
STANDARD Ve Joint
STANDARD Ve joint
The STANDARD Ve joint is a push-in anchored joint.
The anchoring mechanism takes up the axial forces and allows concrete anchor blocks to be dispensed with.
Range : DN 350 to 1200.
Principle
The principle of joint anchoring consists in transmitting the axial forces from one pipeline component to the following one, thus ensuring that the joint does not come apart.
Anchored joints allow the axial thrusts arising at particular points (bends, tapers, tees, blank flanges) to be distributed over one or more pipes, thus avoiding installation of concrete anchor blocks.
Description
The seal is provided by a STANDARD gasket.
The axial force transmission is through a mechanical arrangement, independent of that providing the seal, comprising :
- works applied weld bead on the pipe spigot,
- a one-piece or segmented anchoring locking ring (depending on the diameter), with a curved external profile, which abuts against the weld bead,
- a special gland (different from the EXPRESS gland), which blocks the locking ring
- iron bolts (possibly special steel with bearing plates in iron for high pressure and large diameter applications).
Range
The anchored STANDARD Ve joint must be used only on STANDARD pipes DN 350 to 1200 and STANDARD fittings DN 80 to 1200.
Applications
NATURAL pipes DN 60 to 300 (class 40) cannot be used for this anchoring solution.
To use it on C30 pipes from NATURAL range DN 350 to 600, please consult us.
The use of anchored joints is of particular interest where congested conditions preclude concrete anchor block construction or in poorly cohesive soils.
Performance
Anchored joints combine the advantages of flexible joint pipes and welded joint pipes.
Pressure
With iron bolts :
DN | Class | PFA Allowable operating pressure bar | PMA Allowable maximum pressure bar | PEA Allowable test pressure bar |
---|---|---|---|---|
DN350 | C30 | 27 | 32 | 37 |
DN400 | C30 | 25 | 30 | 35 |
DN450 | C30 | 23 | 27 | 32 |
DN500 | C30 | 22 | 26 | 31 |
DN600 | C30 | 20 | 24 | 29 |
DN700 | C25 | 20 | 24 | 29 |
DN700 | C30 | 25 | 30 | 35 |
DN800 to DN1000 | C25 | 16 | 19 | 24 |
DN800 to DN1000 | C30 | 16 | 19 | 24 |
DN1100 to DN1200 | C25 | 16 | 19 | 24 |
With steel bolts and bearing plates :
DN | Class | PFA Allowable operating pressure bar | PMA Allowable maximum pressure bar | PEA Allowable test pressure bar |
---|---|---|---|---|
DN800 to DN1000 | C30 | 25 | 30 | 35 |
DN800 to DN1200 | C25 | 20 | 24 | 29 |
Angular deflection
It's the same angular deflection with the two types of bolts.
Axial gap
Gap | ||
---|---|---|
DN | Aligned (mm) | Deflected (mm) |
350 | 43 | 17 |
400 | 42 | 12 |
450 | 43 | 9 |
500 | 43 | 6 |
600 | 46 | 2 |
700 | 99 | 41 |
800 | 100 | 34 |
900 | 98 | 25 |
1000 | 98 | 18 |
1100 | 115 | 26 |
1200 | 115 | 17 |