STS – Topside bolt tensioner – imperial

STS – Topside bolt tensioner – imperial
  • Bolt sizes from 3/4” to 4”
  • Working pressure 1500 Bar
  • Modular design for optimum versatility
  • Capacities from 234 to 2649 kN
  • Single acting design

Product description

The STS imperial bolt tensioner range is designed for topside operation in a wide variety of applications including pipeline flanges, heat exchangers, pressure vessels, compressor covers, boiler feed pumps, anchor bolts and many others. The range comprises of 26 imperial size options ranging from ¾” to 4” thread size and all models are suitable for working pressures up to 1500 Bar. Each model of hydraulic tensioning cylinder within the tensioner range can be operated with a variety of threaded pullers and nut rotating sockets ensuring that the maximum possible range of bolt sizes can be accommodated using the minimum number of hydraulic cylinders.
All Hi-Force hydraulic bolt tensioners are designed and manufactured to include a wear coated piston, maximum piston stroke indicator, self-energising high pressure seals, dual quick connect couplings for easy multiple tensioner connection and a user friendly operation and maintenance procedure.

Technical parameters

Model number
Bolt thread size
Threads per inchCapapcity
Effective area
StrokeWeightDimensions
[kN][T][cm2][mm][kg][mm]
        ABCDEF
Tensioner STS1-075B13/4”1023423.915.6101.7742874904551
Tensioner
STS1-087B1
7/8”923423.915.6101.7 74 28 74 90 45 54
Tensioner
STS1-100B2
1”823423.915.6101.7 74 30 80 98 45 61
Tensioner
STS1-112B2
1 1/8”823423.915.6101.7 74 30 80 98 45 64
Tensioner
STS2-125B1
1 1/4”845746.630.5153.5 102 39 103 128 54 74
Tensioner
STS2-137B1
1 3/8”845746.630.5153.5 102 39 103 128 54 77
Tensioner
STS2-150B1
1 1/2”845746.630.5153.5 102 39 103 128 54 80
Tensioner
STS3-162B1
1 5/8”882283.854.8156.1 133 47 115 150 56 92
Tensioner
STS3-175B1
1 3/4”882283.854.8156.1 133 47 115 150 5693
Tensioner
STS3-175B2
1 3/4”882283.854.8156.1 133 50 117 155 56 104
Tensioner
STS3-187B1
1 7/8”882283.854.8156.1 133 47 115 150 56 97
Tensioner
STS3-187B2
1 7/8”882283.854.8156.1 133 50 117 155 56 104
Tensioner
STS3-200B2
2”882283.854.8156.1 133 50 117 155 56 104
Tensioner
STS4-187B1
1 7/8”81264128.984.31510.6 163 50 119 149 57 104
Tensioner
STS4-200B1
2”81264128.984.31510.6 163 50 119 149 57 104
Tensioner
STS4-200B2
2”81264128.984.31510.6 163 62 119 149 57 106
Tensioner
STS4-225B2
2 1/4”81264128.984.31510.6 163 62 135 165 57 121
Tensioner
STS4-250B2
2 1/2”81264128.984.31510.6 163 62 135 165 57 127
Tensioner
STS5-250B1
2 1/2”81833186.9122.21516.0 193 73 145 187 60 134
Tensioner
STS5-275B1
2 3/4”81833186.9122.21516.0 193 73 145 187 60 140
Tensioner
STS5-300B1
3”81833186.9122.21516.0 193 73 145 187 60 147
Tensioner
STS6-300B1
3”82649270.0176.61523.5 233 84 178 216 64 161
Tensioner
STS6-325B1
3 1/4”82649270.0176.61523.5 233 84 178 216 64 167
Tensioner
STS6-350B1
3 1/2”82649270.0176.61523.5 233 84 178 216 64 172
Tensioner
STS6-375B3
3 3/4”82649270.0176.61523.5 233 105 205 257 64 191
Tensioner
STS6-400B3
4”82649270.0176.61523.5 233 105 205 257 64 196
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