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Technical & Safety Bulletin
Hose Fittings and Clamps
MORE INFORMATION
ERIKS Hose Technology 692/3 Stirling Road, Slough, Berkshire, SL1 4ST
Slough Tel 01753 570863 Bolton Tel 01204 541500Northampton Tel 01604 877668Fax 01753 824141Email [email protected]
Important safety update for hose users.Hose clamping safety note
Issue: What Fastening System is Best? The answer is: It All Depends.
Because the hose / coupling interface is critical to hose assembly performance, the proper selection of the clamping system enhances the usefulness of the hose assembly.
For best and safe performance, a complete examination of actual service conditions should be conducted and the clamping system should be selected to meet those service conditions under which it to be used. Installation of an the wrong clamping system can result in serious consequences.
HO
SEA
SSEM
BLI
ES
E.7.
4C
hap
ter E
: Tec
hn
ical
info
rmat
ion
WW
W.
LM
C-
CO
UP
LI
NG
S.
CO
M
Safe
ty c
lam
ps
On
e o
f th
e sa
fest
way
s to
ass
emb
le h
ose
s is
to
use
saf
ety
clam
ps.
Saf
ety
clam
ps
con
sist
of t
wo
cla
mp
sh
ells
, an
d a
re c
lam
ped
aro
un
d t
he
ho
se e
nd
by
mea
ns
of n
uts
an
d b
olt
s. In
ord
er t
o a
ssem
ble
ho
ses
usi
ng
saf
ety
clam
ps,
yo
um
ust
use
eit
her
a s
mo
oth
ho
se s
han
k co
mp
lyin
g w
ith
EN
144
20-2
/ D
IN 2
817
or a
ser
rate
d h
ose
sh
ank
wit
h s
afet
y co
llar c
om
ply
ing
wit
h E
N 1
4423
/
DIN
282
6. T
he
safe
ty c
lam
p c
olla
r is
lo
cate
d b
ehin
d t
he
cou
plin
g c
olla
r to
ach
ieve
a s
afe,
sec
ure
ass
emb
ly. A
lway
s ch
eck
the
wal
l th
ickn
ess
of
ho
ses
first
, an
d s
elec
t th
e re
com
men
ded
saf
ety
clam
p a
cco
rdin
gly
. Saf
ety
clam
ps
and
co
up
ling
s ca
n b
e u
sed
in a
ll ap
plic
atio
ns.
For
no
t st
and
ard
ized
th
in w
all h
ose
s LM
C-C
ou
plin
gs
off
ers
no
t st
and
ard
ized
safe
ty c
lam
ps.
Th
e as
sem
bly
met
ho
ds
of
thes
e sa
fety
cla
mp
s ar
e si
mila
r to
the
stan
dar
diz
ed o
nce
.
Wo
rm d
rive
cla
mp
s
Wo
rm d
rive
cla
mp
s ar
e o
ften
use
d w
ith
ind
ust
rial
co
up
ling
s in
sm
alle
dim
en-
sio
ns.
Th
e w
orm
dri
ve c
lam
p is
pla
ced
ove
r th
e h
ose
en
d, a
nd
clo
sed
sim
ply
by
turn
ing
a s
crew
. Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is r
eco
mm
end
ed fo
r as
pi-
rati
on
ho
ses,
su
ctio
n h
ose
s an
d (
smal
l d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wo
rm
dri
ve c
lam
ps
are
NO
T re
com
men
ded
fo
r u
se i
n a
ssem
blin
g h
igh
pre
ssu
re
Bu
cklin
g
Bu
cklin
g a
ssem
blie
s in
volv
e th
e u
se o
f a
stai
nle
ss s
teel
ban
d a
nd
sta
inle
ss
stee
l bu
cklin
g c
lip. U
sin
g a
ten
sio
nin
g t
oo
l, th
e st
ain
less
ste
el b
and
is t
igh
te-
ned
aro
un
d t
he
ho
se a
nd
sec
ure
d b
y cl
osi
ng
th
e b
uck
ling
rin
gs.
Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is
reco
mm
end
ed f
or
asp
irat
ion
ho
ses,
su
ctio
n h
ose
s an
d
(sm
all d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wir
e b
ind
ing
Ho
se b
ind
ing
invo
lves
pu
llin
g a
fin
e st
eel w
ire
tig
htl
y ar
ou
nd
th
e h
ose
usi
ng
a
ho
se b
ind
ing
mac
hin
e. T
his
ass
emb
ly i
s re
com
men
ded
fo
r u
se w
ith
fle
xib
le
thin
wal
l ho
ses,
like
fire
ho
ses.
Swag
ing
Swag
ing
is a
met
al f
orm
ing
tec
hn
iqu
e in
wh
ich
th
e m
etal
is f
orm
ed t
o s
hap
e
un
der
hig
h p
ress
ure
. Sw
agin
g d
iffer
s fr
om
forg
ing
in t
hat
th
e m
etal
is w
ork
ed
cold
. T
o s
wag
e ru
bb
er h
ose
s H
RRK
sw
age
ferr
ule
s ar
e re
com
men
ded
. Th
e
inte
rnal
su
rfac
e o
f H
HRK
sw
age
ferr
ule
s is
sim
ilar
to g
roo
ved
inte
rnal
su
rfac
e
of R
K-s
afet
y cl
amp
s. F
or
PTFE
ho
ses
HRP
sw
age
ferr
ule
s ar
e u
sed
. Th
e in
tern
-
al s
urf
ace
of
HRP
sw
age
ferr
ule
s is
sm
oo
th t
o a
void
ho
se d
amag
e w
hen
sw
a-
gin
g.
Co
mp
osi
te h
ose
s ar
e sw
aged
usi
ng
CH
R sw
age
ferr
ule
s in
co
mb
inat
ion
wit
h a
CX
cri
mp
ing
sea
l.
e-technical information 5/22/08 11:13 AM Page 58
Wor
m D
rive
Sys
tem
Ban
d it®
Str
aps
Wire
Whi
ppin
g S
yste
m
HO
SEA
SSEM
BLI
ES
E.7.
4C
hap
ter E
: Tec
hn
ical
info
rmat
ion
WW
W.
LM
C-
CO
UP
LI
NG
S.
CO
M
Safe
ty c
lam
ps
On
e o
f th
e sa
fest
way
s to
ass
emb
le h
ose
s is
to
use
saf
ety
clam
ps.
Saf
ety
clam
ps
con
sist
of t
wo
cla
mp
sh
ells
, an
d a
re c
lam
ped
aro
un
d t
he
ho
se e
nd
by
mea
ns
of n
uts
an
d b
olt
s. In
ord
er t
o a
ssem
ble
ho
ses
usi
ng
saf
ety
clam
ps,
yo
um
ust
use
eit
her
a s
mo
oth
ho
se s
han
k co
mp
lyin
g w
ith
EN
144
20-2
/ D
IN 2
817
or a
ser
rate
d h
ose
sh
ank
wit
h s
afet
y co
llar c
om
ply
ing
wit
h E
N 1
4423
/
DIN
282
6. T
he
safe
ty c
lam
p c
olla
r is
lo
cate
d b
ehin
d t
he
cou
plin
g c
olla
r to
ach
ieve
a s
afe,
sec
ure
ass
emb
ly. A
lway
s ch
eck
the
wal
l th
ickn
ess
of
ho
ses
first
, an
d s
elec
t th
e re
com
men
ded
saf
ety
clam
p a
cco
rdin
gly
. Saf
ety
clam
ps
and
co
up
ling
s ca
n b
e u
sed
in a
ll ap
plic
atio
ns.
For
no
t st
and
ard
ized
th
in w
all h
ose
s LM
C-C
ou
plin
gs
off
ers
no
t st
and
ard
ized
safe
ty c
lam
ps.
Th
e as
sem
bly
met
ho
ds
of
thes
e sa
fety
cla
mp
s ar
e si
mila
r to
the
stan
dar
diz
ed o
nce
.
Wo
rm d
rive
cla
mp
s
Wo
rm d
rive
cla
mp
s ar
e o
ften
use
d w
ith
ind
ust
rial
co
up
ling
s in
sm
alle
dim
en-
sio
ns.
Th
e w
orm
dri
ve c
lam
p is
pla
ced
ove
r th
e h
ose
en
d, a
nd
clo
sed
sim
ply
by
turn
ing
a s
crew
. Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is r
eco
mm
end
ed fo
r as
pi-
rati
on
ho
ses,
su
ctio
n h
ose
s an
d (
smal
l d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wo
rm
dri
ve c
lam
ps
are
NO
T re
com
men
ded
fo
r u
se i
n a
ssem
blin
g h
igh
pre
ssu
re
Bu
cklin
g
Bu
cklin
g a
ssem
blie
s in
volv
e th
e u
se o
f a
stai
nle
ss s
teel
ban
d a
nd
sta
inle
ss
stee
l bu
cklin
g c
lip. U
sin
g a
ten
sio
nin
g t
oo
l, th
e st
ain
less
ste
el b
and
is t
igh
te-
ned
aro
un
d t
he
ho
se a
nd
sec
ure
d b
y cl
osi
ng
th
e b
uck
ling
rin
gs.
Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is
reco
mm
end
ed f
or
asp
irat
ion
ho
ses,
su
ctio
n h
ose
s an
d
(sm
all d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wir
e b
ind
ing
Ho
se b
ind
ing
invo
lves
pu
llin
g a
fin
e st
eel w
ire
tig
htl
y ar
ou
nd
th
e h
ose
usi
ng
a
ho
se b
ind
ing
mac
hin
e. T
his
ass
emb
ly i
s re
com
men
ded
fo
r u
se w
ith
fle
xib
le
thin
wal
l ho
ses,
like
fire
ho
ses.
Swag
ing
Swag
ing
is a
met
al f
orm
ing
tec
hn
iqu
e in
wh
ich
th
e m
etal
is f
orm
ed t
o s
hap
e
un
der
hig
h p
ress
ure
. Sw
agin
g d
iffer
s fr
om
forg
ing
in t
hat
th
e m
etal
is w
ork
ed
cold
. T
o s
wag
e ru
bb
er h
ose
s H
RRK
sw
age
ferr
ule
s ar
e re
com
men
ded
. Th
e
inte
rnal
su
rfac
e o
f H
HRK
sw
age
ferr
ule
s is
sim
ilar
to g
roo
ved
inte
rnal
su
rfac
e
of R
K-s
afet
y cl
amp
s. F
or
PTFE
ho
ses
HRP
sw
age
ferr
ule
s ar
e u
sed
. Th
e in
tern
-
al s
urf
ace
of
HRP
sw
age
ferr
ule
s is
sm
oo
th t
o a
void
ho
se d
amag
e w
hen
sw
a-
gin
g.
Co
mp
osi
te h
ose
s ar
e sw
aged
usi
ng
CH
R sw
age
ferr
ule
s in
co
mb
inat
ion
wit
h a
CX
cri
mp
ing
sea
l.
e-technical information 5/22/08 11:13 AM Page 58
HO
SEA
SSEM
BLI
ES
E.7.
4C
hap
ter E
: Tec
hn
ical
info
rmat
ion
WW
W.
LM
C-
CO
UP
LI
NG
S.
CO
M
Safe
ty c
lam
ps
On
e o
f th
e sa
fest
way
s to
ass
emb
le h
ose
s is
to
use
saf
ety
clam
ps.
Saf
ety
clam
ps
con
sist
of t
wo
cla
mp
sh
ells
, an
d a
re c
lam
ped
aro
un
d t
he
ho
se e
nd
by
mea
ns
of n
uts
an
d b
olt
s. In
ord
er t
o a
ssem
ble
ho
ses
usi
ng
saf
ety
clam
ps,
yo
um
ust
use
eit
her
a s
mo
oth
ho
se s
han
k co
mp
lyin
g w
ith
EN
144
20-2
/ D
IN 2
817
or a
ser
rate
d h
ose
sh
ank
wit
h s
afet
y co
llar c
om
ply
ing
wit
h E
N 1
4423
/
DIN
282
6. T
he
safe
ty c
lam
p c
olla
r is
lo
cate
d b
ehin
d t
he
cou
plin
g c
olla
r to
ach
ieve
a s
afe,
sec
ure
ass
emb
ly. A
lway
s ch
eck
the
wal
l th
ickn
ess
of
ho
ses
first
, an
d s
elec
t th
e re
com
men
ded
saf
ety
clam
p a
cco
rdin
gly
. Saf
ety
clam
ps
and
co
up
ling
s ca
n b
e u
sed
in a
ll ap
plic
atio
ns.
For
no
t st
and
ard
ized
th
in w
all h
ose
s LM
C-C
ou
plin
gs
off
ers
no
t st
and
ard
ized
safe
ty c
lam
ps.
Th
e as
sem
bly
met
ho
ds
of
thes
e sa
fety
cla
mp
s ar
e si
mila
r to
the
stan
dar
diz
ed o
nce
.
Wo
rm d
rive
cla
mp
s
Wo
rm d
rive
cla
mp
s ar
e o
ften
use
d w
ith
ind
ust
rial
co
up
ling
s in
sm
alle
dim
en-
sio
ns.
Th
e w
orm
dri
ve c
lam
p is
pla
ced
ove
r th
e h
ose
en
d, a
nd
clo
sed
sim
ply
by
turn
ing
a s
crew
. Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is r
eco
mm
end
ed fo
r as
pi-
rati
on
ho
ses,
su
ctio
n h
ose
s an
d (
smal
l d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wo
rm
dri
ve c
lam
ps
are
NO
T re
com
men
ded
fo
r u
se i
n a
ssem
blin
g h
igh
pre
ssu
re
Bu
cklin
g
Bu
cklin
g a
ssem
blie
s in
volv
e th
e u
se o
f a
stai
nle
ss s
teel
ban
d a
nd
sta
inle
ss
stee
l bu
cklin
g c
lip. U
sin
g a
ten
sio
nin
g t
oo
l, th
e st
ain
less
ste
el b
and
is t
igh
te-
ned
aro
un
d t
he
ho
se a
nd
sec
ure
d b
y cl
osi
ng
th
e b
uck
ling
rin
gs.
Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is
reco
mm
end
ed f
or
asp
irat
ion
ho
ses,
su
ctio
n h
ose
s an
d
(sm
all d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wir
e b
ind
ing
Ho
se b
ind
ing
invo
lves
pu
llin
g a
fin
e st
eel w
ire
tig
htl
y ar
ou
nd
th
e h
ose
usi
ng
a
ho
se b
ind
ing
mac
hin
e. T
his
ass
emb
ly i
s re
com
men
ded
fo
r u
se w
ith
fle
xib
le
thin
wal
l ho
ses,
like
fire
ho
ses.
Swag
ing
Swag
ing
is a
met
al f
orm
ing
tec
hn
iqu
e in
wh
ich
th
e m
etal
is f
orm
ed t
o s
hap
e
un
der
hig
h p
ress
ure
. Sw
agin
g d
iffer
s fr
om
forg
ing
in t
hat
th
e m
etal
is w
ork
ed
cold
. T
o s
wag
e ru
bb
er h
ose
s H
RRK
sw
age
ferr
ule
s ar
e re
com
men
ded
. Th
e
inte
rnal
su
rfac
e o
f H
HRK
sw
age
ferr
ule
s is
sim
ilar
to g
roo
ved
inte
rnal
su
rfac
e
of R
K-s
afet
y cl
amp
s. F
or
PTFE
ho
ses
HRP
sw
age
ferr
ule
s ar
e u
sed
. Th
e in
tern
-
al s
urf
ace
of
HRP
sw
age
ferr
ule
s is
sm
oo
th t
o a
void
ho
se d
amag
e w
hen
sw
a-
gin
g.
Co
mp
osi
te h
ose
s ar
e sw
aged
usi
ng
CH
R sw
age
ferr
ule
s in
co
mb
inat
ion
wit
h a
CX
cri
mp
ing
sea
l.
e-technical information 5/22/08 11:13 AM Page 58
Saf
ety
Cla
mp
Sys
tem
HO
SEA
SSEM
BLI
ES
E.7.
4C
hap
ter E
: Tec
hn
ical
info
rmat
ion
WW
W.
LM
C-
CO
UP
LI
NG
S.
CO
M
Safe
ty c
lam
ps
On
e o
f th
e sa
fest
way
s to
ass
emb
le h
ose
s is
to
use
saf
ety
clam
ps.
Saf
ety
clam
ps
con
sist
of t
wo
cla
mp
sh
ells
, an
d a
re c
lam
ped
aro
un
d t
he
ho
se e
nd
by
mea
ns
of n
uts
an
d b
olt
s. In
ord
er t
o a
ssem
ble
ho
ses
usi
ng
saf
ety
clam
ps,
yo
um
ust
use
eit
her
a s
mo
oth
ho
se s
han
k co
mp
lyin
g w
ith
EN
144
20-2
/ D
IN 2
817
or a
ser
rate
d h
ose
sh
ank
wit
h s
afet
y co
llar c
om
ply
ing
wit
h E
N 1
4423
/
DIN
282
6. T
he
safe
ty c
lam
p c
olla
r is
lo
cate
d b
ehin
d t
he
cou
plin
g c
olla
r to
ach
ieve
a s
afe,
sec
ure
ass
emb
ly. A
lway
s ch
eck
the
wal
l th
ickn
ess
of
ho
ses
first
, an
d s
elec
t th
e re
com
men
ded
saf
ety
clam
p a
cco
rdin
gly
. Saf
ety
clam
ps
and
co
up
ling
s ca
n b
e u
sed
in a
ll ap
plic
atio
ns.
For
no
t st
and
ard
ized
th
in w
all h
ose
s LM
C-C
ou
plin
gs
off
ers
no
t st
and
ard
ized
safe
ty c
lam
ps.
Th
e as
sem
bly
met
ho
ds
of
thes
e sa
fety
cla
mp
s ar
e si
mila
r to
the
stan
dar
diz
ed o
nce
.
Wo
rm d
rive
cla
mp
s
Wo
rm d
rive
cla
mp
s ar
e o
ften
use
d w
ith
ind
ust
rial
co
up
ling
s in
sm
alle
dim
en-
sio
ns.
Th
e w
orm
dri
ve c
lam
p is
pla
ced
ove
r th
e h
ose
en
d, a
nd
clo
sed
sim
ply
by
turn
ing
a s
crew
. Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is r
eco
mm
end
ed fo
r as
pi-
rati
on
ho
ses,
su
ctio
n h
ose
s an
d (
smal
l d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wo
rm
dri
ve c
lam
ps
are
NO
T re
com
men
ded
fo
r u
se i
n a
ssem
blin
g h
igh
pre
ssu
re
Bu
cklin
g
Bu
cklin
g a
ssem
blie
s in
volv
e th
e u
se o
f a
stai
nle
ss s
teel
ban
d a
nd
sta
inle
ss
stee
l bu
cklin
g c
lip. U
sin
g a
ten
sio
nin
g t
oo
l, th
e st
ain
less
ste
el b
and
is t
igh
te-
ned
aro
un
d t
he
ho
se a
nd
sec
ure
d b
y cl
osi
ng
th
e b
uck
ling
rin
gs.
Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is
reco
mm
end
ed f
or
asp
irat
ion
ho
ses,
su
ctio
n h
ose
s an
d
(sm
all d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wir
e b
ind
ing
Ho
se b
ind
ing
invo
lves
pu
llin
g a
fin
e st
eel w
ire
tig
htl
y ar
ou
nd
th
e h
ose
usi
ng
a
ho
se b
ind
ing
mac
hin
e. T
his
ass
emb
ly i
s re
com
men
ded
fo
r u
se w
ith
fle
xib
le
thin
wal
l ho
ses,
like
fire
ho
ses.
Swag
ing
Swag
ing
is a
met
al f
orm
ing
tec
hn
iqu
e in
wh
ich
th
e m
etal
is f
orm
ed t
o s
hap
e
un
der
hig
h p
ress
ure
. Sw
agin
g d
iffer
s fr
om
forg
ing
in t
hat
th
e m
etal
is w
ork
ed
cold
. T
o s
wag
e ru
bb
er h
ose
s H
RRK
sw
age
ferr
ule
s ar
e re
com
men
ded
. Th
e
inte
rnal
su
rfac
e o
f H
HRK
sw
age
ferr
ule
s is
sim
ilar
to g
roo
ved
inte
rnal
su
rfac
e
of R
K-s
afet
y cl
amp
s. F
or
PTFE
ho
ses
HRP
sw
age
ferr
ule
s ar
e u
sed
. Th
e in
tern
-
al s
urf
ace
of
HRP
sw
age
ferr
ule
s is
sm
oo
th t
o a
void
ho
se d
amag
e w
hen
sw
a-
gin
g.
Co
mp
osi
te h
ose
s ar
e sw
aged
usi
ng
CH
R sw
age
ferr
ule
s in
co
mb
inat
ion
wit
h a
CX
cri
mp
ing
sea
l.
e-technical information 5/22/08 11:13 AM Page 58
HO
SEA
SSEM
BLI
ES
E.7.
4C
hap
ter E
: Tec
hn
ical
info
rmat
ion
WW
W.
LM
C-
CO
UP
LI
NG
S.
CO
M
Safe
ty c
lam
ps
On
e o
f th
e sa
fest
way
s to
ass
emb
le h
ose
s is
to
use
saf
ety
clam
ps.
Saf
ety
clam
ps
con
sist
of t
wo
cla
mp
sh
ells
, an
d a
re c
lam
ped
aro
un
d t
he
ho
se e
nd
by
mea
ns
of n
uts
an
d b
olt
s. In
ord
er t
o a
ssem
ble
ho
ses
usi
ng
saf
ety
clam
ps,
yo
um
ust
use
eit
her
a s
mo
oth
ho
se s
han
k co
mp
lyin
g w
ith
EN
144
20-2
/ D
IN 2
817
or a
ser
rate
d h
ose
sh
ank
wit
h s
afet
y co
llar c
om
ply
ing
wit
h E
N 1
4423
/
DIN
282
6. T
he
safe
ty c
lam
p c
olla
r is
lo
cate
d b
ehin
d t
he
cou
plin
g c
olla
r to
ach
ieve
a s
afe,
sec
ure
ass
emb
ly. A
lway
s ch
eck
the
wal
l th
ickn
ess
of
ho
ses
first
, an
d s
elec
t th
e re
com
men
ded
saf
ety
clam
p a
cco
rdin
gly
. Saf
ety
clam
ps
and
co
up
ling
s ca
n b
e u
sed
in a
ll ap
plic
atio
ns.
For
no
t st
and
ard
ized
th
in w
all h
ose
s LM
C-C
ou
plin
gs
off
ers
no
t st
and
ard
ized
safe
ty c
lam
ps.
Th
e as
sem
bly
met
ho
ds
of
thes
e sa
fety
cla
mp
s ar
e si
mila
r to
the
stan
dar
diz
ed o
nce
.
Wo
rm d
rive
cla
mp
s
Wo
rm d
rive
cla
mp
s ar
e o
ften
use
d w
ith
ind
ust
rial
co
up
ling
s in
sm
alle
dim
en-
sio
ns.
Th
e w
orm
dri
ve c
lam
p is
pla
ced
ove
r th
e h
ose
en
d, a
nd
clo
sed
sim
ply
by
turn
ing
a s
crew
. Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is r
eco
mm
end
ed fo
r as
pi-
rati
on
ho
ses,
su
ctio
n h
ose
s an
d (
smal
l d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wo
rm
dri
ve c
lam
ps
are
NO
T re
com
men
ded
fo
r u
se i
n a
ssem
blin
g h
igh
pre
ssu
re
Bu
cklin
g
Bu
cklin
g a
ssem
blie
s in
volv
e th
e u
se o
f a
stai
nle
ss s
teel
ban
d a
nd
sta
inle
ss
stee
l bu
cklin
g c
lip. U
sin
g a
ten
sio
nin
g t
oo
l, th
e st
ain
less
ste
el b
and
is t
igh
te-
ned
aro
un
d t
he
ho
se a
nd
sec
ure
d b
y cl
osi
ng
th
e b
uck
ling
rin
gs.
Th
is fa
st, e
asy
asse
mb
ly m
eth
od
is
reco
mm
end
ed f
or
asp
irat
ion
ho
ses,
su
ctio
n h
ose
s an
d
(sm
all d
iam
eter
) lo
w p
ress
ure
ho
ses.
Wir
e b
ind
ing
Ho
se b
ind
ing
invo
lves
pu
llin
g a
fin
e st
eel w
ire
tig
htl
y ar
ou
nd
th
e h
ose
usi
ng
a
ho
se b
ind
ing
mac
hin
e. T
his
ass
emb
ly i
s re
com
men
ded
fo
r u
se w
ith
fle
xib
le
thin
wal
l ho
ses,
like
fire
ho
ses.
Swag
ing
Swag
ing
is a
met
al f
orm
ing
tec
hn
iqu
e in
wh
ich
th
e m
etal
is f
orm
ed t
o s
hap
e
un
der
hig
h p
ress
ure
. Sw
agin
g d
iffer
s fr
om
forg
ing
in t
hat
th
e m
etal
is w
ork
ed
cold
. T
o s
wag
e ru
bb
er h
ose
s H
RRK
sw
age
ferr
ule
s ar
e re
com
men
ded
. Th
e
inte
rnal
su
rfac
e o
f H
HRK
sw
age
ferr
ule
s is
sim
ilar
to g
roo
ved
inte
rnal
su
rfac
e
of R
K-s
afet
y cl
amp
s. F
or
PTFE
ho
ses
HRP
sw
age
ferr
ule
s ar
e u
sed
. Th
e in
tern
-
al s
urf
ace
of
HRP
sw
age
ferr
ule
s is
sm
oo
th t
o a
void
ho
se d
amag
e w
hen
sw
a-
gin
g.
Co
mp
osi
te h
ose
s ar
e sw
aged
usi
ng
CH
R sw
age
ferr
ule
s in
co
mb
inat
ion
wit
h a
CX
cri
mp
ing
sea
l.
e-technical information 5/22/08 11:13 AM Page 58
Sw
agin
g S
yste
m
Clips: Jubilee®, Worm Drive Clips and Bolt Clamps:
This low cost option of fastening is useful for very low pressure and low temperature soft wall hose connection applications. Ideal applications for this system would be garden or low pressure air hoses. It is not recommended for leak free applications where the assembly is to withstand higher internal pressures, external forces or the application is of a critical nature where the transmitted media may be harmful and expensive. Blow outs can be a frequent occurrence and costly to maintain. However, the system is user friendly in a suitable application because damaged hoses can be repaired on-site relatively cheaply and quickly.
Hose tech bulletin LMC.indd 1 19/01/2011 13:08:50
Technical & Safety Bulletin
Hose Fittings and Clamps
MORE INFORMATION
ERIKS Hose Technology 692/3 Stirling Road, Slough, Berkshire, SL1 4ST
Slough Tel 01753 570863 Bolton Tel 01204 541500Northampton Tel 01604 877668Fax 01753 824141Email [email protected]
Crimping / Swaging:
This method of fastening fittings to hoses is ideal for applications where high internal pressures and /or external forces are present. The use of interlocking ferrules and hose-tails offer a safe, tamper proof, leak-free, and low maintenance solution for applications of a precarious or dynamic nature; e.g. CIP / SIP applications, ensuring systems remain closed circuit. Common in the Chemical, Petrol-Chemical, Food Processing, and Pharmaceutical industries, these safe assemblies can be tested and certificated at the factory and installed with minimal on-site effort. The downside of such a system is that the fittings are permanently attached. Thus, the assembly becomes quite user unfriendly on-site when a failure occurs – even if the fittings can be harvested for reuse, the assembly must be returned to the factory for refit and retesting in a controlled environment. In addition, crimped ends are vulnerable to thermal expansion and contraction; eg. Steam Applications. These fittings must be attached by a qualified technician with the proper tools and procedures in place.
LMC Clamps:
LMC Clamps are a versatile alternative to both clips and crimping methods. Like interlocking ferrules, these clamps have a rim on the inside which fits over and interlocks with the fitting collar. When the bolts are tightened properly, the coupling cannot be removed from the hose. RK safety clamps are the standard and ideal for heavier-walled hoses in large diameters. The Flexoline range is an evolution for today’s thin-walled, lighter, and ever more flexible hoses. RK safety clamps are too big for this new generation of hoses. LMC clamps are a safe and convenient solution. With routine inspection, an on-site advantage is these clamps solve the problem of leakage, blow offs, and potential consequences due to hose expansion and contraction. For example, in a steam application LMC RKS steam clamps, in conjunction with LMC steam couplings, inspected routinely will ensure the hose assembly remains safe and productive. These clamps have pressure ratings up to 25 bar, depending upon service conditions. Another benefit is these user friendly clamps can be easily dismantled and reused.
RECOMMENDS
RECOMMENDS
Hose tech bulletin LMC.indd 2 19/01/2011 13:09:00
