STU Range - Imperial | Hi-Force | Bolt Tensioners | HES
Hi-Force product

STU Range - Imperial

Sub-Sea Bolt Tensioners - Imperial

  • Single acting design with manual piston retraction
  • High grade alloy steel construction
  • Simple two piece design for easy operation by divers subsea
  • Visible maximum piston stroke indicator
Enquire now

Product Overview

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 30 mm 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.

  • Capacities from 256 to 2483 kN
  • Bolt sizes 1" to 3½” diameter
  • Working pressure 1500 bar

Product resources

More Product resources

Technical specifications

Model NumberQuick fit pullerBolt Thread SizeCapacityEffective area cm2Stroke mmWeight kgTommy Bar
kNtonnes
STU1-100QFP1-1001" - 8UN25626.117.1203.4TTB06
STU1-112QFP1-1121 1/8"- 8UN25626.117.1203.4TTB06
STU2-125QFP2-1251 1/4"- 8UN43043.928.7306.0TTB08
STU2-137QFP2-1371 3/8"- 8UN43043.928.7306.0TTB08
STU3-150QFP3-1501 1/2"- 8UN55356.436.9307.5TTB10
STU3-162QFP3-1621 5/8"- 8UN55356.436.9307.5TTB10
STU4-175QFP4-1751 3/4"- 8UN75677.150.4309.8TTB10
STU4-187QFP4-1871 7/8"- 8UN75677.150.4309.8TTB10
STU5-200QFP5-2002" - 8UN1168119.177.93014.5TTB12
STU5-225QFP5-2252 1/4" - 8UN1168119.177.93014.5TTB12
STU6-250QFP6-2502 1/2" - 8UN1649168.1109.93022.8TTB14
STU6-275QFP6-2752 3/4" - 8UN1649168.1109.93022.8TTB14
STU7-300QFP7-3003" - 8UN2483253.2165.63035.6TTB16
STU7-325QFP7-3253 1/4" - 8UN2483253.2165.63035.6TTB16
STU7-350QFP7-3503 1/2" - 8UN2483253.2165.63035.6TTB16

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.

Dimension

Hi force dim draw bolt tensioners STU

Dimensions (mm)

Model Number
ABCDEF
STU1-100822211911914061
STU1-112822211911914064
STU2-1251023014014016473
STU2-1371023014014016475
STU3-1501143514214216982
STU3-1621143514214216985
STU4-1751284115115118194
STU4-1871284115115118198
STU5-20015048164164202112
STU5-22515048164164202116
STU6-25017660183183231136
STU6-27517660183183231141
STU7-30021589215215260162
STU7-32521589215215260173
STU7-35021589215215260175

Services and support

Whether it is choosing the right tool for the job, improving technical and operational knowledge or product maintenance and warranty, HES is here to help.

Tell me more

Enquire now

Want to know more about the range? Our product team are on hand to support you with your requirements. Speak to our team today.

Enquire

Related products

SBT Range - Imperial

Hi force bolt tensioners sbt2 125b1

Spring Return Topside Bolt Tensioners - Imperial

View

STS Range - Imperial

Hi force bolt tensioners sts2 125b1

Topside Bolt Tensioners - Imperial

View

STS Range - Metric

Hi force bolt tensioners sts2 125b1

Topside Bolt Tensioners - Metric

View

HTN Range - Metric

Hi force bolt tensioners htn 11 250

Hydraulic Tensioner Nuts - Metric

View
Hire from HES