Check
Valves
Series
CV161
Check
Valve
Application
The CV161
Series
Check
Valves
allow
free
f low
in one
direction
while
preventing
flow
in the
reverse
direction.
They can
be
used
to
isolate
portions
oÍ
a
hydraulic
circuit
or
to
provide
a
free
flow
path
around
a
restrictive
valve.
Operation
Pressure
on
the
inlet of the
check
creates
a
Íorce
against
the
poppet,
pushing it off
its seat
and
permitting free
flow.
Reverse
flow through
the
check
is blocked
bY
the
PoPPet'
Features
.
Hardened
operating
parts
for
long
life
.
Fully
guided
poppet
for
smooth
operatron
.
Cartridge
design
lnstallation
Data
See
the
Installation
Information
section
of
this
catalog
for speciÍic
recommendations
pertaining
to system
cleanliness,
fluids,
seals
and
other
important
factors
relative
to the
proper
installation
and
use
oÍ
these
products.
PerÍormance
Curve
Free
Flow
vs.
Pressure
DroP
(Through
cartridge
only.
For
performance
of
bodies,
see
section
MV).
Bar
6.9
10
20
FLOW
(ln'+Out)
-
Free
Flow ->
PSI
100
80
bU
Àq6
o'"
CE
o
rr
4.1
É
l
Eza
ut
Í
o
1.4
Construction
Free
Flow
Outlel
ó
(2)
Free
Flow
A
lnlet V
(1)
Hydraulic Oil
lOO SSU. S.G
/
/
/
Cartridge
Valve SPeciÍications
Rated
Flow
60 GPM
(225 LiM)
Max.
Operating
Pressure
3500
PSI
(2a5 Bar)
Max.
Leakage
al
Rated
Pressure
5 drops
min.
11
3 cc
min.)
Operating
TemP.
Range
(Ambient)
-40oF
to
+ 200
F
(Nitrile)
-25'F
to
+ 250
F
lViton)
Cartridge
Material
All
parts
steel.
All operating
parts
hardened
steel
Body
Material
Steel
Filtration
ISO Code
16/13,
SAE
Class
4
or
better
Mounting
No Restrictions
Cavity
Common
Cavity
No. C16-2
(See
Cavity
Details sectron)
\'
60
GPM
LH9
!#Motun&uonrrol
Parker
Hannifin
CorPoration
Hydraulic
Valve
Division
Elyria,
Ohio
44035
à
.
Incnes
UlmenSlOhS
iMittimerersr
1.500
Hex
(38.1
)
1%6-12
UN-2A
Thread
Cartridge
Only
Cartridge
in
Body
(12.7)
-f
1.00
(25.4)
Free
Flow
Outlet
(2)
Ordering
InÍormation
CHECK
VALVE
Shipping
Weight
Cartridge
Only
0.6
tbs
(.27
kg)
Cartridge
in
Body
4.0
tbs.
(1
.BO
kg)
SERVICE
PARTS
Nitrile
Seat
Kit
-
SK16-2
Viton
Seal
Kit
-
SK16-2V
Hannifin
Corporation
Valve
Division
I
16
I
--r-
SIZE
I
3r+
CRACKING
PRESSURE
Note:
Consult
factory
Íor
other
cracktng pressures.
.Cracking
pressure
js
defined
as
the
pressure
at which
the
poppet
begins
to
unseat.
lt
occurs
when
leakagé
exceeds
5
drops
(1/3cc)iminure.
Check
Valves
Series
CV161
.140 (3.6)
RadÍus
I r-------->
I
rrow
tlo
IO
lL
l*l
STYLE
SEALS
3/4"
NPTF
(816_2_12P)
LXITF
(816-2-16P)
sAE-12
(816-2-12T)
sAE-1
6
(81
6_2_1
6T)
Ohio
44035
LHl
O
---q',tMotion&control
