Model Type MS - Multistage Bolt Tensioning Cylinder
From Tension & Torque Tools - Bolt Tensioning Cylinders
Slim design : For vertically open but limited radial clearance applications. ITH safety concept: Patented safety features cycle counter, safety handle, and safety fracture device. Standard and large-scale: For bolted connections from M16 (5/8') and up.
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Applications
Clearance: radially limited, vertically open
ITH Bolt Tensioning Cylinder type MS with NIOX surface coating, patented safety handle and cycle counter is used on the horizontal casing flange on a 250 MW gas turbine. For this casing ITH round nuts are used. The nuts are tightened down using a turning pin through the support opening at the turning sleeve.
To match specific requirements of applications ITH is able to customize the design. In this case the support - the lower part of the tool - is chamfered.
Features
- NIOX coating
- Patented safety concept
- Patentierted cycle counter
- Automatic piston return
- Exchangable change bushing
- Spring loaded turning sleeve & control notch
- Optional measurement slot
- Direct gear drive
- Carrying strap and options
- Hydraulic connection
Function
Design
Type MS (Multi-stage): Tall & slim design for vertically open but limited radial clearance applications
Standard scope
- design for bolt quality 10.9: M 16 to M 110
- Please contact us for bolt qualities 5.6, 6.8, 8.8 or 12.9 or customer specific designs and dimensions.
Thread projection
The minimum required thread projection of the bolt above the nut: 1,0 x d of the bolt (depending on the preload force). If there is not enough thread projection ITH recommends the use of ITH tension nuts.
The BTC can be used for the following fastener configurations
Hexagon nuts
- ISO 4032: Hexagon nuts (former DIN 934)
- DIN 2510-5: Hexagon nuts
- EN 14399-4: High strength pre tension able bolt connections for the steel constructions (former DIN 6915)
- Heavy hex nuts
- Hexagon nuts according to customer designs
Round nuts:
- Round nuts with radial hole
- Round nut with center holes
- ITH Round nuts RMS /RMZ
- IHF Round nuts
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