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WST Series Subsea Bolt Tensioner

The WREN subsea tensioner is equipped with quick-release nuts and a unique patented seal, ensuring service life under high temperature and high pressure (1500 bar). It uses high-strength corrosion-resistant materials, enhancing the reliability of the equipment for deep-sea operations—enabling fast, efficient, and safe performance. To expand the application range of hydraulic bolt tensioners, WREN provides ultra-high pressure hoses with lengths ranging from 5 to 210 meters, and cable winders are included for extra-long hoses to facilitate use.

The WREN subsea tensioner is equipped with quick-release nuts and a unique patented seal, ensuring service life under high temperature and high pressure (1500 bar). It uses high-strength corrosion-resistant materials, enhancing the reliability of the equipment for deep-sea operations—enabling fast, efficient, and safe performance. To expand the application range of hydraulic bolt tensioners, WREN provides ultra-high pressure hoses with lengths ranging from 5 to 210 meters, and cable winders are included for extra-long hoses to facilitate use.

Product Details

- Quick Releasing Nut

- Two rotation way: manually or with Tommy bar

- Patented seals, protecting the service life of high temperature and high pressure

- High strength anticorrosion, prolong service life

- Easy operation with anti - skid function

- Over-stroke warning line

- Quick Releasing Nut

- Two rotation way: manually or with Tommy bar

- Patented seals, protecting the service life of high temperature and high pressure

- High strength anticorrosion, prolong service life

- Easy operation with anti - skid function

- Over-stroke warning line

Model Bolt size Maximum working pressure Maximum load Force-Bearing Area Maximum stroke Weight A B C D
bar kN mm² mm kg mm mm mm mm
WST1 M20 3/4" 1500 140 943 20 ≈1.7 66 96.5 48 117
M22 7/8"
WST2 M24 1" 1500 239 1596 30 ≈3.7 82 127 60 147
M27  
M30 1-1/8"
WST3 M33 1-1/4" 1500 380 2533 30 ≈6.0 97 137 77 163
M36 1-3/8"
WST4 M39 1-1/2" 1500 551 3676 30 ≈7.0 111 145.5 90 169.25
M42 1-5/8"
WST5 M45 1-3/4" 1500 880 5868 30 ≈11.2 136 158 114 189
M48 1-7/8"
M52 2"
WST6 M56 2-1/4" 1500 1564 10433 30 ≈21.3 177 180.5 140 223
M60  
M64 2-1/2"
M72 2-3/4"
WST7 M76 3" 1500 2576 17174 30 ≈33.6 217 202 180 255.25
M80  
M85 3-1/4"
M90 3-1/2"
Model Bolt size Maximum working pressure Maximum load Force-Bearing Area Maximum stroke Weight A B C D
bar kN mm² mm kg mm mm mm mm
WST1 M20 3/4" 1500 140 943 20 ≈1.7 66 96.5 48 117
M22 7/8"
WST2 M24 1" 1500 239 1596 30 ≈3.7 82 127 60 147
M27  
M30 1-1/8"
WST3 M33 1-1/4" 1500 380 2533 30 ≈6.0 97 137 77 163
M36 1-3/8"
WST4 M39 1-1/2" 1500 551 3676 30 ≈7.0 111 145.5 90 169.25
M42 1-5/8"
WST5 M45 1-3/4" 1500 880 5868 30 ≈11.2 136 158 114 189
M48 1-7/8"
M52 2"
WST6 M56 2-1/4" 1500 1564 10433 30 ≈21.3 177 180.5 140 223
M60  
M64 2-1/2"
M72 2-3/4"
WST7 M76 3" 1500 2576 17174 30 ≈33.6 217 202 180 255.25
M80  
M85 3-1/4"
M90 3-1/2"
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