23
5.2 VAM-RG-TL Valve Tapping Saddles d 250 - 315 (560)
5.2.1 Assembly
The preparation of the installation
and the fusion process is made
analogue to the FRIALEN
®
Pressure
Tapping Tee (see 5.1.1 to 5.1.4).
WARNING!
The fusion range of the saddle
covers the dimensions d 250 up
to d 560. If necessary application
technology restrictions must be considered by drill tool (usually
applicable until d 315 SDR 11).
Restrictions concerning the application must be considered, e.g. length
of drilling tool. Details of these components, given by manufacturer,
have to be regarded.
The cooling times are to be observed (see item 5.1.5 Pressure Tapping Tee).
The fitting is drilled using a suitable close-off device or fitted with a valve in
accordance with the relevant Fitting Instructions from the different valve
manufacturers. The preparation and conduct of the pressure test are carried
out in accordance with the details given by the valve manufacturer.
The threaded components fitted at the factory must be secured with a
spanner to prevent them from twisting.
Care should be taken to ensure that the insulation work is carried out in
accordance with the regulations (DVGW Standard Publication).
5.3 SPA-TL Shut off Saddles
Top-Loading d 250 - 315 (560)
5.3.1 Assembly
WARNING!
The fusion dimensions of the component includes d 250 - d560. If
necessary application technological restrictions have to be regarded.
For example by borer tool or balloon, normally applicable up to d 315
SDR 11. Details of these components, given by manufacturer, have to
be regarded. Processing temperature: between 0 °C and 45 °C.
Figure 18
FL_2104_8_GB_II_08.p65 25.03.2008, 9:48 Uhr23
To Next Page
Loading...