Flowserve HV 215 - Manual (Page 27)

27
Connecting lines
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Installation
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If the design of the installation makes it difficult or impossible to run the connecting lines to the end attachments
of the actuating cylinders of the bottom valves HWV 205/ - DN 80 or HWV 25/ - DN 80, you can swop the end
connections of the actuating cylinders with the filling connections.
For this purpose use a spanner 9 mm A. F. Apply a torque of 40 Nm to fasten the connections (see below).
Attention
The hydraulic tubes must meet the requirements of DIN 239 and must be made of St 37.4 NBK
with a wall thickness of 0 x mm.
The hydraulic hoses must be in accordance with EN 853 - SN 8.
When installing the connecting lines make sure that the lines have a slight inclination towards the
middle such that the hydraulic system can be vented.
If necessary take additional precautions to prevent the transverse pipe-run from swinging.
The hydraulic tubes leading to the actuating cylinders must be provided with expansion loops in
order to absorb vibrations.
Check the soft seals of the connections for damage. Only soft seals that are not damaged can be
used again. Replace damaged gaskets and seals.
P P
Socket-weld end
for manifold
Connection for
indicating cylinder
HWV 205/
Standard arrangement when supplied
HWV 25/
Standard arrangement when supplied
Filling
connection
Filling
connection