QuickLock Operator Manual
23
QuickLock Operator Manual
– Version 15.07.01
2.5.4. Serial Installation (Standard Procedure)
Sleeves are installed in series when the damage extends longer than the distance between the
circumferential seals of a single sleeve.
During preparation, the projecting part of the rubber gasket is only trimmed off on the last sleeve
to be installed.
The installation procedure and installation pressures are the same as when installing single
sleeves.
The first sleeve facing against the direction of the flow must always have a beveled end
– all the
others are straight edge.
2.5.4.1.
Procedure Overview
Ideally, you should work
against the direction of flow
when installing the sleeves. The small offset
occurring in the area of the sleeve overlap will therefore not obstruct the flow.
Caution
– Special Scenarios
Extreme fragmentation & Longitudinal cracks
In these scenarios, reduce the installation pressure by (7.25
– 14.5 psi).
First place all the sleeves with the reduced installation pressure.
Only then apply the full installation pressure, in the same order that they were installed.
This can prevent fragments from coming loose or the pipe from collapsing, particularly if the pipe
bedding is damaged.
Incipient longitudinal crack
Where there is an incipient longitudinal crack, the entire length of the host pipe must be repaired
because the crack will continue to the end of the pipe, regardless of the repair.
6” QuickLock sleeves cannot currently be installed in a series.
Metal Overlap
Beveled End
3
rd
QL sleeve, beveled end
2
nd
QL sleeve, straight edge
1st QL sleeve, straight edge
Direction of flow
