Welcome to this Swagelok video
today's topic is considerations in selecting the end connection
for your hose assembly
the right hose
with the right end connection
Keeps your process performing safely And cost-effectively
The wrong hose could undermine your process
put personnel at risk
and compromise your bottom line
now that you've selected the core tube material
reinforcement layer
and cover for your hose
It is time to select an end connection
end connections are where most leaks occur
selecting the right end connection and attachment method can remove the need
for an adapter
to attach the hose to your system
and reduce potential leak points and allows a longer portion of flexible hose in
the assembly
there are three items to consider when selecting the end connection for your
hose
industry standards
Hose type
and system specifications
let's take a look at some of the industries that make use of hose
assemblies
general industrial
typically determined by pressure rating
pharmaceutical
typically determined by the need for a sterile design
and semiconductor typically determined by surface finish
Second consider the hose type you have selected
as it relates to compatibility and pressure and temperature ratings
metal fluoropolymer
nylon
or rubber
now consider the material and type of end connection in your system to which
the hose is being connected
the material of the system and hose and connections are usually the same
many types of end connections are similar in appearance
but may have minor dimensional or thread differences
based on regional requirements that are not interchangeable
In a general industry setting
NPT
ISO, BSP and lap joint flanges are commonly used
here's an example of a general industry setting
that has a 1/2 inch threaded end connection on one end
and 1/2 inch lap joint flange on the other end
the system rating is 100 psig
Or 6.8 bar
the hose type selected is a fluoropolymer hose
after identifying the specific threaded end connection and flange type
it is determined that the appropriate end connections
Are a 1/2 inch stainless steel male ISO
BSP tapered end connection on one
End and a 1/2 inch stainless steel ANSI flange on the other end
Note that it is important to identify the thread type and pressure rating to
ensure proper installation and system media containment
an example of a pharmaceutical setting
is a system that has a 1/2 inch sanitary flange on one end
and a 3/4 inch sanitary flange on the other end
the system rating is 60 psig or 4.1 bar
the hose type is fluoropolymer with a silicone cover
after identifying the flange dimensions
it is determined that the appropriate end connections are a 1/2 inch sanitary Kwik
clamp on one end
and a 3/4 inch sanitary Kwik clamp on the other end
note that it is important to identify the inside and outside flange dimensions
to determine the size and standard of the hose end connection to prevent
system contamination
an example of a semiconductor setting
is a system that has a face seal end connection on one end
And a tube fitting on the other end
the system rating is 700 psig or 48.2 bar
the hose type is metal
after identifying the sealing method of the system end connection
a 1/4 inch VCR® metal gasket face seal
is selected for the first end
after determining the tube fitting is fractional and not metric
a 1/4 inch Swagelok tube fitting is selected for the other end
note that it is important to identify the sealing method of the mating end
connection
and whether a connection is fractional
or metric to prevent system leakage and unusable end product
selecting the proper end connection improves your process by eliminating the
need for adapters
reducing leak points and production downtime
the risk to personnel, equipment
and your end product is lowered
refer to Swagelok dot com and the product literature for additional
information
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