Helden AquaFast Notice De Montage page 2

AquaFast Coupling
The AquaFast couplings are supplied pre-assembled and should not be
dismantled prior to installation.
A B
AquaFast coupling is suitable for use on the following pipe materials:
• MDPE (PE80) & HPPE/HDPE (PE100) Polyethelene pipe – SDR17/17.6
& SDR11 with up to 3% ovality.
Support liners are not required.
Installation of AquaFast Coupling:
1) Check that pipe is suitable for AquaFast coupling.
Pipe surface must be clean and free from score marks that
may provide a leak path. The cut end should be square.
Chamfer the pipe edge, at least 45° x 20mm is recommended for
ease of installation. A thin layer of WRAS approved lubricant should
be applied to the pipe end and the 1st lip gasket before installation.
2) To aid installation, mark both pipes with the insertion depths
(See Table 1), using the end of the pipe as a reference (See Fig 1).
3) Slide the AquaFast coupling fully onto one of the in situ pipes
as far as it will go, this will be until the pipe is pressed
against the lip of the 2nd gasket (See Fig 2).
4) Align the two pipes (See fig 3) and adjust the
setting gap (See Table 1).
5) Using the marks made in (2), slide the AquaFast coupling
to a central position over the pipe ends (See Fig. 4). The end of the
product should align with the insertion depth marks on the pipe.
6) The clamp bands can be rotated to ensure the bolts are in the
desired position for tightening. If an adjustment needs to be made
unwind the bolts enough to allow the clamp bands to be rotated.
Rotate clamp bands to desired position. Please note the bolts
used are reversible to add additional flexibility to the installation.
REV01
C D E F G
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Components to
AquaFast Coupling:
A) Clamp Bands
B) Clamp Band Fin
C) Gripper Rings
D) Gasket
E) Sleeve
F) Centralisation Bolt
G) Fasteners: Bolts / Nuts/
Washers / Nut Retainers /
Reversible Washers / Bolt Caps