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Installation instructions ISO-Pipe-Fitting
with Detachable Taper
Sample picture
1. Intended use
Medium:
potable water / waste water
Max. operating pressure:
PE 100
PE 80
PE-X
Material:
Body: ductile iron, epoxy powder-coated
Grip ring: Delrin | O-Ring: EPDM
Hawle ISO-Pipe-Fittings with detachable taper acc. to DIN 8076 are intended for use in the field of buried
pipeline construction and in facilities for water distribution in combination with PE pipes acc. to DIN 8074 /
EN 12201 and PE-X acc. to DIN 16893, as well as with PVC pipes acc. to DIN / EN / ISO 1452-2 upon
request.
For installation, assembly, and maintenance, the applicable standards and regulations, accident prevention
regulations, as well as the trade associations' provisions shall be complied with. Installation, assembly, and
maintenance should be performed by skilled personnel only.
The reliable sealing to the pipe is accomplished through a large-volume O-ring of highly elastic rubber.
The pipe is kept by the respective grip ring. The even distribution of the retaining forces ensures that no
notch stress is transferred to the pipe. When the pipe is subjected to pulling forces, the grip ring is pulled
into the conical chamber, which increases the tensile strength of the connection.
2. Installation
Mounting spray, Pipe cutter,
Locking key
Please note: When the fitting is used again, the grip ring, and sometimes also the O-ring,
shall be replaced.
PN 16
PN 12,5
PN 12,5
1.
In case of pipes with very smooth surfaces (e.g. PE-X pipes) we recommend roughening the pipe end
only in the area of the grip ring (see table) perpendicular to the pipe axis!
ISO Fitting
d 32
d 40
d 50
d 63
2. Use pipe ends without notches and scratches. Cut the pipe straight using a sharp PE cutter.
Make sure that the cutting edge is free from burrs.
3. The pipe and fitting must be clean and free from lubricants. Mark the push-in length at the pipe.
Please note: Before installation, check the push-fit fitting for being complete (O-ring and grip ring),
and for the correct seat of the O-ring and grip ring!
4. Push on the ISO-Pipe-Fitting completely by turning and wiggling it. To facilitate installation,
use only clear water or Hawle installation spray (no grease or soap)!
5. Check tensile strength and leak tightness by performing a pressure test.
3. Dismantling:
1. Relieve the fitting or pipe in mounting direction!
2. Remove the retaining ring. Unscrew the taper (blue cast iron ring) with locking key. If the fitting is
used again, exchange the grip ring. Check the O-ring gasket and, if necessary, exchange it, too.
4. Servicing and maintenance:
Hawle ISO-Pipe-Fittings with detachable taper are maintenance-free.
5. Commissioning and pressure-testin:
After completion of the installation work, perform a pressure test according to EN 805.
(see Water Catalogue page 6).
Sooner or later, even the best product will reach the end of its useful life and should be recycled as
sustainably as possible. Please observe our disposal recommendations.
If you have any other questions or if you need more information,
please contact your local Hawle branch.
A
R
Roughening area R in mm
A
R
33,0
18,0
34,0
24,0
34,5
26,5
52,5
30,0
E. Hawle Armaturenwerke GmbH
Wagrainer Straße 13 | 4840 Vöcklabruck | Austria | hawle.com
Ausgabe | Edition 04.2020 | 5030142
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