally recognised ECITB Cetifi-cate of Technical Competance. “Management of Joint Integrity”

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Consistent: Using multiple bolt tensioning tools on a bolted joint gives a much improved uniform bolt load across all bolts.Axial Bolt Load: Bolt load is applied axially to the bolt. Inconsistencies such as friction, bending and lubri-cant are not a factor when using bolt tensioners. No torsional stresses are involved.Rapid: Multiple bolt tensioners offer a rapid and accurate method of tightening a bolted joint.Adaptable: Conversion kits are available to convert a tensioner from one bolt size to another, offering an eco-nomical and versatile solution.Accurate: Bolt load is directly proportional to the pressure applied to the tensioner.Standard Fasteners: Tensioners are mostly used with standard fasteners, no special or proprietary bolting components are required.Simplified Calculations: Using the Tentec BTS-Bolt Tightening Software takes away the complexity of calcu-lating tensioner pressures and torque values.

How Detachable Bolt Tensioners Work..

The stud and nut are assembled onto the bolted joint. The two halves of the joint are pulled together.

The nut rotating socket is assembled over the hexagon nut.

The tensioner is assembled over the hexagon nut.

The thread insert (puller) is screwed onto the bolt protrusion.

The tensioner is connected to an hydraulic pump unit through high pressure flexible hose.

While the tool pressure is held. The hexagon nut is rotated down to the joint face and locked down tightly.

The ten-sioner is pressurised to the pre calculated value. Bolt load is directly proportional to hydraulic pressure. The bolt stretches and a gap is formed below the hexagon nut. Once the target pressure is reached, the pressure is held.

The pressure is released, the bolt is tensioned.

The tensioner can be removed.

www.tentec.net

© 2014 Tentec Limited - All rights reserved.

Tentec LimitedPlymouth House. Guns Lane

West Bromwich. West MidlandsUnited Kingdom. B70 9HS

Internet: www.tentec.netemail: sales@tentec.net

Telephone: +44(0)121 524 1990Telefax: +44(0)121 525 1999

ISO 9001ISO 18001ISO 14001

Document No: TDR112R5

Tentec products are subject to continual development and we reserve the right to make changes in the specification and design of products without prior notice.

Global Distributor CoverageTentec have over 50 highly experienced distributors situated all over the world. Many distributors offer local bolt tightening advice and bolting services. Refer to the Tentec website for a distributor near you.

BTS Bolt Tightening Software Takes the Complexity out of Bolt Tensioning Calculation.Visit...www.tentec.net/bolt-tightening-software.phpTo register for your free copy of the BTS software.