Facing Component Butts - Hürner EasyWeld 110 Mode D'emploi

H Ü R N E R S c h w e i ß t e c h n i k G m b H
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35325 Mücke, Deutschland
As a preparation to the welding process and prior to it, the applicable
welding forces F and welding times t have to be looked up in the tables
in the appendix (see Sect. 5.4 ff. below).
All force values F in the tables in the appendix are for a
straight joint. In angled joints, all values are identical,
excepting forces, to which apply other values, F
Important
depending on the planned angle α according to the following
F
equation:
α
where the following applies for the coefficient:
α = 11.25 deg. —
α = 15 deg.
α = 22.5 deg.
α = 45 deg.
Sample calculation:
Material PE 80, diameter 63 mm, SDR 11, α = 15°
F
F =
α
coeff
α
Switching the heating element on by plugging its power cord into the
mains supply is part of the preparation of the jointing. The heating
element will have the nominal temperature only after some time.
The heating element enables manual temperature control. The tem-
perature required for the welding operation can be set with the
turning selector, based on the provided scale. Power is supplied to it
as soon as the red indicator light is on. As long as the green indicator
light flashes, the heating element is adjusting the temperature. When
the green indicator light is constantly lit, this temperature has been
reached and welding can be started. A flashing red light indicates a
malfunction that prevents further use of the heating element.
5.2

Facing Component Butts

Place the facing tool between the component butts, setting it onto
the upper rod and against the lower rod and secure it by turning the
appropriate knob. If the power facing tool is used, press the trigger-
style pushbutton at this point and hold it pressed-down. Then use the
hand wheel to move the movable carriage of the machine in on the
fixed carriage. The power facing tool then works both component
butts automatically. With the manual facing tool, the blade is driven
by the back and forth of the arm, as though a ratchet spanner.
When the clamps are set at an angle, the facing tool has
to be moved forward or backward on its support, so the
components are in a centered position with respect to the
Important
facing tool. To move it, loosen, then retighten the knob or
the knobs under the facing tool.
Facing is properly completed when a continuous blade of material
is cut from both component butts. This typically requires a force of
about 150 N. The facing force has to be set and kept according to the
indicator using the hand wheel.
Facing for the second joint when making tees
When facing for the second joint in making a tee, be sure that the
section surface of the cut right-angle first joint (B) does not exceed
the section surface of the third pipe (A) (see figure to the right).
Version September 2016
F
=
coeff
α
coeff = 0.981
α
— coeff = 0.966
α
— coeff = 0.924
α
— coeff = 0.707
α
156,3 N
F =
=
15°
0,966
HÜRNER EasyWeld 110 (T) User's Manual
, computed
α
=
161,80 N
9
EN