EXPRESS Vi Joint

EXPRESS Vi joint

The ANCHORED EXPRESS Vi joint is a mechanically 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 EXPRESS socket pipes and all smooth spigot ends.
Range DN 60, 125, 200 to 300.

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 inserts in the EXPRESS Vi anchoring gasket anchor fittings (bends, tees, tapers, collars, etc.) by hooking onto the pipe spigot end, and thus avoid having to install concrete anchoring blocks.
This anchoring system also avoids the need for a weld bead on the spigot and so can be used with all smooth spigot ends and in EXPRESS sockets.

EXPRESS Vi description

Gland
Anchoring gasket with inserts
Spacer
Bolts
Joint sealing gasket
Tracing gauge to mark the insertion depth, which also has the joint assembly instructions.
All these parts are delivered in kit form.

Range

NATURAL EXPRESS pipes and EXPRESS fittings from DN 60, 125, 200 to 300.

Applications

Buried or above-ground pipelines.
Replacement of concrete anchoring blocks when they require too much space or are difficult to install. Installation on steep slopes or in a casing.
Savings in laying time.
The EXPRESS Vi joint can be used with all EXPRESS fittings, and anchors to spigot ends of all pipes or ductile iron fittings presented in this catalogue.
The thickness of the spigot coating should not exceed 600 microns.

The EXPRESS Vi joint is not suitable for pipes in FGL iron (grey iron).

Installation

The ease with which this joint can be assembled and disassembled makes it particularly suitable for situations where it is difficult to achieve an axial force, assembling fittings, pipe laying in congested ground, tunnels, etc.

Performances

Leaktightness

The leaktightness of this joint is a direct function of the bolt tightening torque, and adherence to PAM’s assembly instructions.
The allowable operating pressures (PFA) are the following :
- DN 60: 25 bar.
- DN 125: 22 bar.
- DN 200, 250 and 300: 16 bar.

Orientation of parts on assembly

Parts can be easily orientated around their axis before final tightening of the bolts. This is particularly useful when assembling fittings.

Angular deflection

Joint deflection