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: DN350 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

DN

Gap

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

 

Videos

STANDARD VE joint assembly on ductile iron pipe DN 350-1200 - Saint-Gobain PAM

More on STANDARD VE joint ...

g0uOni5tAzo