How To Choose The Rigid Pipes For Models Up39 I R - Up 45 I R - Ultraflex UP25 F Manuel D'installation Et D'entretien

ULTRAFLEX
WARNING
Keep the pipes far from heat sources and from chemical
substances. Protect the pipes that must pass through bulkheads
by using suitable thru hulls. The bends must be perfectly smooth;
any bent pipe or dent would prevent the hydraulic oil passage.
WARNING
Keep clean. Make sure that working areas are free from dust and
dirt. The protective plugs of threaded holes must be removed only
before the connection of fittings and pipes. Make sure that pipes
are perfectly clean and free from swarf. If copper or steel pipes
are used, cleaning is mandatory. If the installer uses pipes that
are different from Kit OB, he must take full responsibility for it.
WARNING
At the end of the installation make sure that the pipes do not
interfere with the engine and with fixed or mobile parts of the
boat or of the steering system itself.
WARNING
The minimum bending radius of the pipes is 250 mm. Any
excessive pipe bending could break them by compromising the
good operation of the system. If necessary, replace the damaged
pipe.
3.10.2 How to choose the rigid pipes for models UP39-I R and UP 45-I R
PIPE MATERIAL: STEEL
St. 37.4 (=St 35.4, 1.0255) DIN 2391/ DIN 1630
E 235 (= 1.0308) EN 10305-4
R37 ISO 3304
St 52.4 (= 1.0580) DIN 2391
E355 (= 1.0580) EN 10305-4
R50 ISO 3304
PIPE MATERIAL:
STAINLESS STEEL
1.4571 (= TP 316 Ti)
DIN 2391
1.4541 (= TP 321)
1.4404 (= TP 316L)
EN ISO 1127 o Astm A269
1.4301 (= TP 304)
1.4401 ( = TP 316)
1.4301 (= TP 304)
EN ISO 1127
1.4541 (= TP 321)
PIPE MATERIAL:
COPPER
R 290 EN 1057
page 26
of 101 -
PUMP FOR HYDRAULIC SYSTEMS
SPECIFICATIONS STRUCTURE
Cold-drawn
without welding
SPECIFICATIONS STRUCTURE
Cold-drawn
without welding
Weld-in pipe
SPECIFICATIONS STRUCTURE
Weldless pipe
Installation and maintenance manual
TOLERANCE BETWEEN
CONDITIONS EXT. DIAM./WALL
NBK, DIN 2391-2 DIN 2391-1-C
+N (=normal annealed) EN 10305-4
NBK (=normal annealed) ISO 3304
NBK, DIN 2391-2 DIN 2391-1
+N (=normal annealed) EN 10305-4
NBK (=normal annealed) ISO 3304
TOLERANCE BETWEEN
CONDITIONS EXT. DIAM./WALL
Soft annealed DIN 17458
Soft annealed
D4/T3 (EN ISO 1127)
DIN 17457-K2 for 6-12 mm ext.
diam., cold-drawn welded
(CDW) with smooth external
surface for 14-42 mm ext. diam.
TOLERANCE BETWEEN
CONDITIONS EXT. DIAM./WALL
EN 1057
NO
SURFACE
THICKNESS
Phosphated,
lubricated or A3C
(coated with zinc
and yellow
chromium-plated)
SURFACE
THICKNESS
DIN 2391-1
Smooth
Smooth, almost
invisible welding
SURFACE
THICKNESS
EN 1057 Clean and smooth