STU – Sub sea bolt tensioner – imperial

STU – Sub sea bolt tensioner – imperial
  • Interchangeable quickfit/release pullers
  • Working pressure 1500 Bar
  • Load cell with integral bridge
  • 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

Product description

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.

Technical parameters

Model number
Bolt thread size
Capacity
Effective area
 Stroke WeightDimensions
[kN][T][cm2][mm][kg][mm]
       ABCDEF
Tensioner STU1-1001”-8UN256.0426.1017.07203.4 8222129129150 61
Tensioner STU1-1121 1/8”-8UN256.0426.1017.07203.4 82 22 129 129 150 64
Tensioner STU2-1251 1/4”-8UN430.3643.8728.69306.0 102 30 140 140 164 73
Tensioner STU2-1371 3/8”-8UN430.3643.8728.69306.0 102 30 140 140 164 75
Tensioner STU3-1501 1/2”-8UN533.3956.4136.89307.5 114 35 142 142 169 82
Tensioner STU3-1621 5/8”-8UN533.3956.4136.89307.5 114 35 142 142 169 85
Tensioner STU4-1751 3/4”-8UN756.3077.0950.42309.8 128 41 151 151 181 94
Tensioner STU4-1871 7/8”-8UN756.3077.0950.42309.8 128 41 151 151 181 98
Tensioner STU5-2002”-8UN1168.19119.0877.883014.5 148 48 164 164 202 112
Tensioner STU5-2252 1/4”-8UN1168.19119.0877.883014.5 148 48 164 164 202 116
Tensioner STU6-2502 1/2”-8UN1649.12168.11109.943022.8 176 60 183 183 231 136
Tensioner STU6-2752 3/4”-8UN1649.12168.11109.943022.8 176 60 183 183 231 141
Tensioner STU7-3003”-8UN2483.44253.15165.563035.6 215 89 215 215 260 162
Tensioner STU7-3253 1/4”-8UN2483.44253.15165.563035.6 215 89 215 215 260 173
Tensioner STU7-3503 1/2”-8UN2483.44253.15165.563035.6 215 89 215 215 260 175
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