Page 19 - NovaFlex_MarineBroch (Page 1)

S T A M P E D
‘S’ Size The hose inside diameter (I.D.) and length required to meet the
applications requirements (i.e. 3” x10 ft)
‘T’ Tempera ture Maximum & minimum temperature of the product conveyed
through the hose assembly. (i.e. 200° F)
‘A’ Application Describe the actual use of the hose (i.e. Ship to Shore unloading,
LPG transfer, in plant chemical use, etc.)
‘M’ Material Air, wa ter, the specific chemical, product or material conveyed
Conveyed ( i.e. compressed air).
‘P’ Pressure The pressure or vacuum at which the material is being conveyed
through the hose assembly. ( i.e. 100 psi ).
‘E’ Ends Type of end connections required to attach the NovaFlex hose
to the mating connection (i.e. NPT male, Cam & Groove, Acme
swivel etc).
‘D’ Delivery Date the product is required (i.e. June 6, 2003).
Once the information in the acronym “STAMPED” referenced above is obtained,
it is essential that a hose and coupling combination me et all of the “STAMPED”
requirements as recommended by Novaflex Marine.
“Always use the printed information from Novaflex Marine to insure accuracy of
any recommendation.” Do not exceed the printed, recommended service criteria.
It is the ultimate objective to obtain maximum safe service life for a product; to
accomplish this Novaflex Marine recommends the user maintain specific care during
the use of the hose assembly to insure continued safe operations.
Elements of a Hose
Tube Its purpose is to handle the liquid, solid or gaseous material the
hose is transferring. The tube is the innermost element of the hose
and is intended to be resistant to the product conveyed.
Reinforcement Its purpose is to withstand the working forces necessary to transfer
the product conveyed by the hose tube in the application. Typically
this is rated in a maximum rated working pressure (WP) in pounds
per square inch (psi).
Cover Its primary purpose is to protect the tube and reinforcement from
external factors such as, abrasion, weather, ozone and external
abuse.
Reinforcement
Provides strength to resist
pressure and vacuum.
Combinations of textile and
wire are used.
Tube
Designed to resist the product
to be conveyed through the
hose. Can be made from rubber,
metal, plastic or Teflon.
Cover
Provides protection
against external
elements.-Weather &
ozone abrasion,
cutting & gouging
work environment
chemicals
NovaFlex 4
General instruc
Hose Clamps and
There are numerous manufactures of h
does not recommend any particular bra
practices for the use of clamps and pre
Improperly attached clamps can cause
ejection from the fixture or leaky conne
superior type of hose attachment meth
crimped or swaged coupling system. D
attachment applications common in bo
have become the convenient method o
1. Each manufacture of hose clamps
Novaflex Marine recommends that
clamp not be used on any hose wit
psig with out the manufactures app
sure will change by hose ID.
2. Novaflex Marine recommends clam
inner liner to prevent rubber extrus
3. All hose is subject to cold flow. This
over time due to stress placed on r
Clamps should be retightened perio
tighten to stop a leak. Replace if le
4. Do not over tighten clamps, this co
into the rubber or plastic resulting i
Never exceed the torque rating rec
ture of the clamp!
5. In many applications it is prudent to
tion end to obtain a safe seal or me
(USCG , SAE, NMMA or ABYC). It
to know the requirements and use
clamps are used, offset the screw t
180° to get the best seal.
6. Use only marine grade stainless st
of corrosion.
Rubber
protruded
through clamp,
causing damage
see belo