
STANDARD Vi Joint
STANDARD Vi joint
The anchored STANDARD Vi joint is a push-in anchored joint for laying anchoring pipes.
The anchoring is designed to take up axial forces and allows laying without the need for concrete blocks.
It is suitable for all STANDARD sockets and all smooth spigots.
Range : DN 60 to 700
Principle
The basic principle of anchoring joints consists in transmitting the axial forces from one pipeline component to the next, thus ensuring that the joint does not come apart.
The STANDARD Vi joint gasket with its inserts anchors the socket joint by hooking onto the pipe spigot and so avoids having to install concrete blocks.
This anchoring system also avoids the need for a weld bead on the spigot, and so can be used with smooth spigots and in all STANDARD sockets.
Applications
The anchored STANDARD Vi joint is of particular interest in congested conditions that preclude the construction of concrete anchor blocks or in poorly cohesive soils, as well as laying pipes on a steep slope or in a casing.
The use of the anchored STANDARD Vi joint is not recommended when the joints are subjected to uncontrolled and repeated traction or joint deflection.
The anchored STANDARD Vi joint cannot be used on FGL iron pipes (grey iron).
Performances
The anchored STANDARD Vi joint combines the advantages of flexible joint pipelines with welded joint pipelines.
Pressure performance
DN | Class | PFA | PMA | PEA |
---|---|---|---|---|
Allowable operating pressure bar | Allowable maximum pressure bar | Allowable test pressure bar | ||
DN 60 | C40 | 22 | 26 | 31 |
DN 80 to DN 300 | C40 | 16 | 19 | 24 |
DN 350 to DN 400 | C30 | 16 | 19 | 24 |
DN 450 | C30 | 13 | 15 | 20 |
DN 500 | C30 | 11 | 13 | 18 |
DN 600 | C30 | 10 | 12 | 17 |
For higher pressures we shall use HPVi pipes
DN | Class | PFA (bar) | PMA (bar) | PEA (bar) |
---|---|---|---|---|
DN 60 | C64 | 30 | 36 | 41 |
DN 80, DN 100 and DN 150 | C64 | 25 | 30 | 35 |
DN 125 | C64 | 20 | 24 | 29 |
DN 200 to DN 300 | C50 | 20 | 24 | 29 |
DN 350 to DN 450 | C40 | 20 | 24 | 29 |
DN 500 | C40 | 18 | 21 | 26 |
DN 600 | C40 | 16 | 19 | 19 |
Angular deflection
DN | Allowable laid deflection | Displacement (cm) |
---|---|---|
DN 60 to DN 150 (6m) | 5° | 52 |
DN 200 to DN 250 (6m) | 4° | 42 |
DN 300 to DN 350 (6m) | 3° | 31 |
DN 400 to DN 600 (6m) | 2° | 21 |
Joint deflection
DN | Gap | |
---|---|---|
Aligned (mm) | Deflected (mm) | |
60 | 36 | 30 |
80 | 37 | 29 |
100 | 33 | 22 |
125 | 35 | 22 |
150 | 38 | 23 |
200 | 42 | 22 |
250 | 41 | 17 |
300 | 38 | 9 |
350 | 43 | 17 |
400 | 42 | 12 |
450 | 43 | 9 |
500 | 43 | 6 |
600 | 46 | 2 |
Disassembly
The anchored STANDARD Vi joint cannot be disassembled after pressure build-up.