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Norbar In The Oil & Gas Industry

Oil & Gas

The increasing demands of the subsea industry and Remote Operated Vehicle (ROV) manufacturers and operators means that, alongside our established reputation as highly skilled providers of equipment for use in refineries, pipelines and oil and gas installations, it is only natural that Norbar are pioneers in the field of weight reduction in high torque gearboxes; integration of torque measurement into gearboxes with the minimum impact on weight; and size and modification of gearboxes and torque transducers for harsh environment and subsea use.

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Use Our Calculators

Norbar has devised easy-to-use online calculators that support the correct application of torque in three key areas:

  1. Unit conversion to assist international measurement definitions.
  2. Torque extension for setting correct values
  3. Torque tension to identify precise levels of torque to be applied for individual applications.

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Top Side Torque Tools and Instruments

Top Side Torque Tools and InstrumentsNorbar has developed a wide range of solutions for torque application and torque testing. Where there is not a standard solution from our range, our Engineer to Order service designs and manufactures bespoke solutions.

Tool Testing

Norbar provides the biggest selection of measurement solutions for torque tools available, from the smallest screwdriver to the largest hydraulic or pneumatic wrench. For harsh environments, such as deck-mounted applications, Norbar has developed a range of measurement and calibration equipment that is rated to IP65/IP67.

Valve Testing

The ability of Norbar’s PneuTorque® range of pneumatic torque multipliers to give smooth, controllable torque up to 300,000 N•m has made them invaluable in the pressure testing of valves, even up to the largest sizes. The tools are usually combined with torque transducers and often with angle measurement so that a relationship can be plotted between the exact position of the valve stem and the actuation torque.

USM - Ultrasonic Bolt Measurement

In joints that are highly critical due to safety or the implications of down time, a more direct means of establishing bolt tension than torque control is needed.  One of the most versatile methods of establishing tension is to measure the extension of the bolt due to the tightening process using ultrasound.  Norbar’s USM-3 has been both laboratory and field proven to be the most accurate, reliable and cost effective solution to bolting failures which could place workers at risk, lead to the loss of production and/or cause damage to capital equipment.

PneuTorque® Pneumatic Torque Wrenches

PneuTorque® Pneumatic Torque Wrenches and Hydraulic WrenchesPneuTorque® wrenches are available in a range of models from 500 N•m (maximum torque) to 300,000 N•m. They all provide smooth, continuous and controllable torque with low noise and exceptionally low vibration levels. The Norbar PneuTorque® is faster than comparable hydraulic ratcheting tools. These attributes make PneuTorque® wrenches suitable for a huge range of applications in the oil and gas industry, from flange bolting to machinery barring (turbines and engines) and torque testing.

Norbar Hydraulic Wrenches

Norbar Hydraulic WrenchesNorbar offers both Square Drive Series “NSD” and Hex Link Series “NHCL” hydraulic wrenches, specifically designed for extremely low height access applications.  Our robust and lightweight aluminium body completely encloses the drive train keeping the crucial lubricant inside the tool while significantly reducing the opportunity for contamination from the outside elements.  The model range extends to 81,360 N•m in the Square Drive Series and 67,800 N•m in the Hex Link Series.

Subsea Tools and Instruments

Subsea Tools and InstrumentsValve Intervention Tools

Norbar’s gearboxes have become the industry standard for API Class wet valve intervention tools. However, increasing demands of the subsea industry for smaller and lighter tools is driving forward development of the gearbox. Using lightweight materials, whilst maintaining durability, has been a key development area. Another is the integration of a torque transducer – traditionally a separate, bolt on item – giving a significant reduction in size and weight of the overall package.

Having gained great experience manufacturing gearboxes for intervention tools, Norbar have applied this learning to the manufacture of complete API intervention tools. The API Class 4 to 7 Adapter Gearbox is a good example of how Norbar has listened to the needs of the industry and applied them to make an innovative tool. Most API intervention tools in the world use Norbar multipliers.

Pipe Clamp Tools

Tools used for subsea pipe clamping are often required to deliver significantly higher torques than valve intervention tools. On a tool with a required torque output of 60,000 N•m, for example, the weight of a standard steel bodied tool becomes unacceptable. The need for pipe clamping tools used on the Langeled pipeline from the Ormen Lange gas field in Norway to have a maximum submerged weight of 60 kg led Norbar to develop a gearbox that made extensive use of lightweight alloys. The techniques learned from this has given Norbar new technology that they are able to apply to other specialist projects and improved standard products.

Special Engineer to Order Product Service

The diverse needs of the oil and gas industry, both on land and at sea, mean that Norbar’s standard product may not be ideally suited. Norbar therefore offer an Engineer to Order service that spans a range from modified reaction plates and non-standard gearbox input and output drives to completely one off tools or measurement systems.


 Q-various  Torque reactions for use on Speedloc II Clamps
 Q4881  Torque & angle valve testing kit with pneumatic drives
 Q4835 / 4835.01/2  Torque & angle valve testing kit with AC servo drives
 Q4557  Double sided flat reaction for Class 4 receptacle / ET2-92-4000
 Q3730  Custom Class 7 multiplier kit with hydraulic latching
 Q3559  HT9/25 with special reaction & drive socket
 Q3492  Class 5 & 7 pipe clamp actuation & testing kits
 Q3486  Portable 25.000 lbf.ft hydraulic tool calibration kit
 Q3379  Gas cylinder valve torque verification
 Q3310  Class 4-6 & 4-7 Subsea torque multiplier kit
 Q3306/7  Class 4 to 9,500 N.m Subsea torque multiplier for pipe clamps
 Q3285  HT - 119 5:1 less AWUR
 Q3244  PT12 MTS with type 72A Interface
 Q3216  Extended Torque Reactions for PTM - 52
 Q3084  Class 6 & 7 Multiplier kits for customer integration into subsea tool
 Q2967 + Q3106
 Class 4 to 6,000 N.m right angle torque multiplier
 Q2693  Class 4 Reaction Nose with Indicator
 PT9 MTS Fitted with API Class 5 Nose Extension
 Q2605  HT9/25 Special with 4:1 Output Gear Train Kit
 Q2576  100,000 N·m Torque and Angle Valve Testing Kit
 Q2541  Special HT9/25 & No. 9 Annular Transducer Assembly
 Q2375  PT13 MTS fitted with API Class 7 Short Nose Extension
 Q2281  Offset Gearbox for Dredging Pipe Flange Bolt Tightening
 Q2277/9  20,000 & 50,000 N·m Harsh Environment Annular Transducers
 Q2269  Saw Machine Cutter Torque Tightening
 Q2108  Actuator Testing Controller & Transducer Kit
 Q1952  HandTorque 3.5:1 Subsea Special
 Q1949  HandTorque HT11/5 Special
 Q1937  HandTorque 15:1 Subsea Special
 Q1910  Special Double Sided Reaction for PT2
 Q1909  HT12 with 14.1:1 Velocity Ratio
 Q1722  Valve Testing Kit - API Class 3 & 4
 Q1705  Long Reach Nose Extension & Reaction

NORBAR TORQUE TOOLS LTD. Wildmere Road, Banbury, Oxfordshire, OX16 3JU, United Kingdom
Registered Office as above - Registered in England No. 380480 - VAT No. GB 119 1060 05