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5.1.7 Tapping of DAV-TL pressure tapping valves d 250 - 315 (400)
(Figure 17)
WARNING!
Because of tapping requirements,
the FRIALEN-pressure tapping
valves
≥
d 355 can only be installed
on pipes with SDR 17.
Installation, fusion and cooling times
as 5.1.3 et seq.
Tap by turning square spanner
clockwise up to lower end position.
The valve is now closed. In order to
open the valve, the tap must be moved
anti-clockwise up to the end position.
After arriving the end position turn
back approx. half a rotation.
The metal end points for the ‘open shut’ positions of the valve lead to a
distinctly noticeable increase in the activating force. As sealing takes place
in the closed position using a radially injected O-ring, it is not necessary to
apply a great deal of pressure when closing the valve.
Install the FRIALEN Installation Kit EBS on the 14 mm square of the DAV-TL
and secure the splint against pull out. Set the required overlapping height on
telescoping frame. Telescoping frame may be adjusted by sliding scale and
will stop securely at any point. The
FRIALEN
®
EBS
is technically perfectly
adapted to the
FRIALEN
®
DAV-TL.
Figure 17
FL_2104_8_GB_II_08.p65
25.03.2008, 9:48 Uhr
22
Summary of Contents for FRIALEN
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