SCHOTTEL SV 1, Manual

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12 / en STD--Wa 1099237 07/3110 Piping Systems for Hydraulic, Lubrication and Similar Systems 17
Threaded joint with cutting ring and DSW--sealing
The threaded joint is of the same design as the single
cutting ring joint.
The difference is in the elastomer sealing ring (16/1) be-
fore the cutting ring, which is used for primary sealing.
On supply, the sealing ring is bonded with the cutting
ring.
Mounting is carried out the same way, only checking the
collar in front of the cutting edge is a bit more difficult be-
cause of the additional sealing.
In case of need, the elastomer sealing ring can be re-
placed without problems.
1
Figure 16
Threaded joint with sealing cone and O--ring
This joint is compatible with the cutting ring joints.
It consists of a welded neck (17/3) with swivel nut (17/2)
and the connecting piece (17/4).
The welded neck has a conical end of 24
_
.
The sealing towards the connecting piece is provided
with an O--ring (17/1) at the conical end.
The joint can be mounted without further preparation.
Attention has to be paid that the conical end is not
crushed by positioning it crooked inside the coupling.
1
2
3
4
Figure 17
Elbows and T--pieces are provided with non--remov--
able swivel nuts.
For this, the swivel nut (18/2) is fixed at the conical end
with a retaining ring (18/1).
!
ATTENTION
Observe the correct tightening moment!
If such a swivel nut is tightened too much, the retaining
ring can break and the connection becomes leaky.
1
2
Figure 18