Download - UniTwist

UniTwist
Push-fit Compression Fittings www.unitwist.co.za
www.unitwist.co.za
Code of Practice for UniTwist
Types of Installations
a)
Underground and Trenches
When closing it is advised to leave all joint area's open under pressure for an hour or more to make sure the joint
is dry and strong.
Make sure you don't pull the pipe tight. Leaving some play will prevent the pipe from “pulling” out of the fitting should there be
some movement when filled.
Always make sure when closing there are no sharp objects that may damage the pipe.
b) Surface mounts
Wombats should preferably be fitted on a horizontal run 350mmto 500mm apart. This provides stability and helps with keeping
the pipe straight. Corners should have wombats within 100mm of each side of the corner for extra strength.
On a Vertical run, centres should be measured at least at 1metre intervals, for a perfect hold.
c) Inside wall
Make sure you don't pull the pipe tight. Leave some play when plastering or encasing the fitting in a dry wall.
This will prevent the pipe from pulling out of the fitting with expansion and contraction.
Always turn the water on for at least 1hour before closing up allowing you to inspect.
Take care not to anchor the pipe with any sharp objects (bent nails etc.)
d) Ceilings
Fittings should be anchored firmly to prevent water hammer. All pipes should be fixed securely to timber, allowing for expansion
and contraction. Take care not to anchor pipe with any sharp objects (bent nails etc.)
Cut pipe
a)
b)
c)
d)
e)
Turn nut anti-clock 1 turn
Insert pipe to stop
Turn to tighten
When using a UniTwist push-fit compression fittings with UniTwist Monogold PP-R pipe, Polycop, polypipe, Copper or any
other type of pipe, please observe the following important points:
Cut the pipe then make a mark 3cm from the end as a depth indicator.
Loosen nut COUNTER CLOCKWISE 1 full turn (360 degrees)
Push pipe into fitting 3cm or until you can't see the depth indicator.
Tighten nut CLOCKWISE using a water-pump plier, spanner or tool of choice for an excellent seal.
Please note your warranty and SABS installation will be put in jeopardy if you use any other pipe other than
UniTwist Monogold, this is because the SABS test was done with UniTwist Monogold.
To remove the fitting from the pipe, loosen nut completely until it separates from the body and pull the pipe out, remove parts
from the pipe and re-assemble.
To re-use fitting replace all the loose components in the following order:
O-Ring
Spacer
BH2080A
20% PP-R
Grip ring (Conical shape facing upwards)
Nut
HHN: 304SS
BODY
PP-R
BH2083A
EPDM
BH2083A
EPDM
BH2080B
20% PP-R
HHN: 304SS
Patent No. 2010/04923

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