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STU Imperial Range

STU3-162
  • Working pressure 1500 Bar
  • Interchangeable quickfit/release pullers
  • Load cell with integral bridge

Hi-Force STU series sub-sea bolt tensioners are designed and manufactured to suit the demanding requirements of divers operating in harsh sub-sea environments. With an easy to operate two piece design comprising of a quick fit/release threaded puller and a hydraulic load cell with integral bridge and an extra long 30mm piston stroke to reduce re-setting operations, Hi-Force STU series sub-sea bolt tensioners offer a consistent, reliable and cost effective method of tensioning sub-sea bolted joints. All hydraulic load cells are suitable for different thread sizes and interchangeable quick fit/release pullers can be ordered separately, as required, resulting in even greater flexibility and cost savings.

  • Dual hose connection for easy hook up
  • Extra long 30mm piston stroke to reduce re-setting time
  • Maximum piston stroke indicator
  • Corrosion protected for operation in harsh sub-sea environments
Sub-Sea Bolt Tensioners Imperial Range

Specifications

Model No. Bolt Thread Size Capacity Effective area cm2 Stroke mm Weight kg Tommy Bar Dimensions in mm
kN tonnes A B C D E F
STU1-100 1" - 8UN 256.04 26.10 17.07 20 3.4 TTB06 82 22 119 119 140 61
STU1-112 1 1/8"- 8UN 256.04 26.10 17.07 20 3.4 TTB06 82 22 119 119 140 64
STU2-125 1 1/4"- 8UN 430.36 43.87 28.69 30 6.0 TTB08 102 30 140 140 164 73
STU2-137 1 3/8"- 8UN 430.36 43.87 28.69 30 6.0 TTB08 102 30 140 140 164 75
STU3-150 1 1/2"- 8UN 553.35 56.41 36.89 30 7.5 TTB10 114 35 142 142 169 82
STU3-162 1 5/8"- 8UN 553.35 56.41 36.89 30 7.5 TTB10 114 35 142 142 169 85
STU4-175 1 3/4"- 8UN 756.30 77.09 50.42 30 9.8 TTB10 128 41 151 151 181 94
STU4-187 1 7/8"- 8UN 756.30 77.09 50.42 30 9.8 TTB10 128 41 151 151 181 98
STU5-200 2" - 8UN 1168.19 119.08 77.88 30 14.5 TTB12 150 48 164 164 202 112
STU5-225 2 1/4" - 8UN 1168.19 119.08 77.88 30 14.5 TTB12 150 48 164 164 202 116
STU6-250 2 1/2" - 8UN 1649.12 168.11 109.94 30 22.8 TTB14 176 60 183 183 231 136
STU6-275 2 3/4" - 8UN 1649.12 168.11 109.94 30 22.8 TTB14 176 60 183 183 231 141
STU7-300 3" - 8UN 2483.44 253.15 165.56 30 35.6 TTB16 215 89 215 215 260 162
STU7-325 3 1/4" - 8UN 2483.44 253.15 165.56 30 35.6 TTB16 215 89 215 215 260 173
STU7-350 3 1/2" - 8UN 2483.44 253.15 165.56 30 35.6 TTB16 215 89 215 215 260 175

Note: Tommy bars are not included. Hi-Force recommends one tommy bar for every four tensioners. Please note that the tommy bar listed will fit related quickfit puller; a different size may be required for the hexagon nut.

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