Description
MM60 Series Bolt Tensioners are specially designed for subsea applications. These Tensioners are suitable for higher pressure rating flanges also. It’s ergonomic design makes it very easy to handle and use by divers under the harsh sea conditions. These tensioners are designed to provide a wide range of flexibility, covering stud sizes 3/4” to 3.1/2” (M-18 to M-85).
Subsea Suitability
A Complete tool is made from high strength stainless steel for use in corrosive sea environment and to minimize maintenance. Optional alloy steel construction also available.
Two Basic Parts
The tool consists of two basic parts-Tensioning Unit and Puller Nut as shown in the diagram and the datasheet below.
Flexiable Design
Designed to provide a wide range of flexibility, covering stud sizes 3/4” to 3.1/2” (M-18 to M-85) using just 8 load cells.
High Pressure Ratings
It Generates higher load making it suitable for high pressure rating flanges (API 170 – 10K).
All Magna mm60 bolt tensioners have a 25mm long stroke with piston marked with fluorescent rings for indication of stroke and over stroke limit.
Designed to release high pressure hydraulic oil inward in the event of over-stroke thus saving the operator from any potential exposure.
Fluorescent Band
Fluorescent band provided on load cell body for easy tool identification in poor visibility conditions.
Easy Under Water Handling
The Magna mm60 bolt tensioner is provisioned with detachable hooks and straps for easy handling under water. The tensioning unit cell is provisioned with two connections that act as a manifold for multi tensioning applications.
Longer Life and High Reliability
Fitted with Anti Roll, Composite Material seals for longer life and high reliability. The seals used have a low coefficient of friction so that the piston can be returned to a closed position with minimal effort. Sub Sea tensioners can be provided with machined PU (poly urethane) seals if requested.
Fast and Easy Fitment
Optional Split Nut available for fast and easy fitment which ensures most efficient use of expensive dive time.
Easy Handling
Knurled and formed surface allows easy handling.
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