Page 20 - NovaFlex_MarineBroch (Page 1)

Correct Assembly Installation
Satisfactory performance and appearance depends upon proper hose
installation. Excessive length destroys the trim appearance and adds
unnecessary stress to the hose if it causes the hose to exceed
minimum bend radius. Hose assemblies of insufficient length may
cause coupling pull out or over stress the hose causing short service
life.
The diagrams below offer suggestions (for other configurations contact
Novaflex Marine for proper hose installation).
WRONG
RIGHT
Under pressure hose may change in length. Always
provide some slack for the hose to move –4 to + 5% .
T
R
A
V
E
L
WRONG RIGHT
Never place sharp hose bends near coupling. Hose should be
installed so that flexing takes place in one plane only & direction
of motion must be perpendicular.
WRONG RIGHT
T
R
A
V
E
L
TRAVEL
Prevent twisting, torque or distortion, hose
should be bent in same plane as motion.
TRAVEL
Avoid hanging hose from horizontal
fixtures.
WRONG RIGHT
T
R
A
V
E
L
TRAVEL
When the hose minimum bend radius
is exceeded, use angled adaptors to
meet radius requirements
RIGHT WRONG
TRAVEL TRAVEL
NovaFlex 12
S T A M P E
S Size......................The hose inside diameter (I
applications requirements (
T Temperature........ Maximum & minimum tem
through the hose assembly.
A Application.......... Describe the actual use of
ing, LPG transfer, in plant
M Material................ Air, water, the specific che
Conveyed or material conveyed ( i.e.
P Pressure…………. The pressure or vacuum
veyed through the hose
E Ends………………. Type of end connections
Marine hose to the mating
Groove, Acme swivel etc
D Delivery…………… Date the product is requ
Once the information in the acronym “STAMPED”
essential that a hose and coupling combination m
requirements as recommended by Novaflex Marine
“ Always use the printed information from Nova
any recommendation.” Do not exceed the printed
It is the ultimate objective to obtain maximum s
accomplish this Novaflex Marine recommends
during the use of the hose assembly to insure c
Elements of a
Tube — Its purpose is to handle the liquid, solid or
transferring. The tube is the innermost e
be resistant to the product conveyed.
Reinforcement— Its purpose is to withstand the w
the product conveyed by the hose tube i
rated in a maximum rated working press
(psi).
Cover— Its primary purpose is to protect the tube
factors such as , abrasion, weather, ozo
Provides protection against
external elements-
Weather & Ozone
Abrasion, Cutting & Gouging
Work Environment Chemicals
Operator requ
for safe hose
1. Working Pressure (WP) should neve
liquids or gasses trapped in a hose w
closed. Thermal expansion of some
to exceed working pressure.
2. Always rate the Working Pressure of
by the lowest rated lement (hose W
ever is lowest).
3. Only use the hose assembly for the
for the service recommended in the
4. Have a HOSE INSPECTION & TEST
and / wor or d maged couplings
service.
5. Te t all ose assemblies as equired
so ner) to insure the assembly is sa
(Use RMA, USCG, OSHA, NFPA, LP
agency recommendation for pressur
guidelines.) If pressure testing is no
inspected every 6 months for signs o
6. Educate your self as to the condition
develop an inspection program that
inspected on a regular basis. Hose u
“When in doubt, remove the hose
a HOSE Inspection & Test Plan tha
inspection at least every 6 months.
7. Always use a coupling made from m
application and product conveyed. (R
8. Check the hose attachment for slipp
x sed cover from under the clamp
contact Novaflex Marine.
9. I many cases hose may be installed
because of vibration on a vessel, the
excessively over time. If there is this
protected from this potential damage