VEGA VEGASWING 63 Lock fitting ARV-SG63.3 – pressure range: -1…64 bar - Manual (Page 6)

4 Mounting
4.1 General instructions
The note of the following general safety instructions:
l
Dismount the lock fitting only in unpressurized condition
l
Use only suitable graphite gasket rings (article no.
2.29849). Make sure that the graphite gasket rings are not
damage. Damaged rings are no longer tight. If you are not
sure, use new rings.
l
Only use approved hexagon screws DIN 912 M6 x 25 of
A4-70 acc. to AD leaflet W2. The corresponding spring
rings B6 must be made of A4 acc. to DIN 7980.
l
Before screwing in, grease the thread and support of the
terminal screws with a suitable lubricant. The lubricant
must be suitable for material compositions 316L/316L or
2.4602/316L (Hastelloy/StSt) and for a temperature range
of -50 … +250°C, e.g. Varybond type NSS-16/7. When
shipped, the threads are already lubricated.
4.2 Mounting procedure
The lock fitting is already premounted.
The numbers in brackets refer to the following illustration.
1 Loosen holding screw (6) and remove locking angle (4)
2 Screw mounting boss (7) with a resistant seal ring into the
thread of the vessel and tighten the mounting boss (7) on
the hexagon (SW 41 or SW 60)
3 Clean the connection tube of the sensor and the surfaces
of the clamp (1) as well as the pressure screw (11)
carefully and remove grease, oil and dirt. Insert the sensor
into the lock fitting. Slide the tube into the requested
position and hold it
4 Make sure that the sensor is in the the correct position
(height). The height adjustment of the sensor determines
also the switching point
5 Tighten pressure screw (11) with a torque of 70 ±10 Nm
(51 ±7 lbf ft)
6 Turn pressure screw (11) clockwise until the hexagon
surfaces of the pressure screw (11) and the mounting boss
(7) corresponds (max. 1/6 turn)
6 Lock fitting ARV-SG63.3 - – pressure range -1 … 64 bar
Mounting
29752
-EN
-050804