Tube and coupler scaffold
Tube and coupler scaffold, also known as tube and clamp scaffold, is a scaffolding mainly consisting of steel tubes and couplers. It allows connecting steel pipes and couplers at any interval, as long as there is no restriction due to engineering rules and regulations. Therefore, it can create a variable geometry scaffold system with strong adaptability to building and structures with complex geometries, and perform construction and maintenance works on the platform.
It can be flexibly assembled into birdcage scaffolding, suspended scaffolding and supported scaffolding. It is frequently used in refineries, petrochemical plant environments and power plants for construction, maintenance and restoration works. In addition, it can also be used to build ramps, sheds, stands and other temporary structures.
A: Steel Tube
It is the main part of the tube and coupler scaffold.
| Execution Standard | Tube Diameter | Tube Wall Thickness | Tube Weight | Tube Length | Zinc Content |
|---|---|---|---|---|---|
| EN 39 | 48.3 mm | 3.2 mm | 3.56 kg/m | 0.3–6.3 m | ≥40 microns |
| JGJ 130 | 48.3 mm | 3.6 mm | 3.97 kg/m | 0.3–6.3 m | ≥40 microns |
| EN 74 | 48.3 mm | 4 mm | 4.37 kg/m | 0.3–6.3 m | ≥40 microns |
B: Double Coupler
It is used to connect two steel tubes that intersect vertically. It relies on the friction force between the coupler and the steel tube to transfer the load.
| Execution Standard | Suitable Tube | Bolt | Nut Sizes | Weight | Material |
|---|---|---|---|---|---|
| BS 1139 / EN 74 | 48.3 mm | T-bolt | 17, 19, 21, 22, 23 mm | 1.05 kg | drop forged carbon steel |
C: Swivel Coupler
It is used to connect two steel pipes that intersect at any angle.
| Execution Standard | Suitable Tube | Bolt | Nut Sizes | Weight | Material |
|---|---|---|---|---|---|
| BS 1139 / EN 74 | 48.3 mm | T-bolt | 17, 19, 21, 22, 23 mm | 1.25 kg | drop forged carbon steel |
D: Sleeve Coupler
It is used to connect and extend the length of two steel pipes.
| Execution Standard | Suitable Tube | Weight | Material |
|---|---|---|---|
| BS 1139 / EN 74 | 48.3 mm | 0.95 kg | drop forged carbon steel |
E: Jack Base
It serves as the base of the scaffolding system. It helps keeping the scaffolding system stable by adjusting the height of the screw rod.
| Overall Height (mm) | Effective Length (mm) | Base Plate Length (mm) | Base Plate Thickness (mm) |
|---|---|---|---|
| 600 | 460 | 140 | 5 |
| 800 | 530 | 140 | 5 |
Tube and coupler scaffold
Forged double coupler connection details
Forged swivel coupler connection details
Tube and coupler scaffold for chemical plant maintenance
Tube and coupler scaffold for building maintenance
Tube and coupler scaffold for structure access
